Whack job lefty actor Tom Arnold went on a bizarre pro-Nazi tirade outside of Craig’s restaurant in Los Angeles, California this weekend and even predicted Donald Trump would resign as president.

“You think Trump will get re-elected?” Political consultant Michael Gruen asked Tom Arnold.

“Trump’s gonna f*ckin quit…he’s gonna get very frustrated..I’ve always predicted he’s gonna quit — he’s not gonna want to get his ass kicked in 2020,” Tom Arnold said slurring.

Tom Arnold then went on a pro-Nazi, homophobic tirade when he was asked if he would “endorse a white person.”

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“I would endorse a f*cking Nazi against Trump,” Tom Arnold said drawing audible gasps from people standing near him.

“He’s [Trump] a coward, he’s a traitor and he doesn’t stick up for his country…he’s a white supremacist,” Tom Arnold said.

“He’s supposed to have America’s back — he doesn’t have our back…the world depends on America, so how can we depend on America — we can’t have our number one guy is full of shit and he’s sucking Putin’s dick every other G****** day!” Tom Arnold said, adding, “Russia is a shit hole! Russia is a shit hole!”

This guy is insane.

President Trump has actually put the toughest sanctions on Russia. The Treasury Department under Trump, not Obama, sanctioned and designated Russian oligarch Oleg Deripaska last year.

Obama is the one who was caught on a hot mic back in 2012 telling Russian president Medvev that it was important to let incoming president Vladimir Putin know that he would have more flexibility after his election.

“This is my last election,” Obama said. “After my election I have more flexibility.”

“I understand,” Medvedev said. “I will transmit this information to Vladimir.”

But President Trump “sucks Putin’s d*ck” according to Tom Arnold.

Tom Arnold backed down as he was getting into his car and said that he was just joking and really wouldn’t vote for a Nazi…

WATCH (language warning):