Chris Sununu, the Republican former governor of New Hampshire, announced on Tuesday that he would not run for Senate in 2026, dashing the hopes of President Trump and others in their party that he would help flip a seat in the state after a Democratic senator’s retirement.
Mr. Sununu, who served for four two-year terms as governor, was once a vocal critic of Mr. Trump’s — he endorsed Nikki Haley in the 2024 primary race — but the president had warmed to the possibility of luring the popular former governor into the Senate race.
“I hope he runs,” Mr. Trump said on Air Force One on Sunday, noting that he had met recently with Mr. Sununu in the Oval Office. “He’s been very nice to me over the last year or so.”
Senator Jeanne Shaheen, a Democrat, announced her retirement last month. Representative Chris Pappas of New Hampshire, a Democrat, recently began a bid to succeed her. The other House member from the state, Representative Maggie Goodlander, has said she is also considering a run.
Mr. Sununu, who has flirted with Senate campaigns for years but never actually declared a candidacy, officially pulled himself out of contention on Tuesday.
“No, I’m not going to run,” he said in a radio interview on The Pulse of NH, saying it was not right for his family.
He said that Republicans could still win, and that he had on Tuesday informed Senator Tim Scott of South Carolina, the chairman of the National Republican Senatorial Committee, of his decision. “It doesn’t have to be me,” Mr. Sununu said.
A spokeswoman for the Democratic Senatorial Campaign Committee, Maeve Coyle, called it “an embarrassing recruitment failure.”
Another potential Republican candidate is Scott Brown, a former senator from Massachusetts, whom Ms. Shaheen needled after she announced her exit, telling Semafor: “He’s making noises. He’s not from New Hampshire.”
The New Hampshire seat is one of three vacancies that Democrats must defend in 2026, along with Michigan and Minnesota. No Republican senators in competitive states have yet to announce retirements.
