Democratic Rep. Chris Pappas holds a consistent lead in New Hampshire's open Senate race following incumbent Jeanne Shaheen's retirement announcement. Recent polling from June and July 2026 shows Pappas ahead of likely Republican nominee John Sununu by double digits in head-to-head matchups, with averages around 49% to 37%. New Hampshire's partisan voting index and historical patterns favor Democrats in federal contests, even as Republicans highlight Sununu's name recognition and Trump endorsement. The September 8 primaries remain the immediate next step, with general election dynamics on November 3 shaping trader assessments of the implied probability for a Democratic victory.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$43,705 Vol.
$43,705 Vol.

Democrat
85%

Republican
14%
$43,705 Vol.
$43,705 Vol.

Democrat
85%

Republican
14%
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 consistent lead in New Hampshire's open Senate race following incumbent Jeanne Shaheen's retirement announcement. Recent polling from June and July 2026 shows Pappas ahead of likely Republican nominee John Sununu by double digits in head-to-head matchups, with averages around 49% to 37%. New Hampshire's partisan voting index and historical patterns favor Democrats in federal contests, even as Republicans highlight Sununu's name recognition and Trump endorsement. The September 8 primaries remain the immediate next step, with general election dynamics on November 3 shaping trader assessments of the implied probability for a Democratic victory.
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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