The young voters who upended expectations by shifting 21 points toward President Trump and the Republicans in 2024 aren’t done surprising the country just yet. In a sign of just how badly Trump’s party has fumbled its historic gains with Gen Z, a new batch of swing state polls shows America’s youngest voters deserting the party in record numbers.

Gen Z’s 50 million eligible voters now back Democrats by an eye-popping 30-point margin . That easily beats 2020, when Joe Biden won young voters by 25 points . It approaches Barack Obama’s record-setting 34-point margin in 2008. Their political realignment could prove decisive in states like Michigan, where Abdul El-Sayed (D) is locked in a tight race with former House Intelligence Chair Mike Rogers (R), and in swing districts across the country.

Republicans have no one to blame but themselves.…