Billionaire T. Boone Pickens is pledging his support, and deep pockets, to presumptive Republican presidential nominee Donald Trump.

Pickens also said he agrees with the candidate's plan to temporarily ban Muslims from coming to the U.S.

Pickens announced his support Wednesday at a hedge fund conference in Las Vegas.

"Yes, I'm for Donald Trump. … I'm tired of having politicians as president of the U.S.," he said, according to The Wall Street Journal. "Let's try something different."

Pickens agreed with Trump's controversial plan for a complete shutdown of Muslims entering the country.

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"We've got to know. … We've got to have a better policy on bringing people into the U.S.," he said. "It's kind of like, 'Just wander in.'"

Trump has backed down from that policy, calling it just a "suggestion" in a Wednesday Fox News Radio interview.

Pickens previously supported Jeb Bush's campaign, to which he donated about $100,000. After Bush dropped out, Pickens also gave money to the campaigns of Carly Fiorina and Ben Carson.

Pickens authored a blog post critical of the "circus" into which he said the election cycle has devolved.

"We have people running for president now who don't even have experience running a lemonade stand," he wrote. "We've turned our presidential selection process into a reality TV show. Hell, it's worse than reality TV. Why? Because this reality TV show is about the selecting the leader of the free world."

Pickens said he did not know what to think of Trump's campaign at first.

"I didn't think he was serious," Pickens said, according to CNN. But he said. "(Trump) knocked 'em all out."

And if Trump is elected president, and it doesn't work out so well?

 "I'm ready to take a chance on it," Pickens, 87, told The Wall Street Journal. "And just in case it's a mistake, (I'll) be gone."