attention on those negotiations and adds into the conversation the voice of the opposition, of the opponents. had they not had this particular moment, they wouldn't have been behind the podiums and all of the shots would have been of kerry and the negotiateing and people talking on capitol hill. it puts them square in the middle of the conversation, which is a challenge for the white house. >> and you raise the term opponents. one of the biggest opponents, senator tom cotton. he authored that letter written by 47 senators sent to the ayatollah. this is what he had to say today. take a listen. i'm going to get chris' reaction on the other side. >> this is not the way you negotiate from strength. i don't know finanyone who has an ounce of sense that would negotiate like this. you have to walk away from the table and reapply leverage to iran. the fact we're not doing that that we're still sitting in switzerland negotiating when three of our negotiating partners have already left just