# 2026 United States Senate election in New Hampshire

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2026 :
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vte :
The 2026 United States Senate election in New Hampshire will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of New Hampshire. Incumbent three-term Democratic Senator Jeanne Shaheen declined to seek re-election to a fourth term.
This will be the first open Senate election in New Hampshire since 2010, and the first for this seat in which there is no incumbent running since 1990.

## Background

New Hampshire is considered to be a slightly to moderately blue state at the federal level, with Kamala Harris carrying the state by roughly 3 percentage points in the 2024 presidential election. The state’s congressional delegation has been entirely Democratic since 2017. However, Republicans control the governorship, both state legislative chambers, and a majority in the executive council.
Shaheen was first elected in 2008, defeating then-incumbent senator John Sununu, and was re-elected in 2014 and 2020.

## Democratic primary
### Candidates
#### Publicly expressed interest

* Annie Kuster, former U.S. representative for New Hampshire's 2nd congressional district (2013–2025) (if Pappas doesn't run)
* Chris Pappas, U.S. representative for New Hampshire's 1st congressional district (2019–present)
* Stefany Shaheen, former Portsmouth city councilor and daughter of incumbent Jeanne Shaheen

#### Potential

* Maggie Goodlander, U.S. representative for New Hampshire's 2nd congressional district (2025–present)
* Chris Pappas, U.S. representative for New Hampshire's 1st congressional district (2019–present)
* Stefany Shaheen, former Portsmouth city councilor and daughter of incumbent Jeanne Shaheen

#### Declined

* Jeanne Shaheen, incumbent U.S. Senator (2009–present)

## Republican primary
### Candidates
#### Publicly expressed interest

* Scott Brown, former U.S. Ambassador to New Zealand and Samoa (2017–2020), former U.S. Senator from Massachusetts (2010–2013), and nominee for this seat in 2014
* Jack Franks, real estate developer
* Chris Sununu, former governor of New Hampshire (2017–2025) and brother of former U.S. Senator John Sununu
* Lily Tang Williams, former chair of the Colorado Libertarian Party, Libertarian nominee for U.S. Senate in Colorado in 2016, candidate for New Hampshire's 2nd congressional district in 2022 and nominee in 2024

#### Potential

* Lou Gargiulo, former state representative (1992–1996)
* Corey Lewandowski, political strategist and former campaign manager for the Donald Trump 2016 presidential campaign
* Matt Mowers, former chair of the New Hampshire Republican Party, nominee for New Hampshire's 1st congressional district in 2020 and candidate in 2022
* Stephen Stepanek, former chair of the New Hampshire Republican Party (2019–2023) and former state representative (2014–2016)

#### Declined

* Kelly Ayotte, Governor of New Hampshire (2025–present) and former U.S. Senator (2011–2017)

## General election
### Predictions

| Source | Ranking | As of |
| Inside Elections | Battleground | January 17, 2025 |
| The Cook Political Report | Lean D | February 11, 2025 |
| Sabato's Crystal Ball | Lean D | March 12, 2025 |

### Polling

Jeanne Shaheen vs. Chris Sununu
| Poll source | Date(s) administered | Sample size | Margin of error | Jeanne Shaheen (D) | Chris Sununu (R) | Undecided |
| Praecones Analytica | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 46% | 54% | – |
Jeanne Shaheen vs. Frank Edelblut
| Poll source | Date(s) administered | Sample size | Margin of error | Jeanne Shaheen (D) | Frank Edelblut (R) | Undecided |
| Praecones Analytica | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 59% | 41% | – |
Jeanne Shaheen vs. Scott Brown
| Poll source | Date(s) administered | Sample size | Margin of error | Jeanne Shaheen (D) | Scott Brown (R) | Undecided |
| Praecones Analytica | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 55% | 45% | – |