Election Day 2025 could reshape the trajectory for emerging 2028 contenders. A win for New York City’s mayoral frontrunner or passage of California’s Proposition 50 would give Gov. Gavin Newsom and Rep. Alexandria Ocasio-Cortez high-profile victories to showcase leadership and influence. Analysts say the results may accelerate their national profiles while signaling momentum for Democrats heading into the 2026 midterms.