Republicans enter the 2026 midterms defending a 53-47 Senate majority and 22 seats against Democrats' 13, but trader consensus clusters tightly around 47-51 Republican seats due to historical midterm losses for the president's party and recent Democratic polling edges in battlegrounds like Texas, North Carolina, and New Hampshire. A Koch-backed super PAC warned on April 30 that the GOP majority is at risk, echoing concerns over divisive primaries—such as Texas's May 26 runoff between John Cornyn and Ken Paxton, where polls show mixed results and potential for a weakened nominee. Strong Democratic fundraising and toss-up ratings in Georgia, Michigan, and Maine keep outcomes uncertain; shifts could arise from primary resolutions, economic trends, or presidential approval ratings ahead of November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$2,131,037 Vol.
$2,131,037 Vol.
≤47
24%
48
12%
49
16%
50
19%
51
18%
52
7%
53
4%
54
1%
55
1%
56
1%
57+
2%
$2,131,037 Vol.
$2,131,037 Vol.
≤47
$57,458 Vol.
24%
48
$20,033 Vol.
12%
49
$14,796 Vol.
16%
50
$64,977 Vol.
19%
51
$164,089 Vol.
18%
52
$510,278 Vol.
7%
53
$16,733 Vol.
4%
54
$710,221 Vol.
1%
55
$394,752 Vol.
1%
56
$142,919 Vol.
1%
57+
$34,781 Vol.
2%
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.Republicans enter the 2026 midterms defending a 53-47 Senate majority and 22 seats against Democrats' 13, but trader consensus clusters tightly around 47-51 Republican seats due to historical midterm losses for the president's party and recent Democratic polling edges in battlegrounds like Texas, North Carolina, and New Hampshire. A Koch-backed super PAC warned on April 30 that the GOP majority is at risk, echoing concerns over divisive primaries—such as Texas's May 26 runoff between John Cornyn and Ken Paxton, where polls show mixed results and potential for a weakened nominee. Strong Democratic fundraising and toss-up ratings in Georgia, Michigan, and Maine keep outcomes uncertain; shifts could arise from primary resolutions, economic trends, or presidential approval ratings ahead of November 3.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Market Opened: Dec 18, 2025, 8:55 PM ET
Volume
$2,131,037Market Opened
Dec 18, 2025, 8:55 PM ETResolver
0x2F5e3684c...The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.Republicans enter the 2026 midterms defending a 53-47 Senate majority and 22 seats against Democrats' 13, but trader consensus clusters tightly around 47-51 Republican seats due to historical midterm losses for the president's party and recent Democratic polling edges in battlegrounds like Texas, North Carolina, and New Hampshire. A Koch-backed super PAC warned on April 30 that the GOP majority is at risk, echoing concerns over divisive primaries—such as Texas's May 26 runoff between John Cornyn and Ken Paxton, where polls show mixed results and potential for a weakened nominee. Strong Democratic fundraising and toss-up ratings in Georgia, Michigan, and Maine keep outcomes uncertain; shifts could arise from primary resolutions, economic trends, or presidential approval ratings ahead of November 3.
The 2026 midterm elections are scheduled to be held on November 3, 2026.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
This market will resolve according to the number of seats held by the Republican Party in the US Senate as a result of the 2026 midterm elections.
This market will resolve based on the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources.
If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. 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 at the time all of the Senate elections are conclusively called by this market's resolution sources.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all Senate elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Volume
$2,131,037Market Opened
Dec 18, 2025, 8:55 PM ETResolver
0x2F5e3684c...Republicans enter the 2026 midterms defending a 53-47 Senate majority and 22 seats against Democrats' 13, but trader consensus clusters tightly around 47-51 Republican seats due to historical midterm losses for the president's party and recent Democratic polling edges in battlegrounds like Texas, North Carolina, and New Hampshire. A Koch-backed super PAC warned on April 30 that the GOP majority is at risk, echoing concerns over divisive primaries—such as Texas's May 26 runoff between John Cornyn and Ken Paxton, where polls show mixed results and potential for a weakened nominee. Strong Democratic fundraising and toss-up ratings in Georgia, Michigan, and Maine keep outcomes uncertain; shifts could arise from primary resolutions, economic trends, or presidential approval ratings ahead of November 3.
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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