For Muslim Americans across the country, his victory was a historic moment — one that cast a sharp rebuke toward Islamophobia.

Zohran Mamdani was a state lawmaker unknown even to most New York City residents when he announced his run for mayor back in October. On Tuesday evening, the 33-year-old marked his stunning political ascension when he declared victory in the Democratic primary from a Queens rooftop bar after former New York Gov.

Mr. Mamdani would be the first Muslim mayor of New York City, and his faith played a role in expanding the diverse coalition that propelled his campaign.