Democratic Rep. Chris Pappas holds a commanding lead in trader consensus for New Hampshire's open Senate seat, reflecting his frontrunner status in the Democratic primary, substantial fundraising advantage reported in April FEC filings, and favorable showings in recent polls like the April UNH survey where he leads general election matchups against Republican contenders. Incumbent Jeanne Shaheen's March 2025 retirement announcement created the vacancy, drawing former Sen. John Sununu—who leads the GOP primary per March Emerson (48%) and April UNH data—as the top Republican threat, though historical losses by Sununu and Scott Brown to Shaheen temper optimism. With primaries on September 8, Cook Political rates it Lean Democratic amid a competitive but Democrat-tilted landscape in this swing state.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$25,310 Vol.
$25,310 Vol.

Democrat
83%

Republican
17%
$25,310 Vol.
$25,310 Vol.

Democrat
83%

Republican
17%
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
Resolver
0x2F5e3684c...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.
Resolver
0x2F5e3684c...Democratic Rep. Chris Pappas holds a commanding lead in trader consensus for New Hampshire's open Senate seat, reflecting his frontrunner status in the Democratic primary, substantial fundraising advantage reported in April FEC filings, and favorable showings in recent polls like the April UNH survey where he leads general election matchups against Republican contenders. Incumbent Jeanne Shaheen's March 2025 retirement announcement created the vacancy, drawing former Sen. John Sununu—who leads the GOP primary per March Emerson (48%) and April UNH data—as the top Republican threat, though historical losses by Sununu and Scott Brown to Shaheen temper optimism. With primaries on September 8, Cook Political rates it Lean Democratic amid a competitive but Democrat-tilted landscape in this swing state.
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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