Workers dismantle the stage following New York City mayoral candidate Andrew Cuomo’s election-night watch party for the Democratic primary on June 24, 2025 in New York City. Getty Images, Former New York Gov. Andrew Cuomo conceded to state assemblyman Zohran Mamdani in New York City's Democratic mayoral primary on Tuesday night. Why it matters: Mamdani, a 33-year-old democratic socialist, is on course for an earthquake victory after running an extraordinary grassroots campaign focused on affordability in America's largest city., Zohran Mamdani claimed victory in the Democratic Party’s New York’s mayoral primary shortly after Former New York Gov. Andrew Cuomo conceded the race on Tuesday night, after the progressive 33 , Former Gov. Andrew Cuomo conceded New York City’s Democratic mayoral primary to Zohran Mamdani as the 33-year old member of the state Assembly had a significant lead in the race Tuesday night , Cuomo concedes to Zohran Mamdani in New York City mayoral primary The 33-year-old Democratic socialist thwarted the comeback attempt by the former governor, at least for now. New York City mayoral candidate Zohran Mamdani accepts the New York Working Families Party's endorsement as their number one choice for New York City mayor on May 31, 2025 , In a remarkable upset, 33-year-old state Assembly Member Zohran Mamdani has outperformed former Gov. Andrew Cuomo in the June 24 Democratic New York City primary for mayor. Mamdani leads Cuomo 44% .