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It didn't take long for Donald Trump and Jeb Bush to clash at the GOP debate Tuesday night. 

In one of the more memorable face-offs of the night, Bush slammed Trump's proposal to ban Muslims from entering the U.S.

"Donald is great at the one-liners, but he’s a chaos candidate, and he’d be a chaos president," Bush said. 

Trump countered by calling Bush's campaign "a disaster" and noting his massive lead on the former Florida governor in national polls.

Speaking to Sean Hannity, Bush said he's received an "outpouring of support" for his challenge to the GOP frontrunner, repeating that Trump "is not a serious candidate."

"We have grave threats to our national security.  As I said, Donald Trump is a capable guy, he’s a smart guy, but he doesn’t have any ideas about how to keep America safe. The idea that you would ban all Muslims makes it impossible to build the kind of coalition necessary to destroy ISIS, for example. But that’s just one of many points that I think it’s appropriate to bring up," he said. 

Bush criticized Trump for vowing to "bomb the you-know-what" out of ISIS without presenting any actual plan for how he'd go about it. 

Watch the interview above, and hear from Donald Trump, tonight at 10p/1a ET on "Hannity."

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