Trump told Fox News host Bill O'Reilly that he thought the deal with Iran was the "worst deal I've ever seen negotiated," adding that "I think it was a deal that never should have been done.""It's a shame that we've had a deal like that, that we had to sign a deal like that and there was no reason to do it. If you're going to do it than have a good deal."When asked whether it was possible he would "tear up the deal," Trump said "let's see what happens.""I can say this," Trump said, "they have total disregard for our country, they are the number one terrorist state, their sending money all over the place and weapons. And they can't do that."