president trump will. but that doesn't take you out of the deal. the president has to decide he's going to exit the deal. some people are saying let's not certify, but stay in the deal. that's a big mistake. that is a one shoe on, one shoe off approach to diplomacy. president has got to be very clear here. one said to ferdinand marcos as he was asking should i resign as president of the philippians, he said cut and cut clean. and that's what presidential leadership is about. he needs to not certify and to get out. >> harris: i wanted to ask this follow-up question. just real quickly to what you're saying, ambassador. it sounds like you are saying that we have reached a point with iran now and certainly from what the lead inside to the story that i told the audience, they may do what they want to do regardless of the deal that's on the table. >> john: they are doing what they want to do. >> harris: so why not threaten to take it off the table? is it problematic? the president's critics are saying that's going to force iran to be in a position to do