The Iran deal shut down Iran's nuclear weapons program. Have you forgotten how Republicans were in a frenzy because they believed, perhaps correctly, that Iran was 12 to 18 months from having a nuclear weapon? Although Trump has repeatedly stated that it's a terrible deal, he hasn't identified a single aspect of the deal that he disapproves of. Based on his comments, it's pretty clear that he doesn't understand the deal and is incapable of speaking intelligently about it. If Corker had something to do with the Iran deal, we should thank him; he's a hero. Decertifying the Iran deal or making a show of decertifying and punting the issue to Congress will significantly diminish America's standing with its allies, further isolate the U.S., and further shred American moral standing in the world.