Maura Sullivan has emerged as the frontrunner in the New Hampshire 1st Congressional District Democratic primary, driven by consistent fundraising dominance and endorsements from veterans and former officials. She has outraised Stefany Shaheen across multiple quarters, reaching over $3 million raised with a substantial cash advantage heading into the September 8 vote. Shaheen, who entered as the early leader due to high name recognition as the daughter of retiring Sen. Jeanne Shaheen, has faced criticism over out-of-state donors and released the first negative ad targeting Sullivan’s contributions. Recent polls from Saint Anselm and UNH show the pair statistically close or with Sullivan ahead amid a large field of undecided voters. Carleigh Beriont has gained some progressive support through grassroots efforts, while Heath Howard suspended his campaign and endorsed her.