Brooklyn borough president and progressive Democrat pushing for housing reform
Progressive candidates endorsed by Mayor Zohran Mamdani have won three key Democratic primaries in New York, expanding the left’s influence in Congress. Brad Lander, Darializa Avila Chevalier and Claire Valdez have defeated establishment-backed rivals in the 10th, 13th and 7th districts, with open seats in play and a broader shift underway.
DSA-backed candidates have swept New York primaries, bolstering Mayor Mamdani's influence and signaling a shift in Democratic strategy. Leaders warn the party must deliver for working people as debates over 2028 strategy begin.