"I've heard a lot of people say, 'We're going to rip up the deal.' It's very tough to do when you say, 'Rip up a deal,'" Trump said Sunday on NBC's "Meet The Press."
Instead, the businessman who is currently leading GOP polls in the race for the White House promised to "police" Iran to make sure the country doesn't break the terms of the agreement.
"You know, I've taken over some bad contracts. I buy contracts where people screwed up and they have bad contracts," he said. "But I'm really good at looking at a contract and finding things within a contract that, even if they're bad, I would police that contract so tough that they don't have a chance. As bad as the contract is, I will be so tough on that contract."
Every Republican presidential candidate except Jeb Bush has promised to rip up the deal on the first day of their presidency. Trump argued that it would be unrealistic to do so because it would be hard to recoup the estimated $150 billion windfall Iran would gain after the lifting of sanctions.
"And the problem is by the time I got in there, they will have already received the $150 billion," he said. "Do you know if the deal gets rejected they still get the money? Which is something I found out a week ago. I couldn't believe it. If the deal gets rejected, they still get all of this money. Iran is going to be unbelievably powerful and unbelievably rich."