‘Just shooting off his mouth’

City billionaire WABC radio owner John Catsimatidis and ex-Gov. David Paterson took turns over the weekend pounding former show-host Curtis Sliwa for “shooting off his mouth’’ and ruining the mayoral race.

Sliwa, the Republican candidate for mayor, only received 7% of the vote in last week’s election — but critics had previously demanded he drop out of the running to try to help centrist Dem Andrew Cuomo beat the eventual winner, radical Democratic Socialist Zohran Mamdani.

“I was very disappointed in Curtis – how he was just shooting off his mouth,” said Catsimatids, the host of 77 WABC’s the “Cats Roundtable,” on Sunday. I have known him for a long time. He’s a good person. But I was disappointed.”

Catsimatidis was among those who tried to persuade Sliwa, his former radio host employee, to suspend his campaign and back Cuomo.

Sliwa refused.

Paterson piled on Sliwa on Sunday.

“He didn’t even talk about the issues in the last couple of weeks. He talked about himself. And he talked himself into 7% of the total vote,” Paterson said of the Guardian Angel founder.

“Curtis has really got to start thinking about what he says when he opens his mouth these days. Because he’s really antagonized a lot of people and didn’t help the possibility [of Cuomo winning].”

President Trump, the defacto head of the Republican Party, even said Sliwa had no shot to win and that his presence in the race would only benefit Mamdani — leading him to endorse Cuomo, saying he preferred a “bad Democrat” over a “communist.”

But Sliwa scoffed at all the criticism to The Post, pointing out that Democratic nominee and now Mayor-elect Mamdani received just over 50% of the vote so the extremist mayor-elect would have won against Cuomo anyway.

“They can’t add. They must have failed math in school. They need remedial math,” Sliwa said of Catsimatidis and Paterson.

“If every one of my supporters voted for Cuomo, Mamdani still would have won. Shame on [Catsimatidis and Paterson]. I deserve an apology.”

Sliwa said he won’t return to WABC radio after Catsimatidis and his radio hosts turned against him and did Cuomo’s bidding.

He claimed he will never listen to WABC radio ever again.

“I listen to WOR radio,” Sliwa said.

Asked about future employment prospects, Sliwa said, “we’ll be fine.”