New Hampshire — Senate 2026

New Hampshire Senate 2026: Hassan Defends, NH-1 Opens Up

Hassan won 2022 by 9 points and is a solid D favorite. Kelly Ayotte just became Governor — a rematch is unlikely after one year in office. NH-1 is Toss-up with Pappas running for Senate instead.

Lean D
Hassan Senate Rating
+9
Hassan 2022 Margin
Toss-up
NH-1 (Open)
43%
Independent Voters
New Hampshire Senate 2026

New Hampshire Senate & Congressional Snapshot 2026

Race / Factor Current Status History 2026 Rating
US Senate (Hassan) Maggie Hassan (D) Won 2022 by +9 Lean D
NH-1 (Manchester/Seacoast) Open (Pappas running for Sen.) Pappas won by ~4 pts (2022) Toss-up
NH-2 (Concord/west) Annie Kuster (D) Won by +8 (2022) Likely D
Governor (not up in 2026) Kelly Ayotte (R) Won Nov 2024 Not on ballot
Presidential lean (2024) Trump +2 NH (narrow R) Biden +7 in 2020 Competitive
Registered Independents 43% unaffiliated Highest of NE states Key swing bloc
Ayotte Senate speculation Unlikely — 1 yr as Gov. Last ran 2016, lost by 1,017 No clear challenger
First primary state First presidential primary Disproportionate media High visibility

Sources: Cook Political Report, NH Secretary of State, Dave Leip's Atlas. Ratings as of early 2026.

Three Storylines in New Hampshire

Hassan Defense

Hassan's 2022 Margin Gives Her Structural Room

Maggie Hassan won re-election in November 2022 by 9.3 percentage points, her strongest statewide margin ever. The 2022 result was particularly impressive given the national environment and Trump's continued influence on the Republican primary. Hassan's challenger, Don Bolduc, was a Trump-endorsed candidate whose primary victory hurt Republican general election prospects.

Hassan has developed a moderate governing profile focused on prescription drug pricing, veterans' issues, and fiscal accountability — themes with bipartisan appeal in New Hampshire's fiscally conservative but socially moderate political culture. Her 2026 challenge will depend heavily on who Republicans nominate.

Without Ayotte in the race, Republicans face a candidate quality problem. A Trump-aligned primary winner would face the same structural problem Bolduc faced in 2022, while a moderate candidate would struggle to win a Republican primary that has moved rightward since 2016.

NH-1 Toss-Up

Pappas Vacates; NH-1 Becomes 2026's Most Competitive NH Race

Representative Chris Pappas, who held NH-1 since 2019, is running for the US Senate majority math instead of seeking another House term. His departure creates the most competitive open seat in New England. NH-1 covers Manchester (New Hampshire's largest city), the Seacoast region, and parts of southern New Hampshire.

The district has a slight Democratic lean at the presidential level but Pappas won it through strong incumbency advantages and constituent service. Without him on the ballot, both parties start roughly even. Republicans will likely recruit a strong candidate, and Democrats will need to find a candidate with Pappas's crossover appeal.

NH-1 candidate recruitment will be closely watched. Democrats winning the seat would require excellent recruitment. Republicans winning it would potentially give them a net House gain and signal that their 2024 House majority advantages are holding in New England.

Independent Voters

"Live Free or Die": NH's 43% Independent Electorate

New Hampshire's political identity is defined by its independent voters. Approximately 43% of registered voters are "undeclared" — unaffiliated with either party. In primary elections, undeclared voters can choose to vote in either party's primary on the same day, making them the pivotal bloc in both primary and general elections.

These voters are typically fiscally conservative, socially moderate, and skeptical of strong government in both directions. They are the voters who elected Republican governors like Chris Sununu while also sending Democratic senators to Washington. They delivered Trump's narrow 2024 win in New Hampshire but backed Biden in 2020.

In 2026, the question is whether New Hampshire independents are primarily motivated by anti-Trump sentiment (favoring Hassan and NH-1 Democrats) or by economic concerns about inflation and spending (potentially favoring Republicans). Hassan's positioning as a pragmatic, independent-minded Democrat gives her better odds of winning this bloc than a more partisan Democrat would have.

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Generic Ballot Democrats47.8% Republicans41.1% D+6.7 Trump Approval Approve39% Disapprove58% Senate D47 R53 House D213 R222 Generic Ballot Tracker Trump Approval Senate 2026 House 2026 Latest Analysis