President Trump quoted a lawyer from O.J. Simpson’s legal team to back up his argument that special counsel Robert Mueller should never have been appointed because there was no “probable cause” for collusion or obstruction of justice..

“Special Council is told to find crimes, whether a crime exists or not. I was opposed to the selection of Mueller to be Special Council. I am still opposed to it,” Trump wrote on Twitter Wednesday​, misspelling Mueller’s title.​

“I think President Trump was right when he said there never should have been a Special Council appointed because there was no probable cause for believing that there was any crime, collusion or otherwise, or obstruction of justice!” So stated by Harvard Law Professor Alan Dershowitz​,”​ he said in a series of tweets.

Dershowitz, who was part of Simpson’s “Dream Team” at his 1995 murder trial, made the comments Tuesday on Fox’s “Lou Dobbs Tonight.”

Trump attacked Mueller’s investigation into Russian meddling in the election and any collusion on the part of the Trump campaign over the weekend with such ferocity that many believed he was near firing the special counsel.

GOP Sen. Lindsey Graham even warned Trump that dismissing Mueller would be the “beginning of the end of his presidency.”

Ty Cobb, Trump’s personal lawyer, tamped down the speculation by releasing a statement on Sunday saying the president “is not considering or discussing” firing Mueller.