Several Democratic House incumbents have already lost primaries in 2026, with reports confirming seven defeats amid progressive challenges and generational shifts in states including New York. These upsets, driven by organized opposition on issues like foreign policy and party direction, have elevated turnover expectations. Additional vulnerable incumbents face contests in remaining primary windows, including races in Connecticut, Michigan, and Colorado, where polling and fundraising signal competitive dynamics. Traders position the 10-12 range as the consensus outcome because the pace of defeats exceeds historical averages outside redistricting cycles, while the volume of safe-seat challenges and open seats from retirements supports further losses before primaries conclude.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated10-12 59.0%
7-9 21.3%
13-15 3.6%
<3 <1%
$15,939 Vol.
$15,939 Vol.
<3
<1%
4-6
<1%
7-9
28%
10-12
65%
13-15
4%
>15
<1%
10-12 59.0%
7-9 21.3%
13-15 3.6%
<3 <1%
$15,939 Vol.
$15,939 Vol.
<3
$745 Vol.
<1%
4-6
$1,102 Vol.
<1%
7-9
$8,383 Vol.
28%
10-12
$3,293 Vol.
65%
13-15
$1,320 Vol.
4%
>15
$1,096 Vol.
<1%
The 2026 midterm elections are scheduled to be held on November 3, 2026, with congressional primaries running from March through September.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.Several Democratic House incumbents have already lost primaries in 2026, with reports confirming seven defeats amid progressive challenges and generational shifts in states including New York. These upsets, driven by organized opposition on issues like foreign policy and party direction, have elevated turnover expectations. Additional vulnerable incumbents face contests in remaining primary windows, including races in Connecticut, Michigan, and Colorado, where polling and fundraising signal competitive dynamics. Traders position the 10-12 range as the consensus outcome because the pace of defeats exceeds historical averages outside redistricting cycles, while the volume of safe-seat challenges and open seats from retirements supports further losses before primaries conclude.
The 2026 midterm elections are scheduled to be held on November 3, 2026, with congressional primaries running from March through September.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
Market Opened: Jan 14, 2026, 2:55 PM ET
Volume
$15,939Market Opened
Jan 14, 2026, 2:55 PM ETResolver
0x2F5e3684c...The 2026 midterm elections are scheduled to be held on November 3, 2026, with congressional primaries running from March through September.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.Several Democratic House incumbents have already lost primaries in 2026, with reports confirming seven defeats amid progressive challenges and generational shifts in states including New York. These upsets, driven by organized opposition on issues like foreign policy and party direction, have elevated turnover expectations. Additional vulnerable incumbents face contests in remaining primary windows, including races in Connecticut, Michigan, and Colorado, where polling and fundraising signal competitive dynamics. Traders position the 10-12 range as the consensus outcome because the pace of defeats exceeds historical averages outside redistricting cycles, while the volume of safe-seat challenges and open seats from retirements supports further losses before primaries conclude.
The 2026 midterm elections are scheduled to be held on November 3, 2026, with congressional primaries running from March through September.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
This market will resolve according to the number of Democratic House incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all House nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election.
Members of the House of Representatives who are "delegates” or “resident commissioners” not chosen by the people of a state are not included for purposes of resolving this market.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
Volume
$15,939Market Opened
Jan 14, 2026, 2:55 PM ETResolver
0x2F5e3684c...Several Democratic House incumbents have already lost primaries in 2026, with reports confirming seven defeats amid progressive challenges and generational shifts in states including New York. These upsets, driven by organized opposition on issues like foreign policy and party direction, have elevated turnover expectations. Additional vulnerable incumbents face contests in remaining primary windows, including races in Connecticut, Michigan, and Colorado, where polling and fundraising signal competitive dynamics. Traders position the 10-12 range as the consensus outcome because the pace of defeats exceeds historical averages outside redistricting cycles, while the volume of safe-seat challenges and open seats from retirements supports further losses before primaries conclude.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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