Rand Paul on Iran nuclear deal: 'I'm going to keep an open mind'

Rand Paul, who announced his presidential run Tuesday, says he's skeptical of the framework nuclear deal with Iran, but is going to "keep an open mind."

"I do believe that negotiation is better than war," Paul told TODAY's Savannah Guthrie in an exclusive interview. "What I would say is that there has always been a threat of Iran gaining nuclear weapons, and I think that's greater now than it was many years ago. I think we should do everything we can to stop them."

Paul is the second U.S. senator to formally announce a White House run, following Ted Cruz, who announced his bid last week.

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