NEW YORK — As voters headed to the polls in New York City in triple-digit temps to cast a vote in the contentious mayoral primary Tuesday, the once-clear frontrunner Andrew Cuomo appeared to be on his back foot — and begging.

Andrew Cuomo and Zohran Mamdani are the leading candidates in the Democratic primary, but don't expect to know the winner Tuesday night.

New Yorkers have the last chance to vote in the city's primary elections using a ranked choice ballot for the Democratic nomination.