When Debate Moderator Asks 'Show of Hands' Question, Only Trump Raises His — Then Things Get Tense

Real-estate billionaire Donald Trump refused to pledge to support the Republican nominee and not run as a third party candidate Thursday during the first GOP debate.

Fox News moderator Bret Baier asked that candidates who refused to take the pledge raise their hand. Trump's immediately went up in the air.

"I cannot say. I have to respect the person that if it's not me, the person that wins," he said.

Immediately after, Sen. Rand Paul interjected and challenged Trump.

"This is what's wrong! This is what's wrong. He buys and sells politicians of all stripes, he's already hedging his bet on the Clintons!" Paul said.

Watch the Exchange:

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