Chris Pappas, the Democratic representative from New Hampshire’s First District, has emerged as the clear front-runner following Jeanne Shaheen’s March 2025 retirement announcement, dominating recent primary polling with leads exceeding 30 points. On the Republican side, former Senator John Sununu holds the nomination edge over Scott Brown amid a primary set for September 8. General election surveys from Saint Anselm College and others show Pappas ahead by double digits in head-to-head matchups, supported by substantial fundraising and the state’s partisan voting index. Traders price the Democratic outcome at 89.5 percent on the strength of these polling trends, candidate resources, and New Hampshire’s recent electoral patterns favoring Democrats in open Senate contests, though the race remains subject to shifts before November 2026.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$73,775 Vol.
$73,775 Vol.
Nov 2, 2026
Democrat
90%
Republican
11%
$73,775 Vol.
$73,775 Vol.
Nov 2, 2026
Democrat
$50,389 Vol.
90%
Republican
$23,387 Vol.
11%
This market will resolve according to the winner of the 2026 midterm New Hampshire U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Chris Pappas, the Democratic representative from New Hampshire’s First District, has emerged as the clear front-runner following Jeanne Shaheen’s March 2025 retirement announcement, dominating recent primary polling with leads exceeding 30 points. On the Republican side, former Senator John Sununu holds the nomination edge over Scott Brown amid a primary set for September 8. General election surveys from Saint Anselm College and others show Pappas ahead by double digits in head-to-head matchups, supported by substantial fundraising and the state’s partisan voting index. Traders price the Democratic outcome at 89.5 percent on the strength of these polling trends, candidate resources, and New Hampshire’s recent electoral patterns favoring Democrats in open Senate contests, though the race remains subject to shifts before November 2026.
This market will resolve according to the winner of the 2026 midterm New Hampshire U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 5:04 PM ET
Volume
$73,775End Date
Nov 3, 2026Market Opened
Oct 13, 2025, 5:04 PM ETResolver
0x2F5e3684c...This market will resolve according to the winner of the 2026 midterm New Hampshire U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Chris Pappas, the Democratic representative from New Hampshire’s First District, has emerged as the clear front-runner following Jeanne Shaheen’s March 2025 retirement announcement, dominating recent primary polling with leads exceeding 30 points. On the Republican side, former Senator John Sununu holds the nomination edge over Scott Brown amid a primary set for September 8. General election surveys from Saint Anselm College and others show Pappas ahead by double digits in head-to-head matchups, supported by substantial fundraising and the state’s partisan voting index. Traders price the Democratic outcome at 89.5 percent on the strength of these polling trends, candidate resources, and New Hampshire’s recent electoral patterns favoring Democrats in open Senate contests, though the race remains subject to shifts before November 2026.
This market will resolve according to the winner of the 2026 midterm New Hampshire U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Volume
$73,775End Date
Nov 3, 2026Market Opened
Oct 13, 2025, 5:04 PM ETResolver
0x2F5e3684c...Chris Pappas, the Democratic representative from New Hampshire’s First District, has emerged as the clear front-runner following Jeanne Shaheen’s March 2025 retirement announcement, dominating recent primary polling with leads exceeding 30 points. On the Republican side, former Senator John Sununu holds the nomination edge over Scott Brown amid a primary set for September 8. General election surveys from Saint Anselm College and others show Pappas ahead by double digits in head-to-head matchups, supported by substantial fundraising and the state’s partisan voting index. Traders price the Democratic outcome at 89.5 percent on the strength of these polling trends, candidate resources, and New Hampshire’s recent electoral patterns favoring Democrats in open Senate contests, though the race remains subject to shifts before November 2026.
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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