Recent polling averages place Democrat Chris Pappas ahead of Republican John Sununu by roughly 5 to 7 points in the contest for New Hampshire’s open Senate seat, though the margin bins priced highest by traders cluster in the 3–12 percent range for Pappas. The state’s independent electorate, split-ticket voting patterns, and history of narrow federal outcomes continue to limit separation between the candidates. Sununu’s prior Senate service and name recognition offset some of Pappas’s incumbency advantages from the House, while late-cycle turnout among suburban and unaffiliated voters remains a key variable. National political conditions and any shifts in voter sentiment toward checks on the administration could still compress or expand the final margin before November 3.