Full Breakdown
New Hampshire Senate Primary: A Tight Race Across Party Lines
9/8/2026, 3:54:03 AM
Core Event – Primary Contests Shape the 2026 Senate Race
Voters in New Hampshire will choose party nominees for the U.S. Senate seat vacated by retiring Democrat Jeanne Shaheen. The Democratic primary pits Rep. Chris Pappas against scientist Karishma Manzur, while the Republican primary features former senator John E. Sununu and former ambassador Scott Brown. Both contests are viewed as pivotal for the November 3 general election, with national parties investing heavily.
Background & Context – Open Seat and Party Stakes
Shaheen’s retirement in March 2025 created the first open Senate seat in the state in over a decade. Democrats see the race as essential to preserving a Senate majority; Republicans view it as a rare pickup opportunity in a New England state with an all-Democratic Senate delegation. The Senate Leadership Fund has publicly backed Sununu as a candidate who can attract independents.
Data & Statistics – Polls, Fundraising, Voter Demographics
- An Inside Elections analysis of a University of New Hampshire poll released in late August showed Sununu ahead of Pappas by 2 points.
- Jewish Insider cited a St. Anselm College poll from mid-August that placed Pappas seven points ahead of Sununu.
- Pappas’ campaign disclosed an internal poll indicating a 56-point advantage over Manzur.
- Sununu’s campaign reported a fundraising edge over Brown, while Pappas received a visit from Arizona Sen. Mark Kelly, who highlighted the campaign’s grassroots donor base.
Official Statements & Responses – Party Leaders and Campaigns
- Sununu, speaking at a Manchester rally, framed the contest as “about the future” and the state’s voice in Washington.
Conflicting Reports & Gaps – Divergent Poll Results and Unclear Voter Turnout
Polling presents an inconsistent picture: the Inside Elections-cited UNH poll shows a narrow Sununu lead, the St. Anselm poll favors Pappas, and the campaign’s internal survey suggests a massive Pappas advantage. No source provides definitive data on likely voter turnout among younger versus older constituents, leaving the impact of Manzur’s progressive base versus Sununu’s name-recognition advantage uncertain.
Verbatim Quotes
- “Right now, our country is the richest it has ever been,” — Arizona Sen. Mark Kelly
- “More than anything, this race is about the future,” — John E. Sununu
- “He’s getting more support from more moderate voters and more independent voters who either don’t know Pappas or maybe they are just looking for somebody different,” — Andrew Smith
What’s Next – Campaign Momentum Toward the General Election
The primary winners will face each other in the November 3 general election. Both parties have scheduled additional fundraising events and voter-contact drives in the weeks leading up to the election, with national figures expected to appear on the campaign trail to bolster their nominees.
