"Donald Trump said that he would scrap the deal. Frankly, I don’t think he understands what the deal is all about. I don’t think he understands very much at all about Iran, unfortunately," McAdams said. "He does have his own neo-con[servative] advisers around him that are very aggressive toward Iran. So, I think Trump is more likely to do something to damage the deal, to undermine the deal."
McAdams claimed it was not likely the US Congress would be able to do anything to prevent Trump from damaging the Iran nuclear deal.
"The US president, certainly since 2000, but really longer than that, has taken on a role, a level of power far beyond what the Constitution allows for him or her to have… Unless Congress wakes up and tries to reign in presidential power, I don’t think Congress would be much of the impediment for him to do something to undermine the Iran deal," McAdams added.
On July 14, 2015, Iran and the P5+1 group of countries comprising the United States, Russia, China, France and the United Kingdom plus Germany reached a deal ensuring the safe nature of Tehran’s nuclear program in exchange for sanctions relief.