John E. Sununu jumps into the 2026 New Hampshire Senate race
John E. Sununu announced he is running to reclaim his old Senate seat in New Hampshire, aiming to succeed retiring Senator Jeanne Shaheen and flip a key swing state back to Republican control. The former senator re-emerged from the private sector with a pitch about steadiness and practical results rather than spectacle. This launch instantly reshapes a race national Republicans now view as winnable.
In his campaign video Sununu bluntly described the current mood in Washington and laid out his rationale for returning to public life, saying “Congress just seems loud, dysfunctional, even angry,” and that he wants to “return to the Senate to help calm the waters.” He framed his candidacy as a corrective to the chaos, a promise to lower the temperature and focus on governing. That message will be tested in a competitive primary and a consequential general election.
Sununu brings a long résumé in New England politics, having beaten Jeanne Shaheen in 2002 and then losing a rematch in 2008, and serving earlier as a three-term member of the House. After nearly two decades away from elected office he argues experience matters and that name recognition in the Granite State gives him immediate traction. His return is being watched closely by party strategists who see opportunity in a state that swings reliably in close contests.
The Sununu family is a political brand in New Hampshire, with his father John H. Sununu having served as governor and White House chief of staff, and his brother Chris Sununu rising to statewide prominence as governor for four terms. That lineage helps open doors with donors, operatives, and activists who value tested leadership and local ties. It also draws scrutiny from opponents who will frame the race as establishment versus outsider energy.
But Sununu will not walk to the nomination. Former senator and ambassador Scott Brown jumped into the contest and immediately touted a sizable fundraising haul and retail energy across the state. Brown argues his recent public service and Trump-era connections make him a stronger fit for today’s Republican primary electorate.
Brown made his pitch bluntly about campaign resources and approach, saying “Our campaign will have the necessary resources for the long haul, and allow me to campaign the only way I know how: relentless hard work and a focus on retail politics that Granite State voters expect.” That is meant to reassure donors and activists that he can compete statewide and weather a bruising fight. It also signals a long, expensive primary that could leave scars for the eventual nominee.
Brown has also been aggressive in contrasting his loyalty to President Trump with Sununu’s past moves, and his critique was pointed: “Anyone who thinks that a never Trump, corporate lobbyist who hasn’t won an election in a quarter century will resonate with today’s GOP primary voters is living in a different universe. While John was supporting John Kasich in 2016, I was campaigning with Donald Trump,” Brown charged in a statement to Fox News. Those lines are designed to draw a sharp choice for primary voters about who best represents the party’s base.
Sununu’s recent record includes national roles on presidential campaigns and public endorsements that did not always align with Trump, and he even wrote an opinion piece titled “Donald Trump is a loser,” in a major state paper during the 2024 cycle. That history will be a focal point in debates and ads, and Sununu will need to explain both his past critiques and why he believes he can now unite the GOP coalition. The question for many voters will be whether electability and experience outweigh past disagreements.
Scott Brown’s own history includes a New Hampshire Senate run and a stint as ambassador during the Trump administration, which he highlights to show continuity with the national GOP and the campaign infrastructure to compete. His appeal centers on pragmatism mixed with loyalty to the president, and he has already leaned into retail outreach across New Hampshire’s towns and live events. That ground game could matter in a primary where small margins and personal contact drive outcomes.
President Trump has remained publicly neutral so far but has spoken favorably about the Sununu family in private conversations, and he offered warm words about the governor’s potential ambitions. Trump told reporters “He’s been very nice to me over the last year or so,” and said “I hope he runs. I think he’ll win that seat.” Those endorsements, implied or explicit, will carry weight with many primary voters watching for cues.
National Republican operatives have circulated a common assessment that Sununu can make New Hampshire competitive in 2026, with one strategist saying, “President Trump appreciates winners and understands that John E. Sununu puts this race on the map for Republicans.” Meetings with Senate leaders and key funders have followed Sununu’s announcement, signaling national interest and potential investment. That backing will be critical if the primary becomes a prolonged, expensive fight.
On the Democratic side four-term Representative Chris Pappas has emerged as his party’s early frontrunner, setting up a classic swing state matchup should the GOP unify. New Hampshire’s primary calendar and local dynamics mean the contest will be won or lost on retail politics, town hall by town hall, in a state where voters prize independence and accessible campaigning. Republicans have not won a Senate race in New Hampshire since 2010, so this one will be treated as a top priority and a test of strategy and message.
