New York City Mayor Zohran Mamdani is putting his political capital on the line in a trio of closely watched House primaries, backing a slate of progressive challengers that could reshape the city’s congressional delegation.Mamdani has endorsed three progressive Democratic candidates: Claire Valdez, Darializa Avila Chevalier, and Brad Lander. The New York City mayor wading into the races has set up a broader ideological clash within the party, with two of the candidates being current members of the Democratic Socialists of America and the third being a former DSA member. Mamdani’s backing of challengers to incumbents and allied figures has strained relationships with key Democratic leaders and could test the durability of his coalition.With primary voters heading to the polls Tuesday, the results of these races will offer an early measure of Mamdani’s clout — and whether his brand of politics can translate into wins beyond New York City’s mayoral office.
Basil Smikle Jr., a New York Democratic strategist, told the Washington Examiner he was not surprised the movement that got Mamdani elected “would want to grow and expand,” saying that if one has been following New York politics, “you realize that there have been DSA members that have been elected to the City Council and to the state legislature, so it’s not inconceivable that they would want to, you know, find ways to elect members to Congress.”In New York’s 7th Congressional District, Valdez, a democratic socialist, is competing in an open-seat race against retiring Rep. Nydia Velazquez’s (D-NY) chosen candidate, Antonio Reynoso. Mamdani’s endorsement of Valdez has put him at odds with parts of the city’s progressive establishment, including Velazquez.New York City Mayor-elect Zohran Mamdani listens as President Donald Trump speaks in the Oval Office of the White House, Friday, Nov. 21, 2025, in Washington. (AP Photo/Evan Vucci, File)
