In the shifting terrain of American congressional politics, Anthony DiLorenzo has emerged from a contested Republican primary in New Hampshire's 1st District, carrying Donald Trump's endorsement into a general election battle for a seat that neither party can claim with certainty. The district — modest in its Democratic lean, significant in its openness — became vacant when incumbent Chris Pappas chose the Senate horizon over the House he held. DiLorenzo's primary victory, shaped by debates over how a nation enforces its own laws, now poses the deeper question every battleground district event