The 2026 New Hampshire Senate race is an open-seat contest following Democratic incumbent Jeanne Shaheen’s retirement, with primaries scheduled for September 8. Representative Chris Pappas leads the Democratic primary by double digits in late August polling and holds a narrow edge or statistical tie against former Senator John Sununu in general-election matchups, consistent with New Hampshire’s modest Democratic lean in recent cycles. Sununu dominates the Republican primary but trails slightly in head-to-head surveys. Trader consensus favoring a Democratic outcome at 87.5 percent reflects the state’s electoral history, Pappas’s established fundraising and organizational advantages, and the absence of major shifts that would alter the competitive baseline before November.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$83,051 Vol.
$83,051 Vol.
Nov 2, 2026
Democrat
88%
Republican
13%
$83,051 Vol.
$83,051 Vol.
Nov 2, 2026
Democrat
$56,293 Vol.
88%
Republican
$26,757 Vol.
13%
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.The 2026 New Hampshire Senate race is an open-seat contest following Democratic incumbent Jeanne Shaheen’s retirement, with primaries scheduled for September 8. Representative Chris Pappas leads the Democratic primary by double digits in late August polling and holds a narrow edge or statistical tie against former Senator John Sununu in general-election matchups, consistent with New Hampshire’s modest Democratic lean in recent cycles. Sununu dominates the Republican primary but trails slightly in head-to-head surveys. Trader consensus favoring a Democratic outcome at 87.5 percent reflects the state’s electoral history, Pappas’s established fundraising and organizational advantages, and the absence of major shifts that would alter the competitive baseline before November.
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
$83,051End 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.The 2026 New Hampshire Senate race is an open-seat contest following Democratic incumbent Jeanne Shaheen’s retirement, with primaries scheduled for September 8. Representative Chris Pappas leads the Democratic primary by double digits in late August polling and holds a narrow edge or statistical tie against former Senator John Sununu in general-election matchups, consistent with New Hampshire’s modest Democratic lean in recent cycles. Sununu dominates the Republican primary but trails slightly in head-to-head surveys. Trader consensus favoring a Democratic outcome at 87.5 percent reflects the state’s electoral history, Pappas’s established fundraising and organizational advantages, and the absence of major shifts that would alter the competitive baseline before November.
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
$83,051End Date
Nov 3, 2026Market Opened
Oct 13, 2025, 5:04 PM ETResolver
0x2F5e3684c...The 2026 New Hampshire Senate race is an open-seat contest following Democratic incumbent Jeanne Shaheen’s retirement, with primaries scheduled for September 8. Representative Chris Pappas leads the Democratic primary by double digits in late August polling and holds a narrow edge or statistical tie against former Senator John Sununu in general-election matchups, consistent with New Hampshire’s modest Democratic lean in recent cycles. Sununu dominates the Republican primary but trails slightly in head-to-head surveys. Trader consensus favoring a Democratic outcome at 87.5 percent reflects the state’s electoral history, Pappas’s established fundraising and organizational advantages, and the absence of major shifts that would alter the competitive baseline before November.
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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