United States Senate election in New Hampshire, 2026 (September 8 Republican primary)
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| U.S. Senate, New Hampshire |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: June 12, 2026 |
| Primary: September 8, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
Varies by municipality |
| Race ratings |
DDHQ and The Hill: Pending Inside Elections: Tilt Democratic Sabato's Crystal Ball: Lean Democratic |
| Ballotpedia analysis |
| U.S. Senate battlegrounds U.S. House battlegrounds Federal and state primary competitiveness Ballotpedia's Election Analysis Hub, 2026 |
| See also |
U.S. Senate • 1st • 2nd New Hampshire elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Republican Party primary takes place on September 8, 2026, in New Hampshire to determine which Republican candidate will run in the state's general election on November 3, 2026.
| Candidate filing deadline | Primary election | General election |
|---|---|---|
Heading into the election, the incumbent is Jeanne Shaheen (Democrat), who was first elected in 2008.
A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. New Hampshire uses a semi-closed primary system. Unaffiliated voters may vote in the primary, but in order to do so, they have to choose a party before voting. This changes their status from unaffiliated to affiliated with that party unless they fill out a card to return to undeclared status.[1][2]
For information about which offices are nominated via primary election, see this article.
Thirty-three of the 100 U.S. Senate seats are up for election, and another two seats are up for special election. Democrats hold 13 of the seats up for election, and Republicans hold 22. As of January 2026, nine members of the U.S. Senate announced they are not running for re-election. To read more about the U.S. Senate elections taking place this year, click here.
This is one of nine open U.S. Senate races this year in which an incumbent is not running for re-election. Across the country, four Democrats and five Republicans are not running for re-election — more than any year since 2012. In 2024, eight incumbents — four Democrats, two Republicans, and two independents — did not seek re-election.
This page focuses on New Hampshire's United States Senate Republican primary. For more in-depth information on the state's Democratic primary and the general election, see the following pages:
- United States Senate election in New Hampshire, 2026 (September 8 Democratic primary)
- United States Senate election in New Hampshire, 2026
Candidates and election results
Note: The following list includes official candidates only. Ballotpedia defines official candidates as people who:
- Register with a federal or state campaign finance agency before the candidate filing deadline
- Appear on candidate lists released by government election agencies
Republican primary election
Republican primary for U.S. Senate New Hampshire
Scott Brown, Tejasinha Sivalingam, and John Sununu are running in the Republican primary for U.S. Senate New Hampshire on September 8, 2026.
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 = candidate completed the Ballotpedia Candidate Connection survey. | ||||
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Withdrawn or disqualified candidates
- Dan Innis (R)
Candidate profiles
This section includes candidate profiles that may be created in one of two ways: either the candidate completed Ballotpedia's Candidate Connection survey, or Ballotpedia staff may compile a profile based on campaign websites, advertisements, and public statements after identifying the candidate as noteworthy. For more on how we select candidates to include, click here.
Voting information
- See also: Voting in New Hampshire
Ballotpedia will publish the dates and deadlines related to this election as they are made available.
Polls
- See also: Ballotpedia's approach to covering polls
Polls are conducted with a variety of methodologies and have margins of error or credibility intervals.[3] The Pew Research Center wrote, "A margin of error of plus or minus 3 percentage points at the 95% confidence level means that if we fielded the same survey 100 times, we would expect the result to be within 3 percentage points of the true population value 95 of those times."[4] For tips on reading polls from FiveThirtyEight, click here. For tips from Pew, click here.
Below we provide results for polls from a wide variety of sources, including media outlets, social media, campaigns, and aggregation websites, when available. We only report polls for which we can find a margin of error or credibility interval. Know of something we're missing? Click here to let us know.
| Poll | Dates | Brown | Manzur | Pappas | Sununu | Other/Don't know/Undecided | Undecided/Other | Other | Undecided | Sample size | Margin of error | Sponsor |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
– | 25 | -- | -- | 48 | 27 | -- | -- | -- | 967 LV | ± 3.2% | University of New Hampshire | |
Guidant Polling and Strategy NoteHypothetical two-way matchup between Scott Brown (R) and John Sununu (R). | – | 30 | -- | -- | 49 | -- | -- | -- | 21 | 353 LV | ± 4.0% | N/A |
– | -- | 8 | 64 | -- | -- | 28 | -- | -- | 1,015 RV | ± 3.1% | ||
– | 27 | -- | -- | 40 | -- | -- | 1 | 31 | 593 LV | ± 4.0% | ||
| Note: LV is likely voters, RV is registered voters, and EV is eligible voters. | ||||||||||||
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| Scott Brown | Republican Party | $1,342,972 | $435,138 | $907,834 | As of December 31, 2025 |
| Eric Coates | Republican Party | $0 | $0 | $0 | Data not available*** |
| Charlie Hough | Republican Party | $0 | $0 | $0 | Data not available*** |
| Tejasinha Sivalingam | Republican Party | $885 | $885 | $0 | As of February 21, 2023 |
| John Sununu | Republican Party | $0 | $0 | $0 | Data not available*** |
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Source: Federal Elections Commission, "Campaign finance data," 2026. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC).
* According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee." |
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Ballot access
The table below details filing requirements for U.S. Senate candidates in New Hampshire in the 2026 election cycle. For additional information on candidate ballot access requirements in New Hampshire, click here.
| Filing requirements for U.S. Senate candidates, 2026 | ||||||
|---|---|---|---|---|---|---|
| State | Office | Party | Signatures required | Filing fee | Filing deadline | Source |
| New Hampshire | U.S. Senate | Ballot-qualified party | 200 | $100.00 | 6/12/2026 | Source |
| New Hampshire | U.S. Senate | Unaffiliated | 3,000 | $100.00 | 8/5/2026 | Source |
See also
- United States Senate election in New Hampshire, 2026 (September 8 Democratic primary)
- United States Senate election in New Hampshire, 2026
- United States Senate Democratic Party primaries, 2026
- United States Senate Republican Party primaries, 2026
- United States Senate elections, 2026
- U.S. Senate battlegrounds, 2026
External links
Footnotes
- ↑ New Hampshire General Court, "N.H. Rev. Stat. Ann. § 659:14," accessed December 10, 2025
- ↑ New Hampshire General Court, "N.H. Rev. Stat. Ann. § 654:34," accessed December 10, 2025
- ↑ For more information on the difference between margins of error and credibility intervals, see explanations from the American Association for Public Opinion Research and Ipsos.
- ↑ Pew Research Center, "5 key things to know about the margin of error in election polls," September 8, 2016
