WATCH: Michael Avenatti trashes Rudy Giuliani's 'completely dissolved and disoriented' interviews

Attorney Michael Avenatti bashed President Trump's lawyer Rudy Giuliani in an interview with MSNBC's Lawrence O'Donnell.

"He has Avenatti on the brain," O'Donnell said. "What have you done to him, that he cannot get through an interview that isn't about you without railing against you?"

Avenati's friend told him that he is living "rent free in Giuliani's head."

"I am living rent free in his head, and they don't even know which way is up," Avenati said.

Avenatti unloaded on Giuliani "disoriented" media performance on CNN's "New Day.”

"It gets worse and worse by the week," Avenatti said.  "This morning I saw a guy that's completely dissolved and disoriented. I don't know that you could have a worse performance than Rudy Giuliani's this morning.  This is the best the president of the United States, can make for legal representation with all of the lawyers in America?"