Rabbi Elliot Cosgrove of the Park Avenue Synagogue explained why he believes mayoral candidate Zohran Mamdani poses a danger to the security of the New York Jewish community on Saturday, Oct. 18, 2025. (Credit: Park Avenue Synagogue) Rabbi Elliot Cosgrove of the Park Avenue Synagogue explained why he believes mayoral candidate Zohran Mamdani poses a danger to the security of the New York Jewish community on Saturday, Oct. 18, 2025. (Credit: Park Avenue Synagogue)