The numbers behind Zohran Mamdani’s upset performance over former Gov. Andrew Cuomo in New York City's Democratic mayoral primary.

Zohran Mamdani appears poised to be the Democratic nominee for mayor, where he could face a contested race that will include Eric Adams and perhaps Andrew Cuomo.

Zohran Mamdani declared victory in New York City’s Democratic mayoral primary Tuesday night after Andrew Cuomo conceded the race in a stunning upset. Mamdani is a progressive upstart who was virtually unknown when the contest began built a substantial lead over the more experienced but scandal-scarred former governor.