A Jewish billionaire, who has donated to Democratic and Republican presidential campaigns, is threatening to leave the country if Republican presidential frontrunner Donald Trump wins the presidency.

“I’ll either move out of the country or join the resistance,” Barry Diller, CEO of IAC/InterActiveCorp (IACI), told Bloomberg Politics in a recent interview.

The media mogul attributed Trump’s success thus far to the “phenomenon of reality television as politics.” Adding that “all he is is about conflict, and all that he is is negative conflict. He’s a self-promoting huckster who found a vein. A vein of meanness and nastiness.”

But Diller said he’s convinced he won’t have to carry our his threat since Trump will not be elected.

“Truly, I’m not moving, and I don’t think I’m joining the resistance,” he said.

“I don’t think it’s got anything to do with American anger at the elites,” he asserted during a conversation at the Bloomberg Markets Most Influential Summit. “He has no communication strategy—except to be what he has always been, a nasty mean person criticizing people and doing, you know, silly kind of showman stuff. Where did he get a national reputation? From ‘The Apprentice.’ What did he do on ‘The Apprentice?’ He fired people.”

Recent polls show Trump with a commanding lead over his GOP rivals in key early primary states.

Diller has contributed to Barack Obama, Hillary Clinton and Joe Biden in the past, as well as to John McCain’s presidential campaign in 2008. According to the Federal Election Commission, he has also contributed to Senators Chuck Schumer and Cory, and Chicago Mayor Rahm Emanuel.

According to CNN money, Diller has not made any contributions in the 2016 elections so far.