Zohran Mamdani has won New York City’s Democratic mayoral primary. A new vote count Tuesday under the city’s ranked choice voting system confirmed the progressive legislator’s stunning upset of former Gov.

Mr. Mamdani’s victory upended city politics and reverberated nationally. He relied on a memorable message, charisma and a strong ground game.

The New York City Election board on Tuesday confirmed a stunning victory by mayoral candidate Zohran Mamdani in the Democratic primary, clearing the way for the political upstart to be the party's nominee for the November mayoral election.