Mr. Mamdani defeated Andrew M. Cuomo in the Democratic primary by a significant margin. He was declared the winner on Tuesday ...

Zohran Mamdani clinched victory Tuesday in the Democratic primary for mayor of New York, cementing an upset that already has shaken national politics.

Zohran Mamdani has won New York City’s Democratic mayoral primary. A new vote count Tuesday under the city’s ranked choice ...

Mamdani won the Democratic primary, NBC News projects, and will face the incumbent, Eric Adams, in the general election.

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