P resident Donald Trump warned Democratic mayoral primary winner and state Assemblyman Zohran Mamdani that if he becomes New York City mayor, he "better behave" or he will have "big problems," after Israeli Prime Minister Benjamin Netanyahu was asked if he's worried about Mamdani arresting him.

Mamdani, a 33-year-old state assemblyman representing northwest Queens, last month shocked the political establishment by trouncing the longtime front-runner, former Gov. Andrew Cuomo, whose name recognition, experience and support of billionaires and corporations, made him the favorite.

Donald Trump labeled Zohran Mamdani a communist and accused him of anti-Semitism after Mamdani won NYC's Democratic mayoral primary. Trump threatened deportation, warned of consequences for Mamdani.