Stefany Shaheen holds a clear lead in the NH-01 Democratic primary as the September 8 vote nears, driven by strong name recognition as the daughter of longtime U.S. Senator Jeanne Shaheen, multiple union and advocacy endorsements, and consistent polling advantages heading into the final weeks. Recent fundraising reports and events such as appearances at district Pride celebrations have reinforced her position among voters in key areas like Portsmouth and Manchester. Maura Sullivan remains the main challenger with a substantial fundraising edge but trails in surveys and organizational support. Heath Howard and Carleigh Beriont show limited traction in a field where early momentum and institutional backing have shaped trader consensus around the frontrunner.