it's going to be seen as one side as victory and one side surrender or cap it lags by the other side. they have to play a very very delicate game on the one side showing home constituencies that they are doing better than the other side and on the other hand, keep them engaged going forward. so there's going to be much more sleepless nights and a lot of marathon negotiations as we move forward and i think as congress and hard liners in iran begin to push back you're going to see both sides react at a negotiating table to the pressure that they are feeling at home. >> is there any question -- you know iran so well, that the iatola, any doubt in your mind he has signed off on what has agreed to. >> he has signed off on negotiations going forward and signed off on a deal that would respect the red lines that he has put down.