Sununu Wins New Hampshire Senate Primary With Trump's Support

John E. Sununu won New Hampshire's Republican Senate primary on September 8, 2026, beating seven opponents with Donald Trump's endorsement — despite once calling Trump a "loser." A primary is a party's contest to pick its candidate. He now faces Democrat Chris Pappas in November for retiring Sen. Jeanne Shaheen's seat. Republicans see a likely win in a state Harris barely carried.