One of Florida’s biggest conservative Republican moneymen — and a billionaire backer of Jeb Bush — is so disgusted by Donald Trump’s candidacy that if he has to, he’ll do the unthinkable:

“If I have a choice — and you can put it in bold — if I have a choice between Trump and Hillary Clinton, I’m choosing Hillary,” Miami healthcare magnate Mike Fernandez told the Miami Herald on Friday. “She’s the lesser of two evils.”

Outraged by Trump’s unimpeded ascent, Fernandez is taking on the GOP frontrunner himself. He purchased a full-page ad in the upcoming Sunday edition of the Herald calling Trump a “narcissistic BULLYionaire with a hunger to be adored.” He also likened him to some of history’s bloodiest demagogues.

“You have no idea how furious I am with my friends in the Republican Party who have embraced this guy,” Fernandez said.