the other thing is that he met with the north and south koreans together, so linking the south korean peace process with u.s. negotiations could yield some real dividends. the problem is now all that's left is the hard work. it's this so far i remember rec sill i can't believe problem where kim jong-un is not going to eliminate his nuclear arsenal by the end of trump's first term so we need a more reasonable approach. >> what, joe, do you think iran is thinking as they look on to all this? does the president at all send some sort of a message that, hey, having nuclear weapons puts iran in a more powerful negotiating position because look what's happening with north korea? >> it does, it sends exactly that message, alex, that if you have nuclear weapons i will treat you more seriously. i will solicit a meeting with you. but it also tends trump's message which is let's talk. let's talk. you can gain by having talks. the problem is iran is not north korea. they've seen what trump is doing