going to enforce it or are the iranians going to honor it. and so getting a vote, getting the deal through, is just the beginning of what will be a long difficult haul to make this into something that is meaningful and ultimately contributes to the stability of the region. >> david, stick away. i want to go to philadelphia and check in with elise labott. secretary john kerry just talking to christiane amanpour. he must be relieved today. >> reporter: well, i think the word he used was delighted. and he said we were getting messages that senator mikulski signed off on the deal and he said to me you know what that means, that means 34. and so obviously a very good day. but officials even coming up here said they're not taking any vote for granted. just because senators and congressmen say they will vote for the deal, we still don't know what will happen when they actually cast their vote. so they said they will be fighting for every vote and what