Tick tock.

President Trump told a prominent New Yorker he wants long-shot mayoral hopefuls to bow out of the crowded field — by next week — in an attempt to stave off a socialist-run City Hall, The Post has learned.

Trump on Sunday rang up billionaire businessman John Catsimatidis, who has longtime ties to both Mayor Eric Adams and GOP nominee Curtis Sliwa , and voiced his dismay about what might happen to the Big Apple if Zohran Mamdani, the Democratic frontrunner and proud socialist, wins in November. 4

“He is concerned about the New York City race. He does not want a socialist mayor, and he said, ’It’s not going to happen under his watch and wants a person under his watch,” Catsimatidis told The Post.

Trump, in a historic interjection by a president in a New York City mayoral

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