New York City Mayor Zohran Mamdani’s endorsed candidates win all three Democratic congressional primaries held Tuesday, according to projections and reporting from multiple outlets. CBS News projects that three left-of-center candidates backed by Mamdani are set to prevail. Other coverage similarly describes the results as a sweep, with Mamdani allies defeating Democrats supported by the state Democratic establishment. The New York Times characterizes the outcomes as an insurgency over incumbency, citing all three Mamdani-backed candidates winning and strengthening his political movement. Vox and ABC News frame the vote as a test—and potential next step—of Mamdani’s influence beyond city politics and toward the national Democratic Party, noting that he is not on the ballot in the city’s primaries but his endorsements affect congressional races. Additional outlets report that the victories reshape New York’s political dynamics by empowering progressive factions and include at least some unexpected outcomes, such as defeats involving incumbents or prominent figures. Overall, the sources agree that the Tuesday primaries mark a clear showing for Mamdani’s slate and a challenge to establishment-backed Democrats in multiple districts.