Trump endorsed John Sununu, up 60-20 in August polls. Will Sununu clear 60% in New Hampshire's Republican Senate primary Sept 8?

Former Sen. John Sununu won New Hampshire's Republican Senate primary on September 8, 2026, defeating Scott Brown by roughly 69.1% to 25.6%, according to Associated Press results reported by New Hampshire Public Radio and the Concord Monitor. The AP projected Sununu the winner shortly after polls closed as his double-digit lead over Brown held throughout the count. Sununu cleared the 60% threshold in this question comfortably, extending the roughly 60-20 lead he held over Brown in August polling. President Trump had endorsed Sununu ahead of the primary, and that backing helped consolidate Republican support and blunt Brown's late campaign push. Sununu, who represented New Hampshire in the Senate from 2003 to 2009, was widely viewed within the GOP as its strongest available nominee. He now advances to the November 3 general election against Democrat Chris Pappas for the open seat left by retiring Sen. Jeanne Shaheen, in a contest both parties are treating as pivotal to Senate control. The prediction-market community assigned a 74 percent chance to Sununu clearing 60 percent, correctly anticipating the outcome.