i want to bring back in cnn's joe johns and elise labott and also josh rogan. i found it interesting that secretary of state kerry talked a lot about unity. he began his speech his opening statement by saying america is strongest when we act together. politics must stop at the water's edge. i hope we can accomplish that today. why do you suppose he started his statement that way? >> well i think he knows, carol, that this congress is divided not necessarily about the need to combat isis or that the u.s. should be involved but about how this mission should be undertaken and what the strategy is. clearly republicans are looking for a broader mission. much more robust and democrats are worried that this will turn into mission creep and get the administration into another long drawn out war it can't get out of. i think even in the statement you heard from the chairman and ranking member bob corker and senator menendez bob corker was talking about how aumf as it's written signaled a lack of commitment. senator menendez was talking about how this can't be an open end

. >>> now outfront our political analyst view josh rogan.as a deserter from the beginning. the army no person goes left on the field. we'll bring him home. do our own investigation. but the president put his face on this. made a huge deal about getting his release, public rose garden announcement with his parents, getting five taliban commanders in exchange for beau bergdahl and here's what the president and his national security advisor said at the time. >> and he wasn't forgotten by his country. because the united states of america does not ever leave our men and women in uniform behind. >> he served the united states with honor and distinction. >> susan rice he served with honor and distinction. that's what he said and now charged with desertion. isn't this a problem for them? >> it is and an ongoing problem for the white house for two reasons. one, despite the fact that there were a lot of people involved in the negotiation and implementation of this it was president obama's decision. he knew it would be controversial. both because he wa

the political analyst, josh rogan is joining us.heard what the senator has to say. 46 of his republican colleagues agree with him. the white house, a lot of democrats are furious about what they say is an inappropriate intervention at this delicate moment. how did this letter originate? >> tom cotton the freshman senator, war veteran on the services committee came up with the idea. but what's remarkable is he was able to get the entire republican leadership three presidential candidates to sign on showing that most of the gop caucus insists that congress have some role to play in this deal. the letter is addressed to the iranians but it's also a clear message to the president that they're very frustrated that they think the white house has figured out a way to keep nem from meanening oversight of the deal. they're trying to influence the kbron going negotiations in geneva. we're told that negotiations are near the end, a deal is coming. and this is the last chance for people in washington to oppose the terms of the deal. >> the whit