President Donald Trump on Friday called New York City Democratic mayoral candidate Zohran Mamdani “a communist,” and said the Big Apple will become “a communistic city” if he is elected mayor in November.

“I can’t believe that’s happening,” Trump told reporters at the White House. “That’s a terrible thing for our country, by the way.”

Trump’s comments came three days after Mamdani — who is a democratic socialist, not a communist — scored a stunning victory over former New York Gov. Andrew Cuomo in the first round of the city’s Democratic mayoral primary.

Cuomo conceded to Mamdani late Tuesday night, acknowledging the strong likelihood that the next round of the primary’s ranked-choice voting system would confirm Mamdani, a member of the Democratic Socialists of America, as the Democratic Party’s nominee.

Mamdani won the initial primary round despite the fact that many prominent Democrats had endorsed Cuomo.