Democratic Senate incumbents seeking renomination in 2026 have prevailed in every primary held to date, producing the market's overwhelming consensus around zero losses. Incumbents including John Hickenlooper in Colorado, Edward Markey in Massachusetts, Cory Booker in New Jersey, and Ben Ray Luján in New Mexico defeated challengers, often by comfortable margins even in contested races. Remaining Democratic-held seats feature limited or no credible opposition, with open-seat contests in states such as Illinois and Minnesota removing any incumbent risk. A late upset would require an unforeseen surge by a well-funded challenger in one of the final primaries, such as Rhode Island or Delaware, though current polling and fundraising patterns show no such momentum.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow many Democratic Senate Incumbents will not win their Primary?
0 99.3%
1 <1%
2 <1%
$30,346 Vol.
$30,346 Vol.
0
99%
1
1%
2
<1%
0 99.3%
1 <1%
2 <1%
$30,346 Vol.
$30,346 Vol.
0
99%
1
1%
2
<1%
This market will resolve according to the number of Democratic Senate 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 Senate 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. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus prior to the conclusion of the relevant nominating election.
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, 2:52 PM ET
Resolver
0x2F5e3684c...This market will resolve according to the number of Democratic Senate 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 Senate 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. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus prior to the conclusion of the relevant nominating election.
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.
Resolver
0x2F5e3684c...Democratic Senate incumbents seeking renomination in 2026 have prevailed in every primary held to date, producing the market's overwhelming consensus around zero losses. Incumbents including John Hickenlooper in Colorado, Edward Markey in Massachusetts, Cory Booker in New Jersey, and Ben Ray Luján in New Mexico defeated challengers, often by comfortable margins even in contested races. Remaining Democratic-held seats feature limited or no credible opposition, with open-seat contests in states such as Illinois and Minnesota removing any incumbent risk. A late upset would require an unforeseen surge by a well-funded challenger in one of the final primaries, such as Rhode Island or Delaware, though current polling and fundraising patterns show no such momentum.
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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