​President Trump mocked Chris Cuomo on Tuesday after a video surfaced showing the CNN anchor get into a shouting match with an unidentified man who referred to him as “Fredo,” the fictional character from “The Godfather.”

“I thought Chris was Fredo also. The truth hurts. Totally lost it! Low ratings @CNN​,” Trump posted on his Twitter account.

Trump’s tweet comes after the viral video shows the cable news host confronting a man who called him “Fredo,” the weakest of the Corleone brothers in “The Godfather” series.

“Punk ass bitches from the right call me ‘Fredo.’ My name is Chris Cuomo, I’m an anchor on CNN,” ​he tells the man in the video​ that began to appear on Twitter Monday evening.

“Fredo is from ‘The Godfather,’ he was a weak brother and the use of it to an Italian is disparaging,” ​Cuomo said, comparing it to the use of the N-word to refer to African Americans.

The man in the video tells Cuomo that he thought that was his name.

Cuomo, the son of former Gov. Mario Cuomo and brother of Gov. Andrew Cuomo, shoots back, “Own what you said” before threatening to “throw you down these stairs like a f–king punk.”

CNN told The Post that the newsman was just defending himself “when he was verbally attacked with the use of an ethnic slur in an orchestrated setup. We completely support him.”