support for that is contingent upon some evidence from the republicans that they are willing to consider this seriously and i think bob corker is but how many of his colleagues are and not just as an opportunity to embarrass the president or deny him a diplomatic breakthrough. if the president's able to pull this off, the whole world wins. we ought to be able to take a deep breath and say that's a good thing. >> bob corker of course chairman of the foreign relations committee. he did not sign that letter by the 47 republicans to the iranian leadership. senator, stand by. we have much more to talk about, including vladimir putin. what is he up to in russia right now?