5 Takeaways From Mamdani’s Upset Victory in NYC’s Mayoral Democratic Primary

The win for the Democratic Socialist lawmaker revealed the success of his strategy in an election where cost of living trumped all other issues.
5 Takeaways From Mamdani’s Upset Victory in NYC’s Mayoral Democratic Primary
New York City mayoral candidate and Democratic State Representative Zohran Mamdani campaigns in New York City on April 16, 2025. Photo by ANGELA WEISS/AFP via Getty Images
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NEW YORK CITY—Zohran Mamdani, a 33-year-old self-described socialist, won the Democratic Primary contest for the 2025 New York City mayoral election, defeating former Gov. Andrew Cuomo. Even in a ranked-choice voting system, Mamdani’s lead in the first round of tallying—43.5 percent to Cuomo’s 36.3 percent—was so large that Cuomo immediately conceded.

Few predicted this would happen. In February, Mamdani, a Democratic socialist lawmaker, was written off as a nonfactor in the race with just 1 percent support, while Cuomo had 33 percent. In recent weeks, Mamdani dramatically closed the polling gap, but it was still expected to be a closer contest, with the race heading to multiple rounds of tallying to determine a victor.