Jeb Bush on Donald Trump: He's a 'Chaos Candidate' and He’d Be a 'Chaos President'

Jeb Bush takes on Donald Trump during the last GOP debate of 2015.

"As far as other people, like in the migration where they're going, tens of thousands of people having cell phones with ISIS flags on them,” Trump said. He added, "And if I'm president and if Obama has brought some to this country, they are leaving. They're going. They're gone."

"Donald, you know, is great at the one-liners. But he's a chaos candidate. And he'd be a chaos president. He would not be the commander-in-chief we need to keep our country safe,” Bush declared.

Rubio said, "We must deal with this threat of radical Islamists, especially from ISIS,” while Cruz said that he understood why Trump suggested what he did.

Bush’s response didn’t go unanswered, however, as the front-runner had some choice words for him.

"Jeb doesn't really believe I'm unhinged. He said that very simply because he has failed in this campaign. It's been a total disaster. Nobody cares. And, frankly, I'm the most solid person up here,” Trump said.