Democratic Socialist Zohran Mamdani defied political expectations and beat Andrew Cuomo in the New York City mayoral democratic primary.

A day before New York City’s mayoral primary election, all eyes are on Zohran Mamdani, the Democratic Socialist candidate looking to topple former New York Gov. Andrew Cuomo to be on the Democratic ticket.

Not so long ago, Mr. Mamdani was a little-known state assemblyman. But his personality and platform captivated an unlikely coalition of New York City primary voters.