Mamdani-backed Israel critics swept the primaries, marking a seismic backlash against pro-Israel incumbent Democrats and solidifying the left-wing mayor’s status as a power broker in New York. Tuesday night ended with victories for three congressional candidates, Brad Lander, Claire Valdez, and Darializa Avila Chevalier. Eli Northrup, who was endorsed by Mamdani for the State Assembly’s District 69, also trounced Stephanie Ruskay.