November 3, 2026 | |||||||
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| Elections in New Hampshire |
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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. Primary elections will be held on September 8, 2026. Incumbent three-term Democratic Senator Jeanne Shaheen declined to seek a fourth term. [1]
This will be the first open Senate election in New Hampshire since 2010, and the first for this seat since 1990. [a]
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. [2] [3]
Shaheen was first elected in 2008, defeating then-incumbent senator John Sununu in a rematch of 2002, and was re-elected in 2014 and 2020. [4] Republicans have not won a U.S. Senate race in New Hampshire since 2010. [5]
| Campaign finance reports as of March 31, 2026 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| Karishma Manzur (D) | $114,396 | $99,741 | $14,654 |
| Chris Pappas (D) | $9,860,676 | $6,044,770 | $4,223,490 |
| Jared Sullivan (D) [b] | $93,914 | $28,448 | $65,565 |
| Source: Federal Election Commission [39] | |||
Aggregate polls
| Source of poll aggregation | Dates administered | Dates updated | Karishma Manzur | Chris Pappas | Jared Sullivan | Undecided [c] | Margin |
|---|---|---|---|---|---|---|---|
| 270toWin [40] | November 13–19, 2025 | January 1, 2026 | 8.0% | 60.5% | 3.5% | 29.0% | Pappas +52.5% |
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Karishma Manzur | Chris Pappas | Jared Sullivan | Other | Undecided |
|---|---|---|---|---|---|---|---|---|
| Saint Anselm College [41] | March 16–18, 2026 | 691 (RV) | ± 3.7% | 9% | 71% | 3% | – | 18% |
| University of New Hampshire [42] | January 15–19, 2026 | 893 (LV) | ± 3.3% | 11% | 65% | 2% | – | 22% |
| Saint Anselm College [43] | November 18–19, 2025 | 1,015 (RV) | ± 3.1% | 8% | 64% | 2% | – | 26% |
| University of New Hampshire [44] | November 13–17, 2025 | 521 (LV) | ± 4.3% | 8% | 57% | 5% | – | 30% |
| University of New Hampshire [45] | September 17–23, 2025 | 508 (LV) | ± 4.3% | 14% | 65% | – | 1% | 20% |
Italics indicate a withdrawn candidate.
| Campaign finance reports as of March 31, 2026 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| Scott Brown (R) | $1,664,338 | $880,952 | $783,386 |
| Dan Innis (R) | $48,502 | $48,502 | $0 |
| John E. Sununu (R) | $2,475,941 | $583,037 | $1,892,904 |
| Source: Federal Election Commission [39] | |||
Aggregate polls
| Source of poll aggregation | Dates administered | Dates updated | Scott Brown | John Sununu | Other/Undecided [c] | Margin |
|---|---|---|---|---|---|---|
| RealClearPolitics [66] | January 15 – March 23, 2026 | March 26, 2026 | 24.0% | 48.3% | 27.7% | Sununu +24.3% |
| 270toWin [40] | March 23 – 26, 2026 | March 26, 2026 | 23.5% | 48.5% | 28.0% | Sununu +25.0% |
| Race to the WH [67] | through March 23, 2026 | March 26, 2026 | 23.8% | 47.4% | 28.8% [e] | Sununu +23.6% |
| Average | 23.8% | 48.1% | 28.1% | Sununu +24.3% | ||
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Scott Brown | Dan Innis | John Sununu | Other | Undecided |
|---|---|---|---|---|---|---|---|---|
| Emerson College [68] | March 21–23, 2026 | 524 (LV) | ± 4.2% | 19% | – | 48% | 1% [f] | 32% |
| Saint Anselm College [41] | March 16–18, 2026 | 673 (RV) | ± 3.8% | 28% | – | 49% | – | 23% |
| University of New Hampshire [42] | January 15–19, 2026 | 967 (LV) | ± 3.2% | 25% | – | 48% | 1% [g] | 26% |
| Guidant Polling and Strategy (R) [69] [A] | December 9–11, 2025 | 353 (LV) | – | 30% | – | 49% | – | 21% |
| Saint Anselm College [43] | November 18–19, 2025 | 1,000 (RV) | ± 3.1% | 30% | – | 39% | – | 31% |
| University of New Hampshire [44] | November 13–17, 2025 | 593 (LV) | ± 4.0% | 27% | – | 40% | 1% | 31% |
| Innis withdraws from the race | ||||||||
| University of New Hampshire [45] | September 17–23, 2025 | 555 (LV) | ± 4.2% | 19% | 7% | 42% | 4% [h] | 28% |
| co/efficient (R) [70] | September 10–12, 2025 | 346 (LV) | – | 23% | 8% | 40% | 5% [i] | 24% |
| Saint Anselm College [71] | August 26–27, 2025 | 791 (RV) | ± 3.5% | 48% | 13% | – | – | 39% |
| Source | Ranking | As of |
|---|---|---|
| Inside Elections [74] | Tilt D | March 24, 2026 |
| The Cook Political Report [75] | Lean D | March 24, 2026 |
| Sabato's Crystal Ball [76] | Lean D | March 24, 2026 |
| Race To The WH [77] | Lean D | April 17, 2026 |
Chris Pappas vs. Scott Brown
Aggregate polls
| Source of poll aggregation | Dates administered | Dates updated | Chris Pappas | Scott Brown | Other/Undecided [c] | Margin |
|---|---|---|---|---|---|---|
| RealClearPolitics [78] | January 15, 2026 – March 23, 2026 | March 26, 2026 | 49.0% | 39.7% | 11.3% | Pappas +9.3% |
| 270toWin [40] | March 23 – 26, 2026 | March 26, 2026 | 47.5% | 38.5% | 14.0% | Pappas +9.0% |
| Race to the WH [79] | through March 23, 2026 | March 26, 2026 | 47.8% | 38.5% | 13.7% | Pappas +9.3% |
| Average | 48.1% | 38.9% | 13.0% | Pappas +9.2% | ||
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Chris Pappas (D) | Scott Brown (R) | Other | Undecided |
|---|---|---|---|---|---|---|---|
| Emerson College [68] | March 21–23, 2026 | 1,000 (LV) | ± 2.9% | 48% | 39% | 6% [j] | 7% |
| Saint Anselm College [41] | March 16–18, 2026 | 1,491 (RV) | ± 2.5% | 47% | 38% | – | 15% |
| University of New Hampshire [42] | January 15–19, 2026 | 2,053 (LV) | ± 2.1% | 52% | 42% | 1% [k] | 5% |
| NHJournal/Praecones Analytica [80] | December 26–28, 2025 | 603 (RV) | ± 4.0% | 46% | 28% | – | 26% |
| Guidant Polling and Strategy (R) [69] [A] | December 9–11, 2025 | 600 (LV) | ± 4.0% | 49% | 38% | – | 13% |
| Saint Anselm College [43] | November 18–19, 2025 | 2,212 (RV) | – | 44% | 36% | – | 20% |
| co/efficient (R) [81] | October 9–13, 2025 | 1,034 (LV) | ± 3.1% | 49% | 39% | – | 13% |
| University of New Hampshire [45] | September 17–23, 2025 | 1,235 (LV) | ± 2.8% | 52% | 37% | 2% [l] | 8% |
| co/efficient (R) [70] | September 10–12, 2025 | 904 (LV) | ± 3.3% | 50% | 40% | – | 10% |
| Saint Anselm College [82] | August 26–27, 2025 | 1,776 (RV) | ± 2.3% | 48% | 37% | – | 15% |
Chris Pappas vs. John E. Sununu
Aggregate polls
| Source of poll aggregation | Dates administered | Dates updated | Chris Pappas | John Sununu | Other/Undecided [c] | Margin |
|---|---|---|---|---|---|---|
| RealClearPolitics [83] | January 15, 2026 – March 23, 2026 | March 26, 2026 | 47.0% | 44.0% | 9.0% | Pappas +3.0% |
| 270toWin [40] | March 23 – 26, 2026 | March 26, 2026 | 45.5% | 43.5% | 11.0% | Pappas +2.0% |
| Race to the WH [79] | through March 23, 2026 | March 26, 2026 | 45.8% | 40.1% | 14.1% | Pappas +4.7% |
| Average | 46.2% | 42.5% | 11.3% | Pappas +3.3% | ||
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Chris Pappas (D) | John E. Sununu (R) | Other | Undecided |
|---|---|---|---|---|---|---|---|
| Emerson College [68] | March 21–23, 2026 | 1,000 (LV) | ± 2.9% | 45% | 44% | 5% [i] | 6% |
| Saint Anselm College [41] | March 16–18, 2026 | 1,491 (RV) | ± 2.5% | 46% | 43% | – | 11% |
| yes. every kid. [84] | January 28–29, 2026 | 563 (LV) | ± 4.1% | 45% | 41% | – | 14% |
| University of New Hampshire [42] | January 15–19, 2026 | 2,053 (LV) | ± 2.1% | 50% | 45% | 1% [k] | 5% |
| NHJournal/Praecones Analytica [80] | December 26–28, 2025 | 603 (RV) | ± 4.0% | 42% | 36% | – | 22% |
| Guidant Polling and Strategy (R) [69] [A] | December 9–11, 2025 | 600 (LV) | ± 4.0% | 47% | 44% | – | 9% |
| Saint Anselm College [43] | November 18–19, 2025 | 2,212 (RV) | – | 44% | 41% | – | 16% |
| co/efficient (R) [81] | October 9–13, 2025 | 1,034 (LV) | ± 3.1% | 45% | 42% | – | 12% |
| University of New Hampshire [45] | September 17–23, 2025 | 1,235 (LV) | ± 2.8% | 49% | 43% | 1% [k] | 7% |
| co/efficient (R) [70] | September 10–12, 2025 | 904 (LV) | ± 3.3% | 46% | 43% | – | 11% |
| 1892 Polling (R) [85] [A] | September 2–4, 2025 | 500 (LV) | ± 4.4% | 45% | 43% | – | 12% |
Chris Pappas vs. Dan Innis
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Chris Pappas (D) | Dan Innis (R) | Undecided |
|---|---|---|---|---|---|---|
| co/efficient (R) [70] | September 10–12, 2025 | 904 (LV) | ± 3.3% | 49% | 37% | 14% |
| Saint Anselm College [82] | August 26–27, 2025 | 1,776 (RV) | ± 2.3% | 48% | 30% | 22% |
Chris Pappas vs. Chris Sununu
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Chris Pappas (D) | Chris Sununu (R) | Undecided |
|---|---|---|---|---|---|---|
| Quantus Insights (R) [86] [B] | March 17–19, 2025 | 650 (RV) | ± 3.8% | 44% | 53% | 3% |
Jeanne Shaheen vs. Chris Sununu
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Jeanne Shaheen (D) | Chris Sununu (R) | Undecided |
|---|---|---|---|---|---|---|
| Praecones Analytica [87] [C] | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 46% | 54% | – |
Jeanne Shaheen vs. Frank Edelblut
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Jeanne Shaheen (D) | Frank Edelblut (R) | Undecided |
|---|---|---|---|---|---|---|
| Praecones Analytica [87] [C] | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 59% | 41% | – |
Jeanne Shaheen vs. Scott Brown
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Jeanne Shaheen (D) | Scott Brown (R) | Undecided |
|---|---|---|---|---|---|---|
| Praecones Analytica [87] [C] | February 26 – March 1, 2025 | 626 (RV) | ± 4.5% | 55% | 45% | – |
Generic Democrat vs. generic Republican
| Poll source | Date(s) administered | Sample size [d] | Margin of error | Generic Democrat | Generic Republican | Undecided |
|---|---|---|---|---|---|---|
| co/efficient (R) [81] | October 9–13, 2025 | 1,034 (LV) | ± 3.1% | 47% | 44% | 9% |
Partisan clients
{{cite web}}: CS1 maint: deprecated archival service (link)Former Rep. Annie Kuster (D-N.H.), who retired from Congress this year, told Axios she 'will take a serious look if Pappas does not run.'
[Adam Sexton]: Are you interested in running for U.S. Senate at all in 2026? [Andru Volinsky]: My focus is the book.
Pete Buttigieg, the former secretary of transportation, is coming to campaign for Chris Pappas later this week.
Gov. Kelly Ayotte, though, unequivocally said she wasn't interested in returning to the Senate this cycle.
2024 nominee Lily Tang Williams told NHJournal she is 'open minded' to the possibilities of running for either the House or Senate.
The Senate Leadership Fund, which is aligned with Senate Majority Leader John Thune, announced that it is devoting $17 million to the U.S. Senate race, hoping to flip the Democratic held seat as the GOP tries to hold onto the chamber.