Brad Lander defeats Representative Dan Goldman in the Democratic primary for New York’s 10th District, securing a major victory for candidates backed by Mayor Zohran Mamdani.Lander campaigned on abolishing Immigration and Customs Enforcement, enacting Medicare for All, expanding housing and pausing US military aid to Israel, and he characterized Israel’s conduct in Gaza as a “genocide.”Goldman, who was backed by House Minority Leader Hakeem Jeffries, Governor Kathy Hochul and the American Israel Public Affairs Committee and who outraised Lander by millions, ran as a moderate focused on defeating Donald Trump and taxing billionaires like Jeff Bezos and Elon Musk.The result reinforces Mamdani’s influence after other endorsed Democrats won, hands the general election to Lander in a safe Democratic district and widens the rift between the party’s left wing and its centrists.