Incumbents defeated in state legislative elections, 2024

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Last updated on June 20, 2025
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On the Ballot takes a look at incumbents defeated in 2024 state legislative elections.

There were 5,807 state legislative seats up for election on November 5, 2024, in 44 states. This page analyzes incumbents defeated in those elections. An incumbent may be defeated at two points in an election cycle: during a primary and during a general election.[1]

In 2024, 303 incumbents lost their re-election bids: 134 in general elections and 169 in primaries. This was the second cycle in a row that primary defeats outnumbered those in general elections.

On this page, you will find:

Incumbents defeated in general elections

In state legislative general elections, 134 incumbents lost to challengers—2.9% of incumbents running for re-election and 4.4% of incumbents in contested general elections. This was the lowest percentage of incumbents defeated in general elections since at least 2010.

In 2024 general elections:

  • 93 Democratic incumbents lost, 4.3% of the 2,176 Democratic incumbents who ran and 7.0% of the 1,324 contested Democratic incumbents.
  • 39 Republican incumbents lost, 1.6% of the 2,491 Republican incumbents who ran and 2.3% of the 1,721 contested Republican incumbents.
  • Two minor party or independent incumbents lost, 18.2% of the 11 minor party or independent incumbents who ran and 28.6% of the seven contested independent or minor party incumbents.
  • The total number of incumbents defeated in general elections—134—represented a 40.4% decrease from the number of incumbents defeated in 2020.
  • In 2024

    Click [show] on the table below to view general election incumbent defeat statistics by state in 2024. Hover over column headings to learn more about their contents.

    Historical comparison

    The chart below shows a partisan breakdown of incumbents defeated in general elections from 2010 to 2024.

    Click [show] on the table below to view general election incumbent defeat statistics by state from 2010 to 2024. Hover over column headings to learn more about their contents.

    List of defeated incumbents

    Click [show] on the header below to see a full list of incumbents defeated in general elections by state. Winners marked with (i) were incumbents from the same chamber.

    Incumbents defeated in primaries

    In primaries, 169 incumbents lost to primary challengers, 3.5% of incumbents who ran for re-election and 16.3% of incumbents in contested primaries.

    In 2024 primaries:

  • 34 Democratic incumbents lost, 1.5% of the 2,216 Democratic incumbents who ran and 9.3% of the 365 contested Democratic incumbents.
  • 135 Republican incumbents lost, 5.1% of the 2,626 Republican incumbents who ran and 20.0% of the 674 contested Republican incumbents.
  • The total number of incumbents defeated in primaries—169—is less than in 2022 (213) and more than in 2020 (157).
  • In 2024

    Click [show] on the table below to view primary incumbent defeat statistics by state in 2024. Hover over column headings to learn more about their contents.

    Historical comparison

    The chart below shows a partisan breakdown of incumbents defeated in primaries from 2010 to 2024.

    Click [show] on the table below to view primary incumbent defeat statistics by state from 2010 to 2024. Hover over column headings to learn more about their contents.

    List of defeated incumbents

    Click [show] on the header below to see a full list of incumbents defeated in primaries by state. Winners marked with (i) were incumbents from the same chamber.

    By state

    Overview

    General elections

    Primaries

    Alaska

    General election defeats

    There were 50 seats up for election in Alaska. Overall, 42 incumbents advanced to the general election, including 17 Democrats, 20 Republicans, and five independent or minor party incumbents. Of that total, seven incumbents lost—two Democrats, four Republicans, and one undeclared—representing 16.7% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Alaska, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 12 2 16.7% 16 3 18.8% 33 5 15.2%
    Senate 5 0 0.0% 4 1 25.0% 9 1 11.1%
    Total 17 2 11.8% 20 4 20.0% 42 6 14.3%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Alaska, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 22 2 9.1% 23 1 4.3% 45 3 6.7%
    2012 21 6 28.6% 30 2 6.7% 52 9 17.3%
    2014 18 0 0.0% 27 1 3.7% 45 1 2.2%
    2016 16 0 0.0% 19 2 10.5% 36 2 5.6%
    2018 14 1 7.1% 20 1 5.0% 36 3 8.3%
    2020 17 0 0.0% 20 2 10.0% 39 2 5.1%
    2022 12 2 16.7% 24 5 20.8% 40 7 17.5%
    2024 17 2 11.8% 20 4 20.0% 42 6 14.3%

    Primary defeats

    There were 50 seats up for election in Alaska. Overall, 43 incumbents filed for re-election, including 17 Democrats and 21 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Alaska, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 12 0 0 0.0% 17 0 0 0.0% 34 0 0 0.0%
    Senate 5 0 0 0.0% 4 1 0 0.0% 9 1 0 0.0%
    Total 17 0 0 0.0% 21 1 0 0.0% 43 1 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Alaska, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 22 1 0 0.0% 23 5 0 0.0% 45 6 0 0.0%
    2012 21 3 0 0.0% 32 13 2 6.3% 54 16 2 3.7%
    2014 18 1 0 0.0% 29 3 2 6.9% 47 4 2 4.3%
    2016 18 2 2 11.1% 22 10 3 13.6% 41 12 5 12.2%
    2018 14 0 0 0.0% 21 11 1 4.8% 37 11 1 2.7%
    2020 17 2 0 0.0% 28 17 8 28.6% 47 19 8 17.0%
    2022 12 0 0 0.0% 24 0 0 0.0% 40 0 0 0.0%
    2024 17 0 0 0.0% 21 1 0 0.0% 43 1 0 0.0%

    Arizona

    General election defeats

    There were 90 seats up for election in Arizona. Overall, 67 incumbents advanced to the general election, including 34 Democrats and 33 Republicans. Of that total, 3 incumbents lost—2 Democrats and 1 Republican—representing 4.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Arizona, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 22 1 4.5% 22 1 4.5% 44 2 4.5%
    Senate 12 1 8.3% 11 0 0.0% 23 1 4.3%
    Total 34 2 5.9% 33 1 3.0% 67 3 4.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Arizona, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 19 6 31.6% 28 0 0.0% 47 6 12.8%
    2012 17 0 0.0% 40 4 10.0% 57 4 7.0%
    2014 26 1 3.8% 38 1 2.6% 64 2 3.1%
    2016 23 2 8.7% 37 2 5.4% 60 4 6.7%
    2018 23 0 0.0% 31 3 9.7% 54 3 5.6%
    2020 37 1 2.7% 33 2 6.1% 70 3 4.3%
    2022 18 0 0.0% 23 1 4.3% 41 1 2.4%
    2024 34 2 5.9% 33 1 3.0% 67 3 4.5%

    Primary defeats

    There were 90 seats up for election in Arizona. Overall, 70 incumbents filed for re-election, including 35 Democrats and 35 Republicans. Of that total, 3 incumbents lost in primaries—1 Democrat and 2 Republicans—representing 4.3% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Arizona, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 23 12 1 4.3% 22 13 0 0.0% 45 25 1 2.2%
    Senate 12 2 0 0.0% 13 5 2 15.4% 25 7 2 8.0%
    Total 35 14 1 2.9% 35 18 2 5.7% 70 32 3 4.3%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Arizona, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 20 7 1 5.0% 31 19 3 9.7% 51 26 4 7.8%
    2012 17 11 0 0.0% 43 13 3 7.0% 60 24 3 5.0%
    2014 27 6 1 3.7% 39 22 1 2.6% 66 28 2 3.0%
    2016 26 11 3 11.5% 38 8 1 2.6% 64 19 4 6.3%
    2018 24 8 1 4.2% 33 19 2 6.1% 57 27 3 5.3%
    2020 37 13 0 0.0% 36 14 3 8.3% 73 27 3 4.1%
    2022 21 9 3 14.3% 29 17 6 20.7% 50 26 9 18.0%
    2024 35 14 1 2.9% 35 18 2 5.7% 70 32 3 4.3%

    Arkansas

    General election defeats

    There were 118 seats up for election in Arkansas. Overall, 105 incumbents advanced to the general election, including 15 Democrats and 90 Republicans. Of that total, 1 Republican incumbent lost in general elections, representing 1.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Arkansas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 14 0 0.0% 74 1 1.4% 88 1 1.1%
    Senate 1 0 0.0% 16 0 0.0% 17 0 0.0%
    Total 15 0 0.0% 90 1 1.1% 105 1 1.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Arkansas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 41 6 14.6% 22 0 0.0% 63 6 9.5%
    2012 38 3 7.9% 47 3 6.4% 85 6 7.1%
    2014 43 10 23.3% 40 0 0.0% 83 10 12.0%
    2016 34 6 17.6% 64 0 0.0% 98 6 6.1%
    2018 20 2 10.0% 70 2 2.9% 91 5 5.5%
    2020 26 4 15.4% 78 1 1.3% 104 5 4.8%
    2022 22 1 4.5% 74 0 0.0% 96 1 1.0%
    2024 15 0 0.0% 90 1 1.1% 105 1 1.0%

    Primary defeats

    There were 118 seats up for election in Arkansas. Overall, 105 incumbents filed for re-election, including 15 Democrats and 90 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Arkansas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 14 4 0 0.0% 74 4 0 0.0% 88 8 0 0.0%
    Senate 1 0 0 0.0% 16 2 0 0.0% 17 2 0 0.0%
    Total 15 4 0 0.0% 90 6 0 0.0% 105 10 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Arkansas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 42 3 1 2.4% 22 1 0 0.0% 64 4 1 1.6%
    2012 40 6 1 2.5% 48 6 1 2.1% 88 12 2 2.3%
    2014 44 1 1 2.3% 43 7 3 7.0% 87 8 4 4.6%
    2016 36 2 1 2.8% 66 8 1 1.5% 102 10 2 2.0%
    2018 21 4 0 0.0% 73 11 3 4.1% 95 15 3 3.2%
    2020 27 3 0 0.0% 80 8 2 2.5% 107 11 2 1.9%
    2022 22 3 0 0.0% 82 26 8 9.8% 104 29 8 7.7%
    2024 15 4 0 0.0% 90 6 0 0.0% 105 10 0 0.0%

    California

    General election defeats

    There were 100 seats up for election in California. Overall, 65 incumbents advanced to the general election, including 51 Democrats and 14 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 1.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in California, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 43 0 0.0% 13 0 0.0% 56 0 0.0%
    Senate 8 1 12.5% 1 0 0.0% 9 1 11.1%
    Total 51 1 2.0% 14 0 0.0% 65 1 1.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in California, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 44 0 0.0% 18 0 0.0% 62 0 0.0%
    2012 36 2 5.6% 20 1 5.0% 56 3 5.4%
    2014 45 4 8.9% 22 0 0.0% 67 4 6.0%
    2016 51 2 3.9% 23 3 13.0% 74 5 6.8%
    2018 61 0 0.0% 27 5 18.5% 88 5 5.7%
    2020 65 0 0.0% 18 2 11.1% 84 2 2.4%
    2022 55 1 1.8% 16 4 25.0% 71 5 7.0%
    2024 51 1 2.0% 14 0 0.0% 65 1 1.5%

    Primary defeats

    There were 100 seats up for election in California. Overall, 66 incumbents filed for re-election, including 51 Democrats and 15 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in California, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 43 15 0 0.0% 14 5 0 0.0% 57 20 0 0.0%
    Senate 8 7 0 0.0% 1 0 0 0.0% 9 7 0 0.0%
    Total 51 22 0 0.0% 15 5 0 0.0% 66 27 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in California, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 44 3 0 0.0% 18 3 0 0.0% 62 6 0 0.0%
    2012 36 15 0 0.0% 20 7 0 0.0% 56 22 0 0.0%
    2014 45 19 0 0.0% 22 4 0 0.0% 67 23 0 0.0%
    2016 51 15 0 0.0% 23 10 0 0.0% 74 25 0 0.0%
    2018 59 25 0 0.0% 27 12 0 0.0% 86 37 0 0.0%
    2020 65 25 0 0.0% 20 11 2 10.0% 86 37 2 2.3%
    2022 53 25 0 0.0% 16 7 0 0.0% 69 32 0 0.0%
    2024 51 22 0 0.0% 15 5 0 0.0% 66 27 0 0.0%

    Colorado

    General election defeats

    There were 83 seats up for election in Colorado. Overall, 55 incumbents advanced to the general election, including 40 Democrats and 15 Republicans. Of that total, 2 Democratic incumbents lost in general elections, representing 3.6% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Colorado, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 33 2 6.1% 12 0 0.0% 45 2 4.4%
    Senate 7 0 0.0% 3 0 0.0% 10 0 0.0%
    Total 40 2 5.0% 15 0 0.0% 55 2 3.6%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Colorado, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 37 6 16.2% 26 0 0.0% 64 7 10.9%
    2012 29 0 0.0% 22 4 18.2% 51 4 7.8%
    2014 36 4 11.1% 23 2 8.7% 59 6 10.2%
    2016 26 0 0.0% 31 4 12.9% 57 4 7.0%
    2018 27 0 0.0% 26 4 15.4% 53 4 7.5%
    2020 41 1 2.4% 22 1 4.5% 63 2 3.2%
    2022 33 0 0.0% 16 6 37.5% 49 6 12.2%
    2024 40 2 5.0% 15 0 0.0% 55 2 3.6%

    Primary defeats

    There were 83 seats up for election in Colorado. Overall, 59 incumbents filed for re-election, including 44 Democrats and 15 Republicans. Of that total, three Democratic incumbents lost in primaries, representing 5.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Colorado, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 37 4 3 8.1% 12 1 0 0.0% 49 5 3 6.1%
    Senate 7 0 0 0.0% 3 2 0 0.0% 10 2 0 0.0%
    Total 44 4 3 6.8% 15 3 0 0.0% 59 7 3 5.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Colorado, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 37 1 0 0.0% 26 0 0 0.0% 64 1 0 0.0%
    2012 29 1 0 0.0% 24 3 2 8.3% 53 4 2 3.8%
    2014 36 0 0 0.0% 23 2 0 0.0% 59 2 0 0.0%
    2016 26 0 0 0.0% 33 5 2 6.1% 59 5 2 3.4%
    2018 27 0 0 0.0% 30 5 2 6.7% 57 5 2 3.5%
    2020 41 3 0 0.0% 22 2 0 0.0% 63 5 0 0.0%
    2022 34 1 0 0.0% 16 6 0 0.0% 50 7 0 0.0%
    2024 44 4 3 6.8% 15 3 0 0.0% 59 7 3 5.1%

    Connecticut

    General election defeats

    There were 187 seats up for election in Connecticut. Overall, 173 incumbents advanced to the general election, including 112 Democrats and 61 Republicans. Of that total, 8 incumbents lost—2 Democrats and 6 Republicans—representing 4.6% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Connecticut, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 89 2 2.2% 49 5 10.2% 138 7 5.1%
    Senate 23 0 0.0% 12 1 8.3% 35 1 2.9%
    Total 112 2 1.8% 61 6 9.8% 173 8 4.6%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Connecticut, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 123 13 10.6% 44 0 0.0% 167 13 7.8%
    2012 100 1 1.0% 59 3 5.1% 159 4 2.5%
    2014 103 9 8.7% 58 1 1.7% 161 10 6.2%
    2016 94 8 8.5% 68 2 2.9% 162 10 6.2%
    2018 82 0 0.0% 79 15 19.0% 161 15 9.3%
    2020 106 2 1.9% 64 6 9.4% 170 8 4.7%
    2022 103 3 2.9% 52 1 1.9% 155 4 2.6%
    2024 112 2 1.8% 61 6 9.8% 173 8 4.6%

    Primary defeats

    There were 187 seats up for election in Connecticut. Overall, 176 incumbents filed for re-election, including 115 Democrats and 61 Republicans. Of that total, two Democratic incumbents lost in primaries, representing 1.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Connecticut, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 92 7 2 2.2% 49 0 0 0.0% 141 7 2 1.4%
    Senate 23 2 0 0.0% 12 0 0 0.0% 35 2 0 0.0%
    Total 115 9 2 1.7% 61 0 0 0.0% 176 9 2 1.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Connecticut, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 124 10 1 0.8% 44 0 0 0.0% 168 10 1 0.6%
    2012 104 6 4 3.8% 59 1 0 0.0% 163 7 4 2.5%
    2014 105 8 2 1.9% 58 1 0 0.0% 163 9 2 1.2%
    2016 96 8 2 2.1% 68 2 0 0.0% 164 10 2 1.2%
    2018 84 5 2 2.4% 79 0 0 0.0% 163 5 2 1.2%
    2020 106 5 0 0.0% 64 0 0 0.0% 170 5 0 0.0%
    2022 105 3 2 1.9% 52 1 0 0.0% 157 4 2 1.3%
    2024 115 9 2 1.7% 61 0 0 0.0% 176 9 2 1.1%

    Delaware

    General election defeats

    There were 51 seats up for election in Delaware. Overall, 45 incumbents advanced to the general election, including 28 Democrats and 17 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Delaware, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 21 0 0.0% 14 0 0.0% 35 0 0.0%
    Senate 7 0 0.0% 3 0 0.0% 10 0 0.0%
    Total 28 0 0.0% 17 0 0.0% 45 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Delaware, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 31 2 6.5% 16 1 6.3% 47 3 6.4%
    2012 34 1 2.9% 16 2 12.5% 50 3 6.0%
    2014 30 2 6.7% 17 0 0.0% 47 2 4.3%
    2016 31 1 3.2% 19 0 0.0% 50 1 2.0%
    2018 20 0 0.0% 16 2 12.5% 36 2 5.6%
    2020 26 0 0.0% 20 2 10.0% 46 2 4.3%
    2022 34 0 0.0% 19 0 0.0% 53 0 0.0%
    2024 28 0 0.0% 17 0 0.0% 45 0 0.0%

    Primary defeats

    There were 51 seats up for election in Delaware. Overall, 46 incumbents filed for re-election, including 29 Democrats and 17 Republicans. Of that total, one Democratic incumbent lost in primaries, representing 2.2% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Delaware, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 22 5 1 4.5% 14 1 0 0.0% 36 6 1 2.8%
    Senate 7 0 0 0.0% 3 1 0 0.0% 10 1 0 0.0%
    Total 29 5 1 3.4% 17 2 0 0.0% 46 7 1 2.2%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Delaware, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 32 6 1 3.1% 16 1 0 0.0% 48 7 1 2.1%
    2012 35 6 1 2.9% 18 5 2 11.1% 53 11 3 5.7%
    2014 31 6 1 3.2% 18 3 1 5.6% 49 9 2 4.1%
    2016 31 5 0 0.0% 19 1 0 0.0% 50 6 0 0.0%
    2018 21 3 1 4.8% 16 0 0 0.0% 37 3 1 2.7%
    2020 30 7 4 13.3% 20 0 0 0.0% 50 7 4 8.0%
    2022 35 6 1 2.9% 20 2 1 5.0% 55 8 2 3.6%
    2024 29 5 1 3.4% 17 2 0 0.0% 46 7 1 2.2%

    Florida

    General election defeats

    There were 140 seats up for election in Florida. Overall, 109 incumbents advanced to the general election, including 35 Democrats and 74 Republicans. Of that total, 3 incumbents lost—2 Democrats and 1 Republican—representing 2.8% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Florida, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 32 2 6.3% 65 1 1.5% 97 3 3.1%
    Senate 3 0 0.0% 9 0 0.0% 12 0 0.0%
    Total 35 2 5.7% 74 1 1.4% 109 3 2.8%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Florida, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 40 5 12.5% 55 0 0.0% 95 5 5.3%
    2012 29 0 0.0% 77 5 6.5% 106 5 4.7%
    2014 42 5 11.9% 79 0 0.0% 121 5 4.1%
    2016 25 2 8.0% 72 1 1.4% 97 3 3.1%
    2018 37 2 5.4% 62 4 6.5% 99 6 6.1%
    2020 36 4 11.1% 60 0 0.0% 96 4 4.2%
    2022 38 4 10.5% 72 0 0.0% 110 4 3.6%
    2024 35 2 5.7% 74 1 1.4% 109 3 2.8%

    Primary defeats

    There were 140 seats up for election in Florida. Overall, 109 incumbents filed for re-election, including 35 Democrats and 74 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Florida, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 32 6 0 0.0% 65 4 0 0.0% 97 10 0 0.0%
    Senate 3 2 0 0.0% 9 1 0 0.0% 12 3 0 0.0%
    Total 35 8 0 0.0% 74 5 0 0.0% 109 13 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Florida, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 40 6 0 0.0% 57 12 1 1.8% 97 18 1 1.0%
    2012 31 7 2 6.5% 79 24 1 1.3% 110 31 3 2.7%
    2014 43 8 1 2.3% 79 13 0 0.0% 122 21 1 0.8%
    2016 26 7 0 0.0% 72 7 0 0.0% 98 14 0 0.0%
    2018 39 11 2 5.1% 63 8 0 0.0% 102 19 2 2.0%
    2020 38 8 2 5.3% 62 9 1 1.6% 100 17 3 3.0%
    2022 41 13 3 7.3% 73 19 1 1.4% 114 32 4 3.5%
    2024 35 8 0 0.0% 74 5 0 0.0% 109 13 0 0.0%

    Georgia

    General election defeats

    There were 236 seats up for election in Georgia. Overall, 217 incumbents advanced to the general election, including 89 Democrats and 128 Republicans. Of that total, 3 incumbents lost—1 Democrat and 2 Republicans—representing 1.4% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Georgia, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 69 1 1.4% 96 2 2.1% 165 3 1.8%
    Senate 20 0 0.0% 32 0 0.0% 52 0 0.0%
    Total 89 1 1.1% 128 2 1.6% 217 3 1.4%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Georgia, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 84 2 2.4% 108 1 0.9% 193 3 1.6%
    2012 67 3 4.5% 128 0 0.0% 196 3 1.5%
    2014 72 0 0.0% 139 0 0.0% 212 0 0.0%
    2016 68 1 1.5% 141 3 2.1% 209 4 1.9%
    2018 78 2 2.6% 129 8 6.2% 207 10 4.8%
    2020 84 1 1.2% 121 4 3.3% 205 5 2.4%
    2022 75 1 1.3% 109 0 0.0% 184 1 0.5%
    2024 89 1 1.1% 128 2 1.6% 217 3 1.4%

    Primary defeats

    There were 236 seats up for election in Georgia. Overall, 220 incumbents filed for re-election, including 91 Democrats and 129 Republicans. Of that total, three incumbents lost in primaries—two Democrats and one Republican—representing 1.4% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Georgia, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 71 16 2 2.8% 97 15 1 1.0% 168 31 3 1.8%
    Senate 20 6 0 0.0% 32 6 0 0.0% 52 12 0 0.0%
    Total 91 22 2 2.2% 129 21 1 0.8% 220 43 3 1.4%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Georgia, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 86 19 2 2.3% 111 22 3 2.7% 198 41 5 2.5%
    2012 73 25 6 8.2% 136 23 6 4.4% 210 48 12 5.7%
    2014 74 17 2 2.7% 144 30 5 3.5% 219 47 7 3.2%
    2016 71 19 3 4.2% 143 30 2 1.4% 214 49 5 2.3%
    2018 82 27 4 4.9% 134 26 5 3.7% 216 53 9 4.2%
    2020 89 28 4 4.5% 121 14 1 0.8% 210 42 5 2.4%
    2022 76 27 1 1.3% 112 36 3 2.7% 188 63 4 2.1%
    2024 91 22 2 2.2% 129 21 1 0.8% 220 43 3 1.4%

    Hawaii

    General election defeats

    There were 63 seats up for election in Hawaii. Overall, 54 incumbents advanced to the general election, including 47 Democrats and 7 Republicans. Of that total, 2 Democratic incumbents lost in general elections, representing 3.7% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Hawaii, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 37 2 5.4% 6 0 0.0% 43 2 4.7%
    Senate 10 0 0.0% 1 0 0.0% 11 0 0.0%
    Total 47 2 4.3% 7 0 0.0% 54 2 3.7%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Hawaii, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 51 1 2.0% 6 0 0.0% 57 1 1.8%
    2012 60 1 1.7% 6 2 33.3% 66 3 4.5%
    2014 49 0 0.0% 6 0 0.0% 55 0 0.0%
    2016 52 0 0.0% 8 2 25.0% 60 2 3.3%
    2018 47 0 0.0% 4 0 0.0% 51 0 0.0%
    2020 49 0 0.0% 5 0 0.0% 54 0 0.0%
    2022 55 4 7.3% 3 0 0.0% 58 4 6.9%
    2024 47 2 4.3% 7 0 0.0% 54 2 3.7%

    Primary defeats

    There were 63 seats up for election in Hawaii. Overall, 58 incumbents filed for re-election, including 51 Democrats and seven Republicans. Of that total, four Democratic incumbents lost in primaries, representing 6.9% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Hawaii, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 41 17 4 9.8% 6 1 0 0.0% 47 18 4 8.5%
    Senate 10 1 0 0.0% 1 0 0 0.0% 11 1 0 0.0%
    Total 51 18 4 7.8% 7 1 0 0.0% 58 19 4 6.9%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Hawaii, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 52 24 1 1.9% 6 0 0 0.0% 58 24 1 1.7%
    2012 64 24 4 6.3% 7 2 1 14.3% 71 26 5 7.0%
    2014 52 19 3 5.8% 6 1 0 0.0% 58 20 3 5.2%
    2016 53 22 1 1.9% 8 2 0 0.0% 61 24 1 1.6%
    2018 50 23 3 6.0% 4 0 0 0.0% 54 23 3 5.6%
    2020 51 20 2 3.9% 5 0 0 0.0% 56 20 2 3.6%
    2022 60 25 5 8.3% 3 0 0 0.0% 63 25 5 7.9%
    2024 51 18 4 7.8% 7 1 0 0.0% 58 19 4 6.9%

    Idaho

    General election defeats

    There were 105 seats up for election in Idaho. Overall, 87 incumbents advanced to the general election, including 17 Democrats and 70 Republicans. Of that total, 3 incumbent Democrats lostin general elections, representing 3.4% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Idaho, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 10 2 20.0% 47 0 0.0% 57 2 3.5%
    Senate 7 1 14.3% 23 0 0.0% 30 1 3.3%
    Total 17 3 17.6% 70 0 0.0% 87 3 3.4%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Idaho, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 19 2 10.5% 71 0 0.0% 90 2 2.2%
    2012 11 0 0.0% 55 2 3.6% 66 2 3.0%
    2014 15 0 0.0% 73 2 2.7% 88 2 2.3%
    2016 17 2 11.8% 72 0 0.0% 89 2 2.2%
    2018 14 0 0.0% 69 5 7.2% 83 5 6.0%
    2020 16 2 12.5% 67 0 0.0% 83 2 2.4%
    2022 13 1 7.7% 43 0 0.0% 56 1 1.8%
    2024 17 3 17.6% 70 0 0.0% 87 3 3.4%

    Primary defeats

    There were 105 seats up for election in Idaho. Overall, 99 incumbents filed for re-election, including 16 Democrats and 83 Republicans. Of that total, 14 Republican incumbents lost in primaries, representing 14.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Idaho, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 9 1 0 0.0% 56 31 10 17.9% 65 32 10 15.4%
    Senate 7 1 0 0.0% 27 16 5 18.5% 34 17 5 14.7%
    Total 16 2 0 0.0% 83 47 15 18.1% 99 49 15 15.2%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Idaho, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 19 1 0 0.0% 77 25 6 7.8% 96 26 6 6.3%
    2012 11 1 0 0.0% 59 33 3 5.1% 70 34 3 4.3%
    2014 15 1 0 0.0% 79 29 6 7.6% 94 30 6 6.4%
    2016 17 1 0 0.0% 79 30 7 8.9% 96 31 7 7.3%
    2018 14 1 0 0.0% 75 30 6 8.0% 89 31 6 6.7%
    2020 16 0 0 0.0% 71 28 5 7.0% 87 28 5 5.7%
    2022 13 0 0 0.0% 61 45 18 29.5% 74 45 18 24.3%
    2024 16 2 0 0.0% 83 47 15 18.1% 99 49 15 15.2%

    Illinois

    General election defeats

    There were 138 seats up for election in Illinois. Overall, 130 incumbents advanced to the general election, including 90 Democrats and 40 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Illinois, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 73 0 0.0% 38 0 0.0% 111 0 0.0%
    Senate 17 0 0.0% 2 0 0.0% 19 0 0.0%
    Total 90 0 0.0% 40 0 0.0% 130 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Illinois, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 75 7 9.3% 50 0 0.0% 125 7 5.6%
    2012 81 0 0.0% 58 5 8.6% 139 5 3.6%
    2014 80 1 1.3% 43 0 0.0% 123 1 0.8%
    2016 90 5 5.6% 53 1 1.9% 143 6 4.2%
    2018 75 1 1.3% 55 9 16.4% 130 10 7.7%
    2020 84 4 4.8% 38 3 7.9% 122 7 5.7%
    2022 100 2 2.0% 50 3 6.0% 150 5 3.3%
    2024 90 0 0.0% 40 0 0.0% 130 0 0.0%

    Primary defeats

    There were 137 seats up for election in Illinois. Overall, 131 incumbents filed for re-election, including 92 Democrats and 39 Republicans. Of that total, two Democratic incumbents lost in primaries, representing 1.5% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Illinois, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 75 14 2 2.7% 37 4 0 0.0% 112 18 2 1.8%
    Senate 17 1 0 0.0% 2 1 0 0.0% 19 2 0 0.0%
    Total 92 15 2 2.2% 39 5 0 0.0% 131 20 2 1.5%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Illinois, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 76 14 0 0.0% 51 7 1 2.0% 127 21 1 0.8%
    2012 82 21 1 1.2% 63 12 5 7.9% 145 33 6 4.1%
    2014 82 9 2 2.4% 43 5 1 2.3% 125 14 3 2.4%
    2016 92 11 1 1.1% 52 6 0 0.0% 144 17 1 0.7%
    2018 77 10 2 2.6% 52 7 1 1.9% 129 17 3 2.3%
    2020 84 18 2 2.4% 38 4 0 0.0% 122 22 2 1.6%
    2022 103 15 4 3.9% 52 10 2 3.8% 155 25 6 3.9%
    2024 92 15 2 2.2% 39 5 0 0.0% 131 20 2 1.5%

    Indiana

    General election defeats

    There were 125 seats up for election in Indiana. Overall, 114 incumbents advanced to the general election, including 35 Democrats and 79 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Indiana, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 29 0 0.0% 62 0 0.0% 91 0 0.0%
    Senate 6 0 0.0% 17 0 0.0% 23 0 0.0%
    Total 35 0 0.0% 79 0 0.0% 114 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Indiana, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 56 10 17.9% 55 0 0.0% 111 10 9.0%
    2012 34 3 8.8% 68 2 2.9% 102 5 4.9%
    2014 36 5 13.9% 79 1 1.3% 115 6 5.2%
    2016 29 0 0.0% 76 1 1.3% 105 1 1.0%
    2018 28 0 0.0% 81 4 4.9% 109 4 3.7%
    2020 35 5 14.3% 80 2 2.5% 115 7 6.1%
    2022 32 2 6.3% 76 0 0.0% 108 2 1.9%
    2024 35 0 0.0% 79 0 0.0% 114 0 0.0%

    Primary defeats

    There were 125 seats up for election in Indiana. Overall, 116 incumbents filed for re-election, including 36 Democrats and 80 Republicans. Of that total, 2 incumbents lost in primaries—1 Democrat and 1 Republican—representing 1.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Indiana, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 29 3 0 0.0% 63 19 1 1.6% 92 22 1 1.1%
    Senate 7 2 1 14.3% 17 5 0 0.0% 24 7 1 4.2%
    Total 36 5 1 2.8% 80 24 1 1.3% 116 29 2 1.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Indiana, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 56 6 0 0.0% 57 15 2 3.5% 113 21 2 1.8%
    2012 35 5 0 0.0% 68 12 0 0.0% 103 17 0 0.0%
    2014 36 0 0 0.0% 81 11 3 3.7% 117 11 3 2.6%
    2016 30 2 0 0.0% 78 15 2 2.6% 108 17 2 1.9%
    2018 28 7 0 0.0% 83 16 2 2.4% 111 23 2 1.8%
    2020 34 6 0 0.0% 81 17 1 1.2% 115 23 1 0.9%
    2022 32 2 0 0.0% 82 28 6 7.3% 114 30 6 5.3%
    2024 36 5 1 2.8% 80 24 1 1.3% 116 29 2 1.7%

    Iowa

    General election defeats

    There were 125 seats up for election in Iowa. Overall, 109 incumbents advanced to the general election, including 37 Democrats and 72 Republicans. Of that total, 6 incumbents lost—5 Democrats and 1 Republican—representing 5.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Iowa, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 32 3 9.4% 55 0 0.0% 87 3 3.4%
    Senate 5 2 40.0% 17 1 5.9% 22 3 13.6%
    Total 37 5 13.5% 72 1 1.4% 109 6 5.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Iowa, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 63 18 28.6% 42 0 0.0% 105 18 17.1%
    2012 45 1 2.2% 51 7 13.7% 96 8 8.3%
    2014 55 5 9.1% 54 0 0.0% 109 5 4.6%
    2016 49 7 14.3% 61 0 0.0% 110 7 6.4%
    2018 46 2 4.3% 55 5 9.1% 101 7 6.9%
    2020 49 7 14.3% 57 0 0.0% 106 7 6.6%
    2022 33 5 15.2% 55 2 3.6% 88 7 8.0%
    2024 37 5 13.5% 72 1 1.4% 109 6 5.5%

    Primary defeats

    There were 125 seats up for election in Iowa. Overall, 109 incumbents filed for re-election, including 37 Democrats and 72 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Iowa, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 32 1 0 0.0% 55 4 0 0.0% 87 5 0 0.0%
    Senate 5 1 0 0.0% 17 1 0 0.0% 22 2 0 0.0%
    Total 37 2 0 0.0% 72 5 0 0.0% 109 7 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Iowa, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 65 5 1 1.5% 43 3 1 2.3% 108 8 2 1.9%
    2012 45 0 0 0.0% 55 16 3 5.5% 100 16 3 3.0%
    2014 55 3 0 0.0% 55 5 0 0.0% 110 8 0 0.0%
    2016 50 4 1 2.0% 62 5 0 0.0% 112 9 1 0.9%
    2018 48 1 0 0.0% 55 4 0 0.0% 103 5 0 0.0%
    2020 51 4 1 2.0% 57 2 0 0.0% 108 6 1 0.9%
    2022 33 0 0 0.0% 60 14 6 10.0% 93 14 6 6.5%
    2024 37 2 0 0.0% 72 5 0 0.0% 109 7 0 0.0%

    Kansas

    General election defeats

    There were 165 seats up for election in Kansas. Overall, 131 incumbents advanced to the general election, including 47 Democrats and 84 Republicans. Of that total, 5 incumbent Democrats lost in general elections, representing 3.8% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Kansas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 37 3 8.1% 66 0 0.0% 103 3 2.9%
    Senate 10 2 20.0% 18 0 0.0% 28 2 7.1%
    Total 47 5 10.6% 84 0 0.0% 131 5 3.8%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Kansas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 44 13 29.5% 66 0 0.0% 110 13 11.8%
    2012 36 8 22.2% 71 6 8.5% 107 14 13.1%
    2014 29 3 10.3% 80 0 0.0% 109 3 2.8%
    2016 33 0 0.0% 84 11 13.1% 117 11 9.4%
    2018 40 5 12.5% 65 3 4.6% 105 8 7.6%
    2020 42 4 9.5% 86 1 1.2% 128 5 3.9%
    2022 31 1 3.2% 63 1 1.6% 94 2 2.1%
    2024 47 5 10.6% 84 0 0.0% 131 5 3.8%

    Primary defeats

    There were 165 seats up for election in Kansas. Overall, 135 incumbents filed for re-election, including 47 Democrats and 88 Republicans. Of that total, four incumbents lost in primaries—one Democrat and three Republicans—representing 3.0% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Kansas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 37 1 1 2.7% 69 8 2 2.9% 106 9 3 2.8%
    Senate 10 2 0 0.0% 19 7 1 5.3% 29 9 1 3.4%
    Total 47 3 1 2.1% 88 15 3 3.4% 135 18 4 3.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Kansas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 45 3 1 2.2% 70 20 4 5.7% 115 23 5 4.3%
    2012 37 6 1 2.7% 90 48 19 21.1% 127 54 20 15.7%
    2014 29 0 0 0.0% 83 21 3 3.6% 112 21 3 2.7%
    2016 34 4 1 2.9% 98 35 14 14.3% 132 39 15 11.4%
    2018 40 7 0 0.0% 72 19 7 9.7% 112 26 7 6.3%
    2020 43 3 1 2.3% 99 28 12 12.1% 142 31 13 9.2%
    2022 32 2 1 3.1% 70 14 7 10.0% 102 16 8 7.8%
    2024 47 3 1 2.1% 88 15 3 3.4% 135 18 4 3.0%

    Kentucky

    General election defeats

    There were 119 seats up for election in Kentucky. Overall, 100 incumbents advanced to the general election, including 19 Democrats and 81 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 1.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Kentucky, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 15 1 6.7% 71 0 0.0% 86 1 1.2%
    Senate 4 0 0.0% 10 0 0.0% 14 0 0.0%
    Total 19 1 5.3% 81 0 0.0% 100 1 1.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Kentucky, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 67 7 10.4% 42 1 2.4% 110 8 7.3%
    2012 63 3 4.8% 41 1 2.4% 104 4 3.8%
    2014 54 3 5.6% 52 1 1.9% 106 4 3.8%
    2016 56 17 30.4% 51 1 2.0% 107 18 16.8%
    2018 28 3 10.7% 66 6 9.1% 94 9 9.6%
    2020 35 7 20.0% 64 0 0.0% 99 7 7.1%
    2022 20 5 25.0% 73 0 0.0% 93 5 5.4%
    2024 19 1 5.3% 81 0 0.0% 100 1 1.0%

    Primary defeats

    There were 119 seats up for election in Kentucky. Overall, 103 incumbents filed for re-election, including 19 Democrats and 84 Republicans. Of that total, 3 Republicans lost in primaries, representing 2.9% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Kentucky, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 15 5 0 0.0% 73 16 2 2.7% 88 21 2 2.3%
    Senate 4 1 0 0.0% 11 4 1 9.1% 15 5 1 6.7%
    Total 19 6 0 0.0% 84 20 3 3.6% 103 26 3 2.9%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Kentucky, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 68 11 1 1.5% 43 10 1 2.3% 112 21 2 1.8%
    2012 64 11 1 1.6% 42 11 0 0.0% 106 22 1 0.9%
    2014 55 6 1 1.8% 53 9 1 1.9% 108 15 2 1.9%
    2016 57 7 1 1.8% 52 9 1 1.9% 109 16 2 1.8%
    2018 29 4 1 3.4% 69 15 3 4.3% 98 19 4 4.1%
    2020 35 3 0 0.0% 67 10 3 4.5% 102 13 3 2.9%
    2022 21 4 1 4.8% 79 27 6 7.6% 100 31 7 7.0%
    2024 19 6 0 0.0% 84 20 3 3.6% 103 26 3 2.9%

    Maine

    General election defeats

    There were 186 seats up for election in Maine. Overall, 143 incumbents advanced to the general election, including 78 Democrats and 64 Republicans. Of that total, 5 incumbents lost—3 Democrats and 2 Republicans—representing 3.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Maine, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 60 3 5.0% 55 2 3.6% 116 5 4.3%
    Senate 18 0 0.0% 9 0 0.0% 27 0 0.0%
    Total 78 3 3.8% 64 2 3.1% 143 5 3.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Maine, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 90 19 21.1% 49 1 2.0% 139 20 14.4%
    2012 53 1 1.9% 66 16 24.2% 121 17 14.0%
    2014 81 11 13.6% 42 2 4.8% 127 13 10.2%
    2016 69 8 11.6% 78 5 6.4% 147 13 8.8%
    2018 73 1 1.4% 50 9 18.0% 126 11 8.7%
    2020 79 8 10.1% 58 1 1.7% 142 11 7.7%
    2022 65 2 3.1% 43 3 7.0% 110 5 4.5%
    2024 78 3 3.8% 64 2 3.1% 143 5 3.5%

    Primary defeats

    There were 186 seats up for election in Maine. Overall, 146 incumbents filed for re-election, including 81 Democrats and 65 Republicans. Of that total, three incumbents lost in primaries—one Democrat and two Republicans—representing 2.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Maine, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 62 2 1 1.6% 55 3 1 1.8% 117 5 2 1.7%
    Senate 19 1 0 0.0% 10 1 1 10.0% 29 2 1 3.4%
    Total 81 3 1 1.2% 65 4 2 3.1% 146 7 3 2.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Maine, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 94 3 1 1.1% 49 1 0 0.0% 143 4 1 0.7%
    2012 54 4 0 0.0% 67 1 0 0.0% 123 5 0 0.0%
    2014 85 2 0 0.0% 48 1 0 0.0% 137 3 0 0.0%
    2016 69 2 0 0.0% 80 2 1 1.3% 149 4 1 0.7%
    2018 74 2 0 0.0% 53 0 0 0.0% 130 2 0 0.0%
    2020 82 4 0 0.0% 61 3 1 1.6% 148 7 1 0.7%
    2022 68 1 0 0.0% 46 2 1 2.2% 116 3 1 0.9%
    2024 81 3 1 1.2% 65 4 2 3.1% 146 7 3 2.1%

    Massachusetts

    General election defeats

    There were 200 seats up for election in Massachusetts. Overall, 179 incumbents advanced to the general election, including 153 Democrats and 25 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 0.6% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Massachusetts, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 120 1 0.8% 21 0 0.0% 142 1 0.7%
    Senate 33 0 0.0% 4 0 0.0% 37 0 0.0%
    Total 153 1 0.7% 25 0 0.0% 179 1 0.6%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Massachusetts, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 150 10 6.7% 15 0 0.0% 165 10 6.1%
    2012 149 0 0.0% 35 2 5.7% 184 2 1.1%
    2014 148 3 2.0% 30 0 0.0% 178 3 1.7%
    2016 145 0 0.0% 40 0 0.0% 185 0 0.0%
    2018 134 0 0.0% 37 2 5.4% 173 3 1.7%
    2020 149 0 0.0% 33 2 6.1% 183 2 1.1%
    2022 145 0 0.0% 28 1 3.6% 174 1 0.6%
    2024 153 1 0.7% 25 0 0.0% 179 1 0.6%

    Primary defeats

    There were 200 seats up for election in Massachusetts. Overall, 181 incumbents filed for re-election, including 154 Democrats and 26 Republicans. Of that total, two incumbents lost in primaries—one Democrat and one Republican—representing 1.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Massachusetts, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 121 13 1 0.8% 22 2 1 4.5% 144 15 2 1.4%
    Senate 33 3 0 0.0% 4 0 0 0.0% 37 3 0 0.0%
    Total 154 16 1 0.6% 26 2 1 3.8% 181 18 2 1.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Massachusetts, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 151 14 1 0.7% 15 0 0 0.0% 166 14 1 0.6%
    2012 154 18 4 2.6% 36 1 0 0.0% 190 19 4 2.1%
    2014 148 16 1 0.7% 30 1 0 0.0% 178 17 1 0.6%
    2016 147 19 2 1.4% 40 1 0 0.0% 187 20 2 1.1%
    2018 137 19 3 2.2% 37 1 0 0.0% 176 20 3 1.7%
    2020 151 22 2 1.3% 33 1 0 0.0% 185 23 2 1.1%
    2022 146 20 1 0.7% 29 1 0 0.0% 176 21 1 0.6%
    2024 154 16 1 0.6% 26 2 1 3.8% 181 18 2 1.1%

    Michigan

    General election defeats

    There were 110 seats up for election in Michigan. Overall, 100 incumbents advanced to the general election, including 52 Democrats and 48 Republicans. Of that total, 4 incumbent Democrats lost in general elections, representing 4.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Michigan, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 52 4 7.7% 48 0 0.0% 100 4 4.0%
    Senate Did not hold elections.
    Total 52 4 7.7% 48 0 0.0% 100 4 4.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Michigan, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 40 9 22.5% 28 0 0.0% 68 9 13.2%
    2012 32 0 0.0% 55 5 9.1% 87 5 5.7%
    2014 40 2 5.0% 56 0 0.0% 96 2 2.1%
    2016 32 1 3.1% 36 0 0.0% 68 1 1.5%
    2018 30 0 0.0% 45 3 6.7% 75 3 4.0%
    2020 39 2 5.1% 45 0 0.0% 84 2 2.4%
    2022 40 1 2.5% 38 2 5.3% 78 3 3.8%
    2024 52 4 7.7% 48 0 0.0% 100 4 4.0%

    Primary defeats

    There were 110 seats up for election in Michigan. Overall, 102 incumbents filed for re-election, including 52 Democrats and 50 Republicans. Of that total, 2 incumbents lost in primaries—0 Democrats and 2 Republicans—representing 2.0% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Michigan, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 52 17 0 0.0% 50 18 2 4.0% 102 35 2 2.0%
    Senate Did not hold elections.
    Total 52 17 0 0.0% 50 18 2 4.0% 102 35 2 2.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Michigan, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 40 10 0 0.0% 28 7 0 0.0% 68 17 0 0.0%
    2012 36 19 4 11.1% 56 18 1 1.8% 92 37 5 5.4%
    2014 40 9 0 0.0% 57 19 1 1.8% 97 28 1 1.0%
    2016 32 14 0 0.0% 36 9 0 0.0% 68 23 0 0.0%
    2018 32 14 2 6.3% 46 9 1 2.2% 78 23 3 3.8%
    2020 39 14 0 0.0% 45 10 0 0.0% 84 24 0 0.0%
    2022 42 18 2 4.8% 42 26 4 9.5% 84 44 6 7.1%
    2024 52 17 0 0.0% 50 18 2 4.0% 102 35 2 2.0%

    Minnesota

    General election defeats

    There were 134 seats up for election in Minnesota. Overall, 113 incumbents advanced to the general election, including 60 Democrats and 53 Republicans. Of that total, 1 Democratic incumbent lost in general elections, representing 0.9% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Minnesota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 60 1 1.7% 53 0 0.0% 113 1 0.9%
    Senate Did not hold elections.
    Total 60 1 1.7% 53 0 0.0% 113 1 0.9%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Minnesota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 120 34 28.3% 55 0 0.0% 175 34 19.4%
    2012 71 0 0.0% 81 16 19.8% 152 16 10.5%
    2014 68 11 16.2% 51 0 0.0% 119 11 9.2%
    2016 80 9 11.3% 89 2 2.2% 169 11 6.5%
    2018 41 0 0.0% 69 15 21.7% 110 15 13.6%
    2020 86 7 8.1% 87 2 2.3% 173 9 5.2%
    2022 70 3 4.3% 68 6 8.8% 138 9 6.5%
    2024 60 1 1.7% 53 0 0.0% 113 1 0.9%

    Primary defeats

    There were 134 seats up for election in Minnesota. Overall, 114 incumbents filed for re-election, including 60 Democrats and 54 Republicans. Of that total, one Republican incumbent lost in primaries, representing 0.9% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Minnesota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 60 1 0 0.0% 54 6 1 1.9% 114 7 1 0.9%
    Senate Did not hold elections.
    Total 60 1 0 0.0% 54 6 1 1.9% 114 7 1 0.9%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Minnesota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 121 5 1 0.8% 56 3 1 1.8% 177 8 2 1.1%
    2012 72 7 0 0.0% 82 4 1 1.2% 154 11 1 0.6%
    2014 68 4 0 0.0% 51 1 0 0.0% 119 5 0 0.0%
    2016 82 7 2 2.4% 91 4 2 2.2% 173 11 4 2.3%
    2018 41 5 0 0.0% 70 2 1 1.4% 111 7 1 0.9%
    2020 95 11 4 4.2% 87 8 0 0.0% 182 19 4 2.2%
    2022 74 8 3 4.1% 68 12 0 0.0% 142 20 3 2.1%
    2024 60 1 0 0.0% 54 6 1 1.9% 114 7 1 0.9%

    Missouri

    General election defeats

    There were 180 seats up for election in Missouri. Overall, 117 incumbents advanced to the general election, including 34 Democrats and 83 Republicans. Of that total, 2 incumbents lost—1 Democrat and 1 Republican—representing 1.7% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Missouri, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 30 1 3.3% 80 1 1.3% 110 2 1.8%
    Senate 4 0 0.0% 3 0 0.0% 7 0 0.0%
    Total 34 1 2.9% 83 1 1.2% 117 2 1.7%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Missouri, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 53 12 22.6% 49 0 0.0% 102 12 11.8%
    2012 36 2 5.6% 82 4 4.9% 118 6 5.1%
    2014 48 5 10.4% 100 0 0.0% 148 5 3.4%
    2016 32 0 0.0% 104 0 0.0% 137 1 0.7%
    2018 33 1 3.0% 82 2 2.4% 115 3 2.6%
    2020 35 0 0.0% 85 1 1.2% 120 1 0.8%
    2022 42 1 2.4% 82 1 1.2% 124 2 1.6%
    2024 34 1 2.9% 83 1 1.2% 117 2 1.7%

    Primary defeats

    There were 180 seats up for election in Missouri. Overall, 123 incumbents filed for re-election, including 35 Democrats and 88 Republicans. Of that total, 5 incumbents lost in primaries—0 Democrats and 5 Republicans—representing 4.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Missouri, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 31 4 0 0.0% 85 19 5 5.9% 116 23 5 4.3%
    Senate 4 2 0 0.0% 3 2 0 0.0% 7 4 0 0.0%
    Total 35 6 0 0.0% 88 21 5 5.7% 123 27 5 4.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Missouri, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 55 8 2 3.6% 50 7 1 2.0% 105 15 3 2.9%
    2012 43 19 7 16.3% 83 16 1 1.2% 126 35 8 6.3%
    2014 47 8 0 0.0% 100 14 0 0.0% 147 22 0 0.0%
    2016 35 7 2 5.7% 106 14 2 1.9% 142 21 4 2.8%
    2018 34 7 1 2.9% 83 12 0 0.0% 117 19 1 0.9%
    2020 36 9 1 2.8% 87 8 0 0.0% 123 17 1 0.8%
    2022 46 13 4 8.7% 86 22 3 3.5% 132 35 7 5.3%
    2024 35 6 0 0.0% 88 21 5 5.7% 123 27 5 4.1%

    Montana

    General election defeats

    There were 125 seats up for election in Montana. Overall, 68 incumbents advanced to the general election, including 24 Democrats and 44 Republicans. Of that total, 2 incumbent Republicans lost in general elections, representing 2.9% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Montana, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 22 0 0.0% 39 2 5.1% 61 2 3.3%
    Senate 2 0 0.0% 5 0 0.0% 7 0 0.0%
    Total 24 0 0.0% 44 2 4.5% 68 2 2.9%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Montana, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 33 9 27.3% 40 1 2.5% 73 10 13.7%
    2012 26 1 3.8% 53 7 13.2% 79 8 10.1%
    2014 30 2 6.7% 46 4 8.7% 76 6 7.9%
    2016 35 2 5.7% 42 3 7.1% 77 5 6.5%
    2018 34 0 0.0% 53 3 5.7% 87 3 3.4%
    2020 31 6 19.4% 47 0 0.0% 78 6 7.7%
    2022 28 3 10.7% 57 2 3.5% 85 5 5.9%
    2024 24 0 0.0% 44 2 4.5% 68 2 2.9%

    Primary defeats

    There were 125 seats up for election in Montana. Overall, 75 incumbents filed for re-election, including 24 Democrats and 51 Republicans. Of that total, six Republican incumbents lost in primaries, representing 8.0% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Montana, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 22 2 0 0.0% 45 19 5 11.1% 67 21 5 7.5%
    Senate 2 0 0 0.0% 6 3 1 16.7% 8 3 1 12.5%
    Total 24 2 0 0.0% 51 22 6 11.8% 75 24 6 8.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Montana, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 34 3 1 2.9% 41 8 1 2.4% 75 11 2 2.7%
    2012 26 3 1 3.8% 56 14 3 5.4% 82 17 4 4.9%
    2014 32 3 0 0.0% 48 15 2 4.2% 80 18 2 2.5%
    2016 36 1 0 0.0% 44 13 2 4.5% 80 14 2 2.5%
    2018 34 1 0 0.0% 55 9 1 1.8% 89 10 1 1.1%
    2020 31 4 0 0.0% 53 19 6 11.3% 84 23 6 7.1%
    2022 29 4 1 3.4% 57 9 0 0.0% 86 13 1 1.2%
    2024 24 2 0 0.0% 51 22 6 11.8% 75 24 6 8.0%

    Nebraska

    General election defeats

    There were 25 seats up for election in Nebraska. Overall, 10 incumbents advanced to the general election, including 4 Democrats and 6 Republicans. Of that total, 2 incumbents lost—1 Democrat and 1 Republican—representing 20.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Nebraska, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House N/A
    Senate 4 1 25.0% 6 1 16.7% 10 2 20.0%
    Total 4 1 25.0% 6 1 16.7% 10 2 20.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Nebraska, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 10 1 10.0% 10 0 0.0% 21 2 9.5%
    2012 6 1 16.7% 10 0 0.0% 16 1 6.3%
    2014 2 0 0.0% 5 0 0.0% 7 0 0.0%
    2016 4 0 0.0% 8 5 62.5% 13 5 38.5%
    2018 3 0 0.0% 12 2 16.7% 16 3 18.8%
    2020 7 1 14.3% 12 1 8.3% 19 2 10.5%
    2022 3 0 0.0% 8 0 0.0% 11 0 0.0%
    2024 4 1 25.0% 6 1 16.7% 10 2 20.0%

    Primary defeats

    There were 25 seats up for election in Nebraska. Overall, 10 incumbents filed for re-election, including 4 Democrats and 6 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Nebraska, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    Senate 4 2 0 0.0% 6 3 0 0.0% 10 5 0 0.0%
    Total 4 2 0 0.0% 6 3 0 0.0% 10 5 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Nebraska, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 10 4 0 0.0% 10 1 0 0.0% 21 6 0 0.0%
    2012 6 2 0 0.0% 10 2 0 0.0% 16 4 0 0.0%
    2014 2 0 0 0.0% 5 1 0 0.0% 7 1 0 0.0%
    2016 4 2 0 0.0% 9 1 1 11.1% 14 4 1 7.1%
    2018 3 0 0 0.0% 12 4 0 0.0% 16 5 0 0.0%
    2020 7 0 0 0.0% 12 2 0 0.0% 19 2 0 0.0%
    2022 3 2 0 0.0% 8 4 0 0.0% 11 6 0 0.0%
    2024 4 2 0 0.0% 6 3 0 0.0% 10 5 0 0.0%

    Nevada

    General election defeats

    There were 52 seats up for election in Nevada. Overall, 37 incumbents advanced to the general election, including 23 Democrats and 14 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 2.7% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Nevada, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 18 0 0.0% 13 0 0.0% 31 0 0.0%
    Senate 5 1 20.0% 1 0 0.0% 6 1 16.7%
    Total 23 1 4.3% 14 0 0.0% 37 1 2.7%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Nevada, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 17 2 11.8% 8 0 0.0% 25 2 8.0%
    2012 23 1 4.3% 11 0 0.0% 34 1 2.9%
    2014 26 7 26.9% 17 0 0.0% 43 7 16.3%
    2016 21 0 0.0% 17 6 35.3% 39 7 17.9%
    2018 24 0 0.0% 13 2 15.4% 37 2 5.4%
    2020 25 3 12.0% 13 0 0.0% 38 3 7.9%
    2022 25 0 0.0% 8 0 0.0% 33 0 0.0%
    2024 23 1 4.3% 14 0 0.0% 37 1 2.7%

    Primary defeats

    There were 52 seats up for election in Nevada. Overall, 37 incumbents filed for re-election, including 23 Democrats and 14 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Nevada, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 18 3 0 0.0% 13 2 0 0.0% 31 5 0 0.0%
    Senate 5 2 0 0.0% 1 1 0 0.0% 6 3 0 0.0%
    Total 23 5 0 0.0% 14 3 0 0.0% 37 8 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Nevada, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 17 1 0 0.0% 9 4 1 11.1% 26 5 1 3.8%
    2012 24 10 1 4.2% 12 2 1 8.3% 36 12 2 5.6%
    2014 26 5 0 0.0% 17 8 0 0.0% 43 13 0 0.0%
    2016 21 6 0 0.0% 19 11 2 10.5% 41 17 2 4.9%
    2018 24 3 0 0.0% 14 5 1 7.1% 38 8 1 2.6%
    2020 25 3 0 0.0% 14 4 1 7.1% 39 7 1 2.6%
    2022 25 9 0 0.0% 9 4 1 11.1% 34 13 1 2.9%
    2024 23 5 0 0.0% 14 3 0 0.0% 37 8 0 0.0%

    New Hampshire

    General election defeats

    There were 424 seats up for election in New Hampshire. Overall, 320 incumbents advanced to the general election, including 158 Democrats and 162 Republicans. Of that total, 24 incumbents lost—20 Democrats and 4 Republicans—representing 7.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New Hampshire, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 150 18 12.0% 150 4 2.7% 300 22 7.3%
    Senate 8 2 25.0% 12 0 0.0% 20 2 10.0%
    Total 158 20 12.7% 162 4 2.5% 320 24 7.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New Hampshire, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 174 88 50.6% 137 0 0.0% 311 88 28.3%
    2012 82 4 4.9% 211 74 35.1% 293 78 26.6%
    2014 169 43 25.4% 135 3 2.2% 304 46 15.1%
    2016 128 11 8.6% 169 12 7.1% 297 23 7.7%
    2018 141 6 4.3% 159 43 27.0% 303 52 17.2%
    2020 205 36 17.6% 128 1 0.8% 333 37 11.1%
    2022 126 3 2.4% 156 19 12.2% 282 22 7.8%
    2024 158 20 12.7% 162 4 2.5% 320 24 7.5%

    Primary defeats

    There were 424 seats up for election in New Hampshire. Overall, 329 incumbents filed for re-election, including 158 Democrats and 171 Republicans. Of that total, nine Republican incumbents lost in primaries, representing 2.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New Hampshire, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 150 23 0 0.0% 159 62 9 5.7% 309 85 9 2.9%
    Senate 8 0 0 0.0% 12 1 0 0.0% 20 1 0 0.0%
    Total 158 23 0 0.0% 171 63 9 5.3% 329 86 9 2.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New Hampshire, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 178 45 3 1.7% 144 79 8 5.6% 322 124 11 3.4%
    2012 85 14 3 3.5% 230 131 19 8.3% 315 145 22 7.0%
    2014 170 24 1 0.6% 143 80 8 5.6% 313 104 9 2.9%
    2016 128 25 0 0.0% 179 100 10 5.6% 307 125 10 3.3%
    2018 147 30 6 4.1% 170 57 11 6.5% 320 87 17 5.3%
    2020 209 44 4 1.9% 135 56 7 5.2% 344 100 11 3.2%
    2022 133 26 6 4.5% 169 90 12 7.1% 302 116 18 6.0%
    2024 158 23 0 0.0% 171 63 9 5.3% 329 86 9 2.7%

    New Mexico

    General election defeats

    There were 112 seats up for election in New Mexico. Overall, 85 incumbents advanced to the general election, including 59 Democrats and 26 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 1.2% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New Mexico, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 39 1 2.6% 20 0 0.0% 59 1 1.7%
    Senate 20 0 0.0% 6 0 0.0% 26 0 0.0%
    Total 59 1 1.7% 26 0 0.0% 85 1 1.2%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New Mexico, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 43 7 16.3% 22 0 0.0% 65 7 10.8%
    2012 45 4 8.9% 39 3 7.7% 85 8 9.4%
    2014 31 5 16.1% 27 1 3.7% 58 6 10.3%
    2016 52 1 1.9% 51 7 13.7% 103 8 7.8%
    2018 32 1 3.1% 26 6 23.1% 58 7 12.1%
    2020 61 2 3.3% 33 2 6.1% 94 4 4.3%
    2022 38 1 2.6% 18 1 5.6% 56 2 3.6%
    2024 59 1 1.7% 26 0 0.0% 85 1 1.2%

    Primary defeats

    There were 112 seats up for election in New Mexico. Overall, 93 incumbents filed for re-election, including 65 Democrats and 28 Republicans. Of that total, seven incumbents lost in primaries—five Democrats and two Republicans—representing 7.5% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New Mexico, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 42 10 3 7.1% 20 3 0 0.0% 62 13 3 4.8%
    Senate 23 7 2 8.7% 8 2 2 25.0% 31 9 4 12.9%
    Total 65 17 5 7.7% 28 5 2 7.1% 93 22 7 7.5%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New Mexico, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 44 10 1 2.3% 23 4 1 4.3% 67 14 2 3.0%
    2012 50 19 4 8.0% 40 5 1 2.5% 91 24 5 5.5%
    2014 31 5 1 3.2% 28 2 1 3.6% 59 7 2 3.4%
    2016 52 9 1 1.9% 50 0 0 0.0% 102 9 1 1.0%
    2018 35 5 3 8.6% 26 1 0 0.0% 61 6 3 4.9%
    2020 65 17 5 7.7% 36 3 2 5.6% 101 20 7 6.9%
    2022 39 8 1 2.6% 19 4 1 5.3% 58 12 2 3.4%
    2024 65 17 5 7.7% 28 5 2 7.1% 93 22 7 7.5%

    New York

    General election defeats

    There were 213 seats up for election in New York. Overall, 193 incumbents advanced to the general election, including 128 Democrats and 65 Republicans. Of that total, 6 incumbents lost—3 Democrats and 3 Republicans—representing 3.1% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New York, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 90 2 2.2% 44 3 6.8% 134 5 3.7%
    Senate 38 1 2.6% 21 0 0.0% 59 1 1.7%
    Total 128 3 2.3% 65 3 4.6% 193 6 3.1%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in New York, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 124 10 8.1% 59 1 1.7% 183 11 6.0%
    2012 116 0 0.0% 71 4 5.6% 187 4 2.1%
    2014 125 4 3.2% 65 0 0.0% 190 4 2.1%
    2016 126 1 0.8% 64 1 1.6% 190 2 1.1%
    2018 121 3 2.5% 63 8 12.7% 185 11 5.9%
    2020 126 3 2.4% 46 1 2.2% 174 5 2.9%
    2022 135 8 5.9% 50 2 4.0% 185 10 5.4%
    2024 128 3 2.3% 65 3 4.6% 193 6 3.1%

    Primary defeats

    There were 213 seats up for election in New York. Overall, 209 incumbents filed for re-election, including 129 Democrats and 68 Republicans. Of that total, one Democratic incumbent lost in primaries, representing 0.5% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New York, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 92 16 1 1.1% 46 1 0 0.0% 149 17 1 0.7%
    Senate 37 1 0 0.0% 22 0 0 0.0% 60 1 0 0.0%
    Total 129 17 1 0.8% 68 1 0 0.0% 209 18 1 0.5%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in New York, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 128 35 4 3.1% 59 2 0 0.0% 187 37 4 2.1%
    2012 118 24 2 1.7% 71 9 0 0.0% 189 33 2 1.1%
    2014 126 22 1 0.8% 66 5 1 1.5% 192 27 2 1.0%
    2016 129 28 3 2.3% 65 5 0 0.0% 194 33 3 1.5%
    2018 131 27 9 6.9% 64 4 1 1.6% 195 31 10 5.1%
    2020 132 34 6 4.5% 46 1 0 0.0% 180 35 6 3.3%
    2022 139 42 3 2.2% 52 4 1 1.9% 191 46 4 2.1%
    2024 129 17 1 0.8% 68 1 0 0.0% 209 18 1 0.5%

    North Carolina

    General election defeats

    There were 170 seats up for election in North Carolina. Overall, 145 incumbents advanced to the general election, including 56 Democrats and 89 Republicans. Of that total, 3 incumbents lost—1 Democrat and 2 Republicans—representing 2.1% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in North Carolina, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 40 1 2.5% 61 2 3.3% 101 3 3.0%
    Senate 16 0 0.0% 28 0 0.0% 44 0 0.0%
    Total 56 1 1.8% 89 2 2.2% 145 3 2.1%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in North Carolina, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 83 20 24.1% 63 0 0.0% 146 20 13.7%
    2012 47 5 10.6% 70 1 1.4% 117 6 5.1%
    2014 52 1 1.9% 102 4 3.9% 154 5 3.2%
    2016 57 3 5.3% 95 3 3.2% 152 6 3.9%
    2018 54 2 3.7% 92 14 15.2% 146 16 11.0%
    2020 69 6 8.7% 75 2 2.7% 144 8 5.6%
    2022 54 7 13.0% 84 1 1.2% 138 8 5.8%
    2024 56 1 1.8% 89 2 2.2% 145 3 2.1%

    Primary defeats

    There were 170 seats up for election in North Carolina. Overall, 149 incumbents filed for re-election, including 58 Democrats and 91 Republicans. Of that total, four incumbents lost in primaries—two Democrats and two Republicans—representing 2.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in North Carolina, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 41 5 1 2.4% 64 11 2 3.1% 105 16 3 2.9%
    Senate 17 3 1 5.9% 27 0 0 0.0% 44 3 1 2.3%
    Total 58 8 2 3.4% 91 11 2 2.2% 149 19 4 2.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in North Carolina, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 88 24 4 4.5% 64 15 1 1.6% 152 39 5 3.3%
    2012 50 15 2 4.0% 77 22 5 6.5% 127 37 7 5.5%
    2014 54 9 2 3.7% 102 20 2 2.0% 156 29 4 2.6%
    2016 57 13 1 1.8% 93 18 1 1.1% 150 31 2 1.3%
    2018 57 11 3 5.3% 96 28 5 5.2% 153 39 8 5.2%
    2020 69 12 1 1.4% 75 12 1 1.3% 144 24 2 1.4%
    2022 56 9 2 3.6% 88 24 5 5.7% 144 33 7 4.9%
    2024 58 8 2 3.4% 91 11 2 2.2% 149 19 4 2.7%

    North Dakota

    General election defeats

    There were 69 seats up for election in North Dakota. Overall, 50 incumbents advanced to the general election, including 4 Democrats and 46 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 2.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in North Dakota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 3 1 33.3% 32 0 0.0% 35 1 2.9%
    Senate 1 0 0.0% 14 0 0.0% 15 0 0.0%
    Total 4 1 25.0% 46 0 0.0% 50 1 2.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in North Dakota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 24 12 50.0% 33 0 0.0% 57 12 21.1%
    2012 18 4 22.2% 39 2 5.1% 57 6 10.5%
    2014 10 1 10.0% 49 2 4.1% 59 3 5.1%
    2016 21 15 71.4% 31 2 6.5% 52 17 32.7%
    2018 11 0 0.0% 48 4 8.3% 59 4 6.8%
    2020 7 3 42.9% 54 0 0.0% 61 3 4.9%
    2022 16 6 37.5% 51 2 3.9% 67 8 11.9%
    2024 4 1 25.0% 46 0 0.0% 50 1 2.0%

    Primary defeats

    There were 69 seats up for election in North Dakota. Overall, 52 incumbents filed for re-election, including 4 Democrats and 48 Republicans. Of that total, two Republican incumbents lost in primaries, representing 3.8% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in North Dakota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 3 0 0 0.0% 34 17 2 5.9% 37 17 2 5.4%
    Senate 1 0 0 0.0% 14 2 0 0.0% 15 2 0 0.0%
    Total 4 0 0 0.0% 48 19 2 4.2% 52 19 2 3.8%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in North Dakota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 24 2 0 0.0% 33 0 0 0.0% 57 2 0 0.0%
    2012 18 0 0 0.0% 43 10 4 9.3% 61 10 4 6.6%
    2014 10 0 0 0.0% 49 4 0 0.0% 59 4 0 0.0%
    2016 21 0 0 0.0% 33 7 2 6.1% 54 7 2 3.7%
    2018 11 0 0 0.0% 49 6 1 2.0% 60 6 1 1.7%
    2020 7 0 0 0.0% 56 5 2 3.6% 63 5 2 3.2%
    2022 17 2 1 5.9% 58 25 7 12.1% 75 27 8 10.7%
    2024 4 0 0 0.0% 48 19 2 4.2% 52 19 2 3.8%

    Ohio

    General election defeats

    There were 115 seats up for election in Ohio. Overall, 82 incumbents advanced to the general election, including 23 Democrats and 59 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Ohio, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 23 0 0.0% 49 0 0.0% 72 0 0.0%
    Senate 0 0 10 0 0.0% 10 0 0.0%
    Total 23 0 0.0% 59 0 0.0% 82 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Ohio, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 46 13 28.3% 40 0 0.0% 86 13 15.1%
    2012 35 0 0.0% 65 2 3.1% 100 2 2.0%
    2014 30 3 10.0% 56 0 0.0% 86 3 3.5%
    2016 28 1 3.6% 59 0 0.0% 87 1 1.1%
    2018 24 0 0.0% 50 1 2.0% 74 1 1.4%
    2020 35 3 8.6% 56 1 1.8% 91 4 4.4%
    2022 23 2 8.7% 60 0 0.0% 83 2 2.4%
    2024 23 0 0.0% 59 0 0.0% 82 0 0.0%

    Primary defeats

    There were 115 seats up for election in Ohio. Overall, 86 incumbents filed for re-election, including 25 Democrats and 61 Republicans. Of that total, five incumbents lost in primaries—one Democrat and four Republicans—representing 5.8% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Ohio, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 25 4 1 4.0% 51 18 4 7.8% 76 22 5 6.6%
    Senate 0 0 0 0.0% 10 2 0 0.0% 10 2 0 0.0%
    Total 25 4 1 4.0% 61 20 4 6.6% 86 24 5 5.8%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Ohio, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 47 6 1 2.1% 40 8 0 0.0% 87 14 1 1.1%
    2012 36 6 0 0.0% 62 8 1 1.6% 98 14 1 1.0%
    2014 31 4 1 3.2% 59 19 2 3.4% 90 23 3 3.3%
    2016 28 4 0 0.0% 58 10 1 1.7% 86 14 1 1.2%
    2018 25 6 0 0.0% 49 14 1 2.0% 74 20 1 1.4%
    2020 35 7 0 0.0% 57 7 1 1.8% 92 14 1 1.1%
    2022 24 6 1 4.2% 62 14 2 3.2% 86 20 3 3.5%
    2024 25 4 1 4.0% 61 20 4 6.6% 86 24 5 5.8%

    Oklahoma

    General election defeats

    There were 125 seats up for election in Oklahoma. Overall, 96 incumbents advanced to the general election, including 18 Democrats and 78 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Oklahoma, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 17 0 0.0% 67 0 0.0% 84 0 0.0%
    Senate 1 0 0.0% 11 0 0.0% 12 0 0.0%
    Total 18 0 0.0% 78 0 0.0% 96 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Oklahoma, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 40 6 15.0% 62 0 0.0% 102 6 5.9%
    2012 30 0 0.0% 71 0 0.0% 101 0 0.0%
    2014 25 0 0.0% 70 1 1.4% 95 1 1.1%
    2016 20 0 0.0% 61 0 0.0% 81 0 0.0%
    2018 22 3 13.6% 48 0 0.0% 70 3 4.3%
    2020 22 4 18.2% 85 0 0.0% 107 4 3.7%
    2022 21 1 4.8% 81 0 0.0% 102 1 1.0%
    2024 18 0 0.0% 78 0 0.0% 96 0 0.0%

    Primary defeats

    There were 125 seats up for election in Oklahoma. Overall, 103 incumbents filed for re-election, including 18 Democrats and 85 Republicans. Of that total, seven Republican incumbents lost in primaries, representing 6.8% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Oklahoma, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 17 1 0 0.0% 70 20 3 4.3% 87 21 3 3.4%
    Senate 1 0 0 0.0% 15 8 4 26.7% 16 8 4 25.0%
    Total 18 1 0 0.0% 85 28 7 8.2% 103 29 7 6.8%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Oklahoma, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 41 5 1 2.4% 62 7 0 0.0% 103 12 1 1.0%
    2012 30 2 0 0.0% 72 17 1 1.4% 102 19 1 1.0%
    2014 25 1 0 0.0% 70 12 0 0.0% 95 13 0 0.0%
    2016 20 4 0 0.0% 64 24 3 4.7% 84 28 3 3.6%
    2018 22 2 0 0.0% 60 35 12 20.0% 82 37 12 14.6%
    2020 23 3 1 4.3% 91 30 6 6.6% 114 33 7 6.1%
    2022 21 2 0 0.0% 84 24 3 3.6% 105 26 3 2.9%
    2024 18 1 0 0.0% 85 28 7 8.2% 103 29 7 6.8%

    Oregon

    General election defeats

    There were 75 seats up for election in Oregon. Overall, 59 incumbents advanced to the general election, including 35 Democrats and 24 Republicans. Of that total, 1 incumbent Republican lost in general elections, representing 1.7% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Oregon, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 30 0 0.0% 21 1 4.8% 51 1 2.0%
    Senate 5 0 0.0% 3 0 0.0% 8 0 0.0%
    Total 35 0 0.0% 24 1 4.2% 59 1 1.7%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Oregon, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 43 4 9.3% 25 0 0.0% 68 4 5.9%
    2012 30 0 0.0% 34 4 11.8% 64 4 6.3%
    2014 38 0 0.0% 21 2 9.5% 59 2 3.4%
    2016 30 0 0.0% 28 0 0.0% 58 0 0.0%
    2018 41 0 0.0% 23 3 13.0% 64 3 4.7%
    2020 34 0 0.0% 26 1 3.8% 60 1 1.7%
    2022 33 0 0.0% 17 1 5.9% 50 1 2.0%
    2024 35 0 0.0% 24 1 4.2% 59 1 1.7%

    Primary defeats

    There were 75 seats up for election in Oregon. Overall, 61 incumbents filed for re-election, including 35 Democrats and 26 Republicans. Of that total, two Republican incumbents lost in primaries, representing 3.3% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Oregon, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 30 5 0 0.0% 23 5 2 8.7% 53 10 2 3.8%
    Senate 5 0 0 0.0% 3 1 0 0.0% 8 1 0 0.0%
    Total 35 5 0 0.0% 26 6 2 7.7% 61 11 2 3.3%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Oregon, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 44 2 0 0.0% 25 7 0 0.0% 69 9 0 0.0%
    2012 31 1 1 3.2% 35 3 1 2.9% 66 4 2 3.0%
    2014 38 3 0 0.0% 22 3 1 4.5% 60 6 1 1.7%
    2016 30 2 0 0.0% 28 2 0 0.0% 58 4 0 0.0%
    2018 42 4 1 2.4% 23 5 1 4.3% 65 9 2 3.1%
    2020 34 4 0 0.0% 26 1 0 0.0% 60 5 0 0.0%
    2022 34 4 1 2.9% 17 5 0 0.0% 51 9 1 2.0%
    2024 35 5 0 0.0% 26 6 2 7.7% 61 11 2 3.3%

    Pennsylvania

    General election defeats

    There were 228 seats up for election in Pennsylvania. Overall, 210 incumbents advanced to the general election, including 107 Democrats and 103 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 0.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Pennsylvania, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 98 0 0.0% 90 0 0.0% 188 0 0.0%
    Senate 9 1 11.1% 13 0 0.0% 22 1 4.5%
    Total 107 1 0.9% 103 0 0.0% 210 1 0.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Pennsylvania, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 101 9 8.9% 106 0 0.0% 207 9 4.3%
    2012 83 0 0.0% 113 1 0.9% 196 1 0.5%
    2014 90 4 4.4% 108 0 0.0% 198 4 2.0%
    2016 83 4 4.8% 122 2 1.6% 205 6 2.9%
    2018 78 2 2.6% 111 10 9.0% 189 12 6.3%
    2020 89 4 4.5% 113 1 0.9% 202 5 2.5%
    2022 88 1 1.1% 91 4 4.4% 179 5 2.8%
    2024 107 1 0.9% 103 0 0.0% 210 1 0.5%

    Primary defeats

    There were 228 seats up for election in Pennsylvania. Overall, 211 incumbents filed for re-election, including 106 Democrats and 105 Republicans. Of that total, three incumbents lost in primaries—one Democrat and two Republicans—representing 1.4% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Pennsylvania, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 97 8 1 1.0% 92 12 2 2.2% 189 20 3 1.6%
    Senate 9 0 0 0.0% 13 0 0 0.0% 22 0 0 0.0%
    Total 106 8 1 0.9% 105 12 2 1.9% 211 20 3 1.4%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Pennsylvania, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 100 20 0 0.0% 107 9 1 0.9% 207 29 1 0.5%
    2012 88 17 4 4.5% 115 15 1 0.9% 203 32 5 2.5%
    2014 95 30 5 5.3% 108 12 1 0.9% 203 42 6 3.0%
    2016 89 19 4 4.5% 120 9 0 0.0% 209 28 4 1.9%
    2018 82 14 3 3.7% 114 8 1 0.9% 196 22 4 2.0%
    2020 96 18 6 6.3% 113 10 0 0.0% 209 28 6 2.9%
    2022 92 20 4 4.3% 98 22 7 7.1% 190 42 11 5.8%
    2024 106 8 1 0.9% 105 12 2 1.9% 211 20 3 1.4%

    Rhode Island

    General election defeats

    There were 113 seats up for election in Rhode Island. Overall, 103 incumbents advanced to the general election, including 91 Democrats and 11 Republicans. Of that total, 1 incumbent Republican lost in general elections, representing 1.0% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Rhode Island, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 62 0 0.0% 6 0 0.0% 69 0 0.0%
    Senate 29 0 0.0% 5 1 20.0% 34 1 2.9%
    Total 91 0 0.0% 11 1 9.1% 103 1 1.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Rhode Island, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 79 4 5.1% 8 0 0.0% 88 4 4.5%
    2012 78 0 0.0% 15 4 26.7% 94 4 4.3%
    2014 92 7 7.6% 9 0 0.0% 102 7 6.9%
    2016 85 1 1.2% 13 1 7.7% 99 2 2.0%
    2018 83 1 1.2% 12 3 25.0% 95 4 4.2%
    2020 80 2 2.5% 13 0 0.0% 94 3 3.2%
    2022 82 1 1.2% 13 1 7.7% 95 2 2.1%
    2024 91 0 0.0% 11 1 9.1% 103 1 1.0%

    Primary defeats

    There were 113 seats up for election in Rhode Island. Overall, 104 incumbents filed for re-election, including 92 Democrats and 11 Republicans. Of that total, one Democratic incumbent lost in primaries, representing 1.0% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Rhode Island, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 63 9 1 1.6% 6 0 0 0.0% 70 9 1 1.4%
    Senate 29 3 0 0.0% 5 0 0 0.0% 34 3 0 0.0%
    Total 92 12 1 1.1% 11 0 0 0.0% 104 12 1 1.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Rhode Island, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 88 32 9 10.2% 9 2 1 11.1% 98 34 10 10.2%
    2012 84 24 6 7.1% 15 2 0 0.0% 100 26 6 6.0%
    2014 95 18 3 3.2% 9 0 0 0.0% 105 18 3 2.9%
    2016 91 18 6 6.6% 13 0 0 0.0% 105 18 6 5.7%
    2018 86 20 3 3.5% 12 0 0 0.0% 98 20 3 3.1%
    2020 90 26 10 11.1% 13 0 0 0.0% 104 26 10 9.6%
    2022 86 29 4 4.7% 13 1 0 0.0% 99 30 4 4.0%
    2024 92 12 1 1.1% 11 0 0 0.0% 104 12 1 1.0%

    South Carolina

    General election defeats

    There were 170 seats up for election in South Carolina. Overall, 143 incumbents advanced to the general election, including 45 Democrats and 98 Republicans. Of that total, 5 incumbent Democrats lost in general elections, representing 3.5% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in South Carolina, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 33 1 3.0% 73 0 0.0% 106 1 0.9%
    Senate 12 4 33.3% 25 0 0.0% 37 4 10.8%
    Total 45 5 11.1% 98 0 0.0% 143 5 3.5%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in South Carolina, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 48 3 6.3% 58 0 0.0% 106 3 2.8%
    2012 55 0 0.0% 89 2 2.2% 144 2 1.4%
    2014 41 0 0.0% 71 1 1.4% 112 1 0.9%
    2016 56 0 0.0% 88 0 0.0% 144 0 0.0%
    2018 39 1 2.6% 72 2 2.8% 111 3 2.7%
    2020 59 5 8.5% 95 0 0.0% 154 5 3.2%
    2022 39 5 12.8% 64 1 1.6% 103 6 5.8%
    2024 45 5 11.1% 98 0 0.0% 143 5 3.5%

    Primary defeats

    There were 170 seats up for election in South Carolina. Overall, 150 incumbents filed for re-election, including 46 Democrats and 104 Republicans. Of that total, seven incumbents lost in primaries—one Democrat and six Republicans—representing 4.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in South Carolina, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 33 9 0 0.0% 76 29 3 3.9% 109 38 3 2.8%
    Senate 13 7 1 7.7% 28 6 3 10.7% 41 13 4 9.8%
    Total 46 16 1 2.2% 104 35 6 5.8% 150 51 7 4.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in South Carolina, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 48 11 0 0.0% 64 15 5 7.8% 112 26 5 4.5%
    2012 57 7 2 3.5% 91 16 3 3.3% 148 23 5 3.4%
    2014 42 5 0 0.0% 73 15 2 2.7% 115 20 2 1.7%
    2016 57 14 1 1.8% 96 28 8 8.3% 153 42 9 5.9%
    2018 42 11 3 7.1% 74 25 2 2.7% 116 36 5 4.3%
    2020 59 14 1 1.7% 97 22 1 1.0% 156 36 2 1.3%
    2022 41 11 2 4.9% 70 23 6 8.6% 111 34 8 7.2%
    2024 46 16 1 2.2% 104 35 6 5.8% 150 51 7 4.7%

    South Dakota

    General election defeats

    There were 105 seats up for election in South Dakota. Overall, 58 incumbents advanced to the general election, including 8 Democrats and 50 Republicans. Of that total, 2 incumbent Democrats lost in general elections, representing 3.4% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in South Dakota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 5 1 20.0% 37 0 0.0% 42 1 2.4%
    Senate 3 1 33.3% 13 0 0.0% 16 1 6.3%
    Total 8 2 25.0% 50 0 0.0% 58 2 3.4%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in South Dakota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 25 9 36.0% 44 0 0.0% 69 9 13.0%
    2012 13 0 0.0% 53 4 7.5% 66 4 6.1%
    2014 16 2 12.5% 58 1 1.7% 74 3 4.1%
    2016 10 1 10.0% 50 1 2.0% 60 2 3.3%
    2018 9 1 11.1% 67 3 4.5% 76 4 5.3%
    2020 13 4 30.8% 59 0 0.0% 72 4 5.6%
    2022 7 1 14.3% 57 1 1.8% 64 2 3.1%
    2024 8 2 25.0% 50 0 0.0% 58 2 3.4%

    Primary defeats

    There were 105 seats up for election in South Dakota. Overall, 69 incumbents filed for re-election, including eight Democrats and 61 Republicans. Of that total, 11 Republican incumbents lost in primaries, representing 15.9% of incumbents who filed for re-election.'.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in South Dakota, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 5 0 0 0.0% 43 32 6 14.0% 48 32 6 12.5%
    Senate 3 1 0 0.0% 18 9 5 27.8% 21 10 5 23.8%
    Total 8 1 0 0.0% 61 41 11 18.0% 69 42 11 15.9%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in South Dakota, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 26 3 1 3.8% 45 4 0 0.0% 71 7 1 1.4%
    2012 15 3 1 6.7% 59 22 4 6.8% 74 25 5 6.8%
    2014 16 2 0 0.0% 58 15 0 0.0% 74 17 0 0.0%
    2016 10 0 0 0.0% 53 18 2 3.8% 63 18 2 3.2%
    2018 9 3 0 0.0% 70 17 0 0.0% 79 20 0 0.0%
    2020 14 2 0 0.0% 62 23 4 6.5% 76 25 4 5.3%
    2022 8 0 0 0.0% 63 35 5 7.9% 71 35 5 7.0%
    2024 8 1 0 0.0% 61 41 11 18.0% 69 42 11 15.9%

    Tennessee

    General election defeats

    There were 115 seats up for election in Tennessee. Overall, 103 incumbents advanced to the general election, including 24 Democrats and 79 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Tennessee, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 22 0 0.0% 68 0 0.0% 90 0 0.0%
    Senate 2 0 0.0% 11 0 0.0% 13 0 0.0%
    Total 24 0 0.0% 79 0 0.0% 103 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Tennessee, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 54 13 24.1% 49 0 0.0% 104 13 12.5%
    2012 25 1 4.0% 60 1 1.7% 86 2 2.3%
    2014 27 2 7.4% 69 0 0.0% 96 2 2.1%
    2016 25 1 4.0% 81 1 1.2% 106 2 1.9%
    2018 19 0 0.0% 66 1 1.5% 85 1 1.2%
    2020 25 0 0.0% 79 1 1.3% 105 2 1.9%
    2022 24 0 0.0% 72 0 0.0% 97 1 1.0%
    2024 24 0 0.0% 79 0 0.0% 103 0 0.0%

    Primary defeats

    There were 115 seats up for election in Tennessee. Overall, 107 incumbents filed for re-election, including 24 Democrats and 83 Republicans. Of that total, 4 incumbents lost in primaries—0 Democrats and 4 Republicans—representing 3.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Tennessee, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 22 7 0 0.0% 70 13 2 2.9% 92 20 2 2.2%
    Senate 2 1 0 0.0% 13 7 2 15.4% 15 8 2 13.3%
    Total 24 8 0 0.0% 83 20 4 4.8% 107 28 4 3.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Tennessee, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 54 6 0 0.0% 51 6 2 3.9% 106 12 2 1.9%
    2012 30 11 5 16.7% 67 24 7 10.4% 98 35 12 12.2%
    2014 29 5 2 6.9% 75 20 6 8.0% 104 25 8 7.7%
    2016 26 8 0 0.0% 83 26 2 2.4% 109 34 2 1.8%
    2018 20 7 1 5.0% 69 17 2 2.9% 89 24 3 3.4%
    2020 26 10 1 3.8% 82 17 3 3.7% 109 27 4 3.7%
    2022 24 5 0 0.0% 74 10 2 2.7% 99 15 2 2.0%
    2024 24 8 0 0.0% 83 20 4 4.8% 107 28 4 3.7%

    Texas

    General election defeats

    There were 165 seats up for election in Texas. Overall, 132 incumbents advanced to the general election, including 64 Democrats and 68 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 0.8% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Texas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 56 0 0.0% 62 0 0.0% 118 0 0.0%
    Senate 8 1 12.5% 6 0 0.0% 14 1 7.1%
    Total 64 1 1.6% 68 0 0.0% 132 1 0.8%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Texas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 71 21 29.6% 80 0 0.0% 151 21 13.9%
    2012 52 0 0.0% 83 3 3.6% 135 3 2.2%
    2014 55 2 3.6% 83 0 0.0% 138 2 1.4%
    2016 53 0 0.0% 90 4 4.4% 144 5 3.5%
    2018 52 0 0.0% 90 10 11.1% 142 10 7.0%
    2020 68 1 1.5% 83 2 2.4% 151 3 2.0%
    2022 67 0 0.0% 83 0 0.0% 150 0 0.0%
    2024 64 1 1.6% 68 0 0.0% 132 1 0.8%

    Primary defeats

    There were 165 seats up for election in Texas. Overall, 148 incumbents filed for re-election, including 65 Democrats and 83 Republicans. Of that total, 16 incumbents lost in primaries—one Democrat and 15 Republicans—representing 10.8% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Texas, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 57 12 1 1.8% 77 46 15 19.5% 134 58 16 11.9%
    Senate 8 2 0 0.0% 6 0 0 0.0% 14 2 0 0.0%
    Total 65 14 1 1.5% 83 46 15 18.1% 148 60 16 10.8%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Texas, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 75 8 4 5.3% 82 20 3 3.7% 157 28 7 4.5%
    2012 53 8 0 0.0% 94 43 11 11.7% 147 51 11 7.5%
    2014 57 11 2 3.5% 93 28 9 9.7% 150 39 11 7.3%
    2016 54 13 0 0.0% 95 33 5 5.3% 150 46 5 3.3%
    2018 57 17 5 8.8% 94 33 4 4.3% 151 50 9 6.0%
    2020 70 21 2 2.9% 85 11 2 2.4% 155 32 4 2.6%
    2022 68 13 1 1.5% 84 32 1 1.2% 152 45 2 1.3%
    2024 65 14 1 1.5% 83 46 15 18.1% 148 60 16 10.8%

    Utah

    General election defeats

    There were 89 seats up for election in Utah. Overall, 71 incumbents advanced to the general election, including 12 Democrats and 59 Republicans. Of that total, 1 incumbent Democrat lost in general elections, representing 1.4% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Utah, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 10 1 10.0% 49 0 0.0% 59 1 1.7%
    Senate 2 0 0.0% 10 0 0.0% 12 0 0.0%
    Total 12 1 8.3% 59 0 0.0% 71 1 1.4%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Utah, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 27 6 22.2% 52 0 0.0% 79 6 7.6%
    2012 15 1 6.7% 55 1 1.8% 70 2 2.9%
    2014 13 1 7.7% 61 0 0.0% 74 1 1.4%
    2016 13 1 7.7% 63 1 1.6% 76 2 2.6%
    2018 14 0 0.0% 53 1 1.9% 67 1 1.5%
    2020 15 0 0.0% 59 1 1.7% 74 1 1.4%
    2022 16 2 12.5% 59 0 0.0% 76 3 3.9%
    2024 12 1 8.3% 59 0 0.0% 71 1 1.4%

    Primary defeats

    There were 89 seats up for election in Utah. Overall, 74 incumbents filed for re-election, including 14 Democrats and 60 Republicans. Of that total, three incumbents lost in primaries—two Democrats and one Republican—representing 4.1% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Utah, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 12 1 2 16.7% 50 7 1 2.0% 62 8 3 4.8%
    Senate 2 0 0 0.0% 10 4 0 0.0% 12 4 0 0.0%
    Total 14 1 2 14.3% 60 11 1 1.7% 74 12 3 4.1%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Utah, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 27 1 0 0.0% 54 8 2 3.7% 81 9 2 2.5%
    2012 17 2 2 11.8% 61 12 6 9.8% 78 14 8 10.3%
    2014 13 0 0 0.0% 64 4 3 4.7% 77 4 3 3.9%
    2016 13 0 0 0.0% 63 6 3 4.8% 76 6 3 3.9%
    2018 14 0 0 0.0% 51 3 0 0.0% 65 3 0 0.0%
    2020 15 0 0 0.0% 62 12 3 4.8% 77 12 3 3.9%
    2022 18 2 2 11.1% 64 13 5 7.8% 82 15 7 8.5%
    2024 14 1 2 14.3% 60 11 1 1.7% 74 12 3 4.1%

    Vermont

    General election defeats

    There were 180 seats up for election in Vermont. Overall, 139 incumbents advanced to the general election, including 102 Democrats and 34 Republicans. Of that total, 18 incumbent Democrats lost in general elections, representing 12.9% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Vermont, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 84 14 16.7% 27 0 0.0% 114 14 12.3%
    Senate 18 4 22.2% 7 0 0.0% 25 4 16.0%
    Total 102 18 17.6% 34 0 0.0% 139 18 12.9%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Vermont, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 106 4 3.8% 47 2 4.3% 158 6 3.8%
    2012 106 3 2.8% 45 3 6.7% 155 6 3.9%
    2014 105 11 10.5% 44 0 0.0% 152 11 7.2%
    2016 88 6 6.8% 57 4 7.0% 151 10 6.6%
    2018 91 1 1.1% 44 6 13.6% 145 10 6.9%
    2020 104 5 4.8% 44 1 2.3% 156 10 6.4%
    2022 86 1 1.2% 35 3 8.6% 123 4 3.3%
    2024 102 18 17.6% 34 0 0.0% 139 18 12.9%

    Primary defeats

    There were 180 seats up for election in Vermont. Overall, 140 incumbents filed for re-election, including 103 Democrats and 34 Republicans. Of that total, one Democratic incumbent lost in primaries, representing 0.7% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Vermont, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 84 8 0 0.0% 27 1 0 0.0% 114 9 0 0.0%
    Senate 19 11 1 0.0% 7 0 0 0.0% 26 11 1 3.8%
    Total 103 19 1 1.0% 34 1 0 0.0% 140 20 1 0.7%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Vermont, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 107 8 0 0.0% 47 5 0 0.0% 159 13 0 0.0%
    2012 105 11 0 0.0% 45 1 0 0.0% 155 12 0 0.0%
    2014 105 5 0 0.0% 45 3 1 2.2% 153 8 1 0.7%
    2016 88 23 0 0.0% 58 4 1 1.7% 152 27 1 0.7%
    2018 88 15 2 2.3% 44 4 1 2.3% 148 19 3 2.0%
    2020 106 22 2 1.9% 44 4 0 0.0% 158 26 2 1.3%
    2022 87 14 1 1.1% 36 4 1 2.8% 125 18 2 1.6%
    2024 103 19 1 1.0% 34 1 0 0.0% 140 20 1 0.7%

    Washington

    General election defeats

    There were 123 seats up for election in Washington. Overall, 97 incumbents advanced to the general election, including 61 Democrats and 36 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Washington, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 53 0 0.0% 27 0 0.0% 80 0 0.0%
    Senate 8 0 0.0% 9 0 0.0% 17 0 0.0%
    Total 61 0 0.0% 36 0 0.0% 97 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Washington, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 64 8 12.5% 38 1 2.6% 102 9 8.8%
    2012 53 1 1.9% 44 2 4.5% 97 3 3.1%
    2014 63 4 6.3% 47 0 0.0% 110 4 3.6%
    2016 51 0 0.0% 51 3 5.9% 102 3 2.9%
    2018 58 1 1.7% 46 8 17.4% 104 9 8.7%
    2020 62 3 4.8% 45 2 4.4% 107 5 4.7%
    2022 59 0 0.0% 37 4 10.8% 96 4 4.2%
    2024 61 0 0.0% 36 0 0.0% 97 0 0.0%

    Primary defeats

    There were 123 seats up for election in Washington. Overall, 97 incumbents filed for re-election, including 61 Democrats and 36 Republicans. No incumbents who filed for re-election lost in primaries.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Washington, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 53 14 0 0.0% 27 6 0 0.0% 80 20 0 0.0%
    Senate 8 1 0 0.0% 9 3 0 0.0% 17 4 0 0.0%
    Total 61 15 0 0.0% 36 9 0 0.0% 97 24 0 0.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Washington, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 65 21 1 1.5% 38 3 0 0.0% 103 24 1 1.0%
    2012 53 10 0 0.0% 45 5 1 2.2% 98 15 1 1.0%
    2014 63 15 0 0.0% 48 8 1 2.1% 111 23 1 0.9%
    2016 52 16 1 1.9% 51 16 0 0.0% 103 32 1 1.0%
    2018 59 16 1 1.7% 47 18 1 2.1% 106 34 2 1.9%
    2020 62 25 0 0.0% 45 13 0 0.0% 107 38 0 0.0%
    2022 59 22 0 0.0% 37 9 0 0.0% 96 31 0 0.0%
    2024 61 15 0 0.0% 36 9 0 0.0% 97 24 0 0.0%

    West Virginia

    General election defeats

    There were 117 seats up for election in West Virginia. Overall, 90 incumbents advanced to the general election, including 8 Democrats and 82 Republicans. No incumbents who advanced to the general election lost.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in West Virginia, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 8 0 0.0% 72 0 0.0% 80 0 0.0%
    Senate 0 0 10 0 0.0% 10 0 0.0%
    Total 8 0 0.0% 82 0 0.0% 90 0 0.0%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in West Virginia, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 74 5 6.8% 25 0 0.0% 99 5 5.1%
    2012 64 7 10.9% 32 1 3.1% 96 8 8.3%
    2014 54 22 40.7% 44 1 2.3% 98 23 23.5%
    2016 34 8 23.5% 56 6 10.7% 90 14 15.6%
    2018 37 4 10.8% 56 9 16.1% 94 14 14.9%
    2020 33 11 33.3% 51 0 0.0% 84 11 13.1%
    2022 20 8 40.0% 68 2 2.9% 88 10 11.4%
    2024 8 0 0.0% 82 0 0.0% 90 0 0.0%

    Primary defeats

    There were 117 seats up for election in West Virginia. Overall, 98 incumbents filed for re-election, including 8 Democrats and 90 Republicans. Of that total, 8 Republican incumbents lost in primaries, representing 8.2% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in West Virginia, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 8 0 0 0.0% 76 23 4 5.3% 84 23 4 4.8%
    Senate 0 0 0 0.0% 14 7 4 28.6% 14 7 4 28.6%
    Total 8 0 0 0.0% 90 30 8 8.9% 98 30 8 8.2%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in West Virginia, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 76 46 2 2.6% 27 6 1 3.7% 103 52 3 2.9%
    2012 66 37 2 3.0% 32 8 0 0.0% 98 45 2 2.0%
    2014 60 19 6 10.0% 46 15 1 2.2% 106 34 7 6.6%
    2016 35 20 1 2.9% 58 18 1 1.7% 93 38 2 2.2%
    2018 38 15 1 2.6% 60 25 4 6.7% 99 40 5 5.1%
    2020 33 14 0 0.0% 60 31 10 16.7% 93 45 10 10.8%
    2022 22 5 2 9.1% 76 31 9 11.8% 98 36 11 11.2%
    2024 8 0 0 0.0% 90 30 8 8.9% 98 30 8 8.2%

    Wisconsin

    General election defeats

    There were 115 seats up for election in Wisconsin. Overall, 85 incumbents advanced to the general election, including 27 Democrats and 58 Republicans. Of that total, 6 incumbent Republicans lost in general elections, representing 7.1% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Wisconsin, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 22 0 0.0% 50 4 8.0% 72 4 5.6%
    Senate 5 0 0.0% 8 2 25.0% 13 2 15.4%
    Total 27 0 0.0% 58 6 10.3% 85 6 7.1%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Wisconsin, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 51 13 25.5% 40 0 0.0% 92 13 14.1%
    2012 34 2 5.9% 58 3 5.2% 92 5 5.4%
    2014 36 3 8.3% 51 0 0.0% 87 3 3.4%
    2016 39 2 5.1% 63 0 0.0% 102 2 2.0%
    2018 35 1 2.9% 63 0 0.0% 98 1 1.0%
    2020 32 1 3.1% 62 2 3.2% 94 3 3.2%
    2022 31 1 3.2% 55 0 0.0% 86 1 1.2%
    2024 27 0 0.0% 58 6 10.3% 85 6 7.1%

    Primary defeats

    There were 115 seats up for election in Wisconsin. Overall, 89 incumbents filed for re-election, including 27 Democrats and 62 Republicans. Of that total, four Republican incumbents lost in primaries, representing 4.5% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Wisconsin, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 22 4 0 0.0% 54 22 4 7.4% 76 26 4 5.3%
    Senate 5 1 0 0.0% 8 1 0 0.0% 13 2 0 0.0%
    Total 27 5 0 0.0% 62 23 4 6.5% 89 28 4 4.5%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Wisconsin, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 52 6 1 1.9% 40 7 0 0.0% 93 13 1 1.1%
    2012 36 9 2 5.6% 58 6 0 0.0% 94 15 2 2.1%
    2014 36 2 0 0.0% 51 1 0 0.0% 87 3 0 0.0%
    2016 39 8 0 0.0% 63 0 0 0.0% 102 8 0 0.0%
    2018 37 3 2 5.4% 63 1 0 0.0% 100 4 2 2.0%
    2020 33 5 1 3.0% 62 4 0 0.0% 95 9 1 1.1%
    2022 31 0 0 0.0% 55 9 0 0.0% 86 9 0 0.0%
    2024 27 5 0 0.0% 62 23 4 6.5% 89 28 4 4.5%

    Wyoming

    General election defeats

    There were 77 seats up for election in Wyoming. Overall, 47 incumbents advanced to the general election, including 5 Democrats and 42 Republicans. Of that total, 1 incumbent Republican lost in general elections, representing 2.1% of incumbents who advanced to the general election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Wyoming, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    House 5 0 0.0% 32 1 3.1% 37 1 2.7%
    Senate 0 0 10 0 0.0% 10 0 0.0%
    Total 5 0 0.0% 42 1 2.4% 47 1 2.1%

    Historical general election defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in general elections in Wyoming, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Running Def. % Running Def. % Running Def. %
    2010 18 7 38.9% 42 0 0.0% 60 7 11.7%
    2012 9 1 11.1% 48 0 0.0% 57 1 1.8%
    2014 9 0 0.0% 51 1 2.0% 60 1 1.7%
    2016 9 2 22.2% 44 1 2.3% 53 3 5.7%
    2018 9 2 22.2% 53 2 3.8% 62 4 6.5%
    2020 7 3 42.9% 46 0 0.0% 54 3 5.6%
    2022 7 2 28.6% 39 0 0.0% 47 3 6.4%
    2024 5 0 0.0% 42 1 2.4% 47 1 2.1%

    Primary defeats

    There were 77 seats up for election in Wyoming. Overall, 61 incumbents filed for re-election, including five Democrats and 56 Republicans. Of that total, 14 Republican incumbents lost in primaries, representing 23.0% of incumbents who filed for re-election.

    Statistics from 2024 are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Wyoming, 2024
    Chamber
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    House 5 0 0 0.0% 46 33 14 30.4% 51 33 14 27.5%
    Senate 0 0 0 0.0% 10 7 0 0.0% 10 7 0 0.0%
    Total 5 0 0 0.0% 56 40 14 25.0% 61 40 14 23.0%

    Historical primary defeat statistics are shown below. Hover over column headings to learn more about their contents.

    Incumbents defeated in primaries in Wyoming, 2010-2024
    Year
    Democratic incumbents Republican incumbents Total incumbents
    Filed Cont. Def. % Filed Cont. Def. % Filed Cont. Def. %
    2010 18 0 0 0.0% 42 15 0 0.0% 60 15 0 0.0%
    2012 9 0 0 0.0% 51 21 3 5.9% 60 21 3 5.0%
    2014 9 0 0 0.0% 55 26 4 7.3% 64 26 4 6.3%
    2016 9 0 0 0.0% 46 20 3 6.5% 55 20 3 5.5%
    2018 9 0 0 0.0% 56 19 3 5.4% 65 19 3 4.6%
    2020 7 1 0 0.0% 52 30 6 11.5% 60 31 6 10.0%
    2022 7 0 0 0.0% 49 28 10 20.4% 57 28 10 17.5%
    2024 5 0 0 0.0% 56 40 14 25.0% 61 40 14 23.0%

    See also

    Footnotes

    1. Incumbents may also be defeated in other nominating contests such as conventions. Ballotpedia counts an incumbent defeat in a convention as a defeat in a primary.