Trader consensus prices a narrow Republican Senate majority after the 2026 midterms, with outcomes clustered around 47–51 seats reflecting a toss-up for control from the current 53–47 GOP edge. Recent polling shifts, including Emerson's New Hampshire tie between Rep. Chris Pappas (D) and Republicans, Data for Progress toss-ups in Alaska favoring Rep. Mary Peltola (D) over Sen. Dan Sullivan (R), and University of Texas surveys showing Democrat Matthew Talarico leading Texas Republicans, have tightened battlegrounds like Michigan (open after Gary Peters' retirement), Ohio's special election (Jon Husted vs. Sherrod Brown), Iowa (Joni Ernst open), and Montana (Steve Daines' late withdrawal). Midterm dynamics favor Democrats as the out-party amid President Trump's sub-40% approval on inflation, but their narrow flip path—needing four net gains for 51 seats—keeps odds balanced; primary results in June, economic data, or scandals could tip key races and create separation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$2,287,016 Vol.
$2,287,016 Vol.
≤47
26%
48
11%
49
16%
50
19%
51
17%
52
6%
53
4%
54
1%
55
1%
56
2%
57+
3%
$2,287,016 Vol.
$2,287,016 Vol.
≤47
$76,208 Vol.
26%
48
$29,265 Vol.
11%
49
$25,588 Vol.
16%
50
$78,785 Vol.
19%
51
$175,236 Vol.
17%
52
$523,870 Vol.
6%
53
$31,486 Vol.
4%
54
$726,179 Vol.
1%
55
$412,028 Vol.
1%
56
$157,531 Vol.
2%
57+
$50,854 Vol.
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.Trader consensus prices a narrow Republican Senate majority after the 2026 midterms, with outcomes clustered around 47–51 seats reflecting a toss-up for control from the current 53–47 GOP edge. Recent polling shifts, including Emerson's New Hampshire tie between Rep. Chris Pappas (D) and Republicans, Data for Progress toss-ups in Alaska favoring Rep. Mary Peltola (D) over Sen. Dan Sullivan (R), and University of Texas surveys showing Democrat Matthew Talarico leading Texas Republicans, have tightened battlegrounds like Michigan (open after Gary Peters' retirement), Ohio's special election (Jon Husted vs. Sherrod Brown), Iowa (Joni Ernst open), and Montana (Steve Daines' late withdrawal). Midterm dynamics favor Democrats as the out-party amid President Trump's sub-40% approval on inflation, but their narrow flip path—needing four net gains for 51 seats—keeps odds balanced; primary results in June, economic data, or scandals could tip key races and create separation.
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
$2,287,016Market 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.Trader consensus prices a narrow Republican Senate majority after the 2026 midterms, with outcomes clustered around 47–51 seats reflecting a toss-up for control from the current 53–47 GOP edge. Recent polling shifts, including Emerson's New Hampshire tie between Rep. Chris Pappas (D) and Republicans, Data for Progress toss-ups in Alaska favoring Rep. Mary Peltola (D) over Sen. Dan Sullivan (R), and University of Texas surveys showing Democrat Matthew Talarico leading Texas Republicans, have tightened battlegrounds like Michigan (open after Gary Peters' retirement), Ohio's special election (Jon Husted vs. Sherrod Brown), Iowa (Joni Ernst open), and Montana (Steve Daines' late withdrawal). Midterm dynamics favor Democrats as the out-party amid President Trump's sub-40% approval on inflation, but their narrow flip path—needing four net gains for 51 seats—keeps odds balanced; primary results in June, economic data, or scandals could tip key races and create separation.
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
$2,287,016Market Opened
Dec 18, 2025, 8:55 PM ETResolver
0x2F5e3684c...Trader consensus prices a narrow Republican Senate majority after the 2026 midterms, with outcomes clustered around 47–51 seats reflecting a toss-up for control from the current 53–47 GOP edge. Recent polling shifts, including Emerson's New Hampshire tie between Rep. Chris Pappas (D) and Republicans, Data for Progress toss-ups in Alaska favoring Rep. Mary Peltola (D) over Sen. Dan Sullivan (R), and University of Texas surveys showing Democrat Matthew Talarico leading Texas Republicans, have tightened battlegrounds like Michigan (open after Gary Peters' retirement), Ohio's special election (Jon Husted vs. Sherrod Brown), Iowa (Joni Ernst open), and Montana (Steve Daines' late withdrawal). Midterm dynamics favor Democrats as the out-party amid President Trump's sub-40% approval on inflation, but their narrow flip path—needing four net gains for 51 seats—keeps odds balanced; primary results in June, economic data, or scandals could tip key races and create separation.
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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