After Mayor Eric Adams defiantly vowed to stay in the Big Apple mayoral race on Friday, he headed to Cipriani 42nd Street to celebrate the 77th birthday of billionaire John Catsimatidis at the annual 77 WABC radio gala.

The dress code for the 500-guest bash was, “black tie glamour with patriotic sparkle.” Chandeliers at the storied venue glowed red, white and blue, while recognizable all-American lookalikes — from Abraham Lincoln to the Statue of Liberty — mixed with the crowd.

Even with Adams present, guests urged Catsimatidis to run for mayor of New York again. (He politely declined.) But when his wife Margo Catsimatidis was introduced as the proverbial “First Lady of New York City,” “the ballroom erupted in cheers,” a spy said.

The Post reported that President Trump last weeken

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