Trump's July 2026 endorsement of Anthony DiLorenzo has consolidated Republican support in New Hampshire's 1st Congressional District primary, elevating the businessman and former party vice chair to a dominant position ahead of the September 8 vote. DiLorenzo's profile as a seacoast auto dealer with deep party ties and fundraising capacity aligns with voter priorities on economic issues and aligns with the president's preferences over other contenders. Hollie Noveletsky, a prior candidate and party official who has emphasized tariffs and immigration, retains a smaller share amid the endorsement dynamics. Lower-polling candidates including state Rep. Brian Cole and others face structural barriers from limited visibility and resources in a race where early momentum and high-profile backing heavily influence primary outcomes.