this comes out we're out of the sanction regime that's not the way to get a strong deal for the west. >> senator kaine, to you here. there is a letter this morning from the white house chief of staff on behalf of the white house, addressed to senator corker. it has to do with potential legislation that you are also a co-sponsor to that has to do with congress' role in approving a nuclear deal. here is what denis mcdonough writes. we believe the legislation would likely have a profoundly negative impact on the ongoing negotiations, emboldening iranian hard-liners. moreover, if congressional action is perceived as prevent us from reaching a deal electronic will create disks within divisions within the international community, putting at risk the very intentions of iran what do you say to the president? >> i'm a proud co-sponsor of the legislation and, look, the white house is frustrated with congress because congress is taking action in the last few