2026 U.S. Senate election in New Hampshire

Election: 11/3/2026
United States Senate • New Hampshire
Updated: 5/15/2026

Open 2026 U.S. Senate race in New Hampshire for the seat held by retiring Sen. Jeanne Shaheen. The contest is drawing attention because New Hampshire is a competitive statewide battleground, with Democrats and Republicans testing different paths to the seat through the general election and the Sept. 8 primary.

Latest Poll

UNH Survey Center · Jan 21

Pappas
50%
Sununu
45%
4 polls total — view all ↓

Candidates

Chris Pappas is the Democratic U.S. representative for New Hampshire's 1st Congressional District and a candidate for the open Senate seat in 2026. In April 2026, his campaign highlighted a child care cost plan as part of its broader tax-and-costs message.

Scott Brown is a former U.S. senator from Massachusetts and the Republican nominee in New Hampshire's 2014 Senate race. In the 2026 cycle, he is running for the open New Hampshire Senate seat and was trailing John E. Sununu in the Republican primary polling cited in January 2026.

John E. Sununu is a former Republican U.S. senator from New Hampshire who previously served in the U.S. House and is running again for the Senate in 2026. He is part of New Hampshire's Sununu political family and is campaigning on a message centered on affordability, fiscal restraint, and independent leadership.

Tejasinha Sivalingam is a Republican candidate for U.S. Senate in New Hampshire. Public records show he previously ran for the same seat and has also been active in New Hampshire issue surveys and candidate questionnaires.

Karishma Manzur is a scientist and Democratic candidate in the 2026 New Hampshire Senate race. In the January 2026 UNH Survey Center poll, she trailed Chris Pappas by a wide margin in the Democratic primary testing.

Jared Sullivan is a Democratic member of the New Hampshire House of Representatives from the Grafton 2 district and is running for U.S. Senate in 2026. He has said his campaign is focused on restoring trust in government, addressing housing affordability, and pushing for democratic reforms such as campaign finance changes and ranked-choice voting.

Polling

UNH Survey Center Jan 21, 2026
n=2,053
Chris Pappas
50%
John E. Sununu
45%
Chris Pappas
52%
Scott Brown
42%
John E. Sununu
48%
Scott Brown
25%
Chris Pappas
65%
Karishma Manzur
11%
Source
Saint Anselm College Survey Center Mar 18, 2026
n=1,491
Chris Pappas
46%
John E. Sununu
43%
Chris Pappas
47%
Scott Brown
38%
John E. Sununu
49%
Scott Brown
28%
Source
Emerson College Polling Mar 26, 2026
n=1,000
Chris Pappas
45%
John E. Sununu
44%
Chris Pappas
48%
Scott Brown
39%
John E. Sununu
48%
Scott Brown
19%
Source
University of New Hampshire Survey Center Jan 21, 2026
n=1,100
John E. Sununu
45%
Chris Pappas
47%
Source

Data Analysis Information

Data compiled from public sources and analyzed using AI. Last updated 5/15/2026. Visit candidate websites for the most current information.

Models: GPT-5 MiniGPT-5 NanoClaude Haiku 4.5Gemini 3.1 Flash LiteGrok 4.1 Fast

© 2026 Smarter.vote. Analyzing public information to help voters make informed decisions.

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