let's talk with kimberly dozier of "the daily beast." is there truth in what they are saying there that congressional action would impede in some part u.s. international relationships internationally? >> what mauck docdonough is says adding to the pressure to the final two weeks in geneva. iran is pushing harder for a faster lifting of both u.n. sanctions and the iranian negotiators are under pressure too from their own hardliners. every time something like this comes out of republicans in the u.s. congress, the hardliners say to their negotiators why go ahead with this deal at all because these u.s. lawmakers are going to force the u.s. to repeal it any way. >> so why do you think congressmen are so determined to get into this at this stage right now? >> well, even though the white house has said it will bring this -- any comprehensive deal to congress to vote on republicans in congress would like to derail a deal that is part of their maneuvers all along. so every time they can add friction to the talks, that's what they have in mind.

let's bring in cnn global affairs analyst kimberly dozier.talking to a veteran on the show he wasn't actually as alarmed by this is the first known veteran to try to go join isis. more alarmed by the fact this guy had knowledge of planes and worked with a major airline. that curious, and, number two, wondering about monitoring someone, going from u.s. kuwait egypt, turkey alarm bells. >> brooke, i'd have to agree with that veteran. this man was part of the air force pre- 9/11. a lot of procedures have changed and a lot of air frames have changed, so his military experience is probably less important. he did have knowledge of aircrafts. he had information, according to investigators, photographs on his plane of airplanes and things like airplane bathrooms and the spaces beneath the seats, as if he was planning an operation. the other concern is yes, turkey spotted him, but this shows the uneven relationship that u.s. an turkish counterterrorism officials had. they didn't alert u.s. officials right away. they sent him back to egypt. egypt has a

we have got cnn global affairs analyst and contributing writer for "the daily beast" kimberly dozierith us now. how much of that is true or is that just bluster from the white house? >> they have about two weeks to finish this deal in geneva, so anything like an additional sign from republicans in congress that they might throw the deal out the window adds pressure to those negotiations, specifically it puts pressure on the iranian negotiators from their own hardliners. hardliners in the religious administration in iran do not want this deal and seize on any possible objection to say, see? walk away. that is why you see the iranian negotiators pushing harder for a faster lifting of both u.n. and u.s. sanctions and that just ratchets tension up at the negotiating table. >> beyond the iranians, this just started. the biggest punch is when the 47 senators sent a letter over to the ayatollah. the foreign minister said this was a propaganda ploy and europeans have criticized and that is in front of the camera. behind the scene, the negotiators in the room, are they concerned about this fi

>> kimberly dozier great insight. thanks for joining us. i want to get back to this breaking news that we're following out of tunisia. eight people are dead after a shooting in a museum near parliament. this is a beautiful museum there. you can see folks here. they just have been out for a day of sightseeing and here they are running away from gunmen. two gunmen we're told by tunisian authorities. two men who appear to have entered in military garb. some reports that they may have been in camouflage and we have tunisian officials who are identifying them as islamist. all of this very fluid. all of this moving very quickly. new details coming into us. basically tunisia in north africa was sort of held up as this place where the arab spring started in 2010 but it's certainly had its issues as a breeding ground for islamism and tunisia you have seen more foreign fighters go to isis who headed to syria to fight for isis and so we're waiting to try to decipher this and figure out if we are going to be able to tell if there are links to isis. sor

let me bring in kimberly dozier a contributor to the daily beast. all right, good to see you, even in the context of this rough world of russian politics and intrigue because of the details of this murder and the person that we're dealing with this is already kind of included ingredients of immediate suspicion that that assassination or murder does indeed involve the russian government. >> that's what opposition protesters are saying that this has all the hallmarks of an officially sanctioned operation. now russian officials are saying that this smacks of a contract killing meant to embarrass president putin. what it will do is send another chill through russia's opposition saying that even one of these officials, these former officials who had a high profile in the west who was willing to speak out, not even he is safe. now nemtsov wasn't very popular with a lot of younger russians he was seen as kind of an old fogie, as one of the old guards putin. most russians are backing putin, according to the popularity polls and really are buying into the ru

kimberly dozier, thank you so much. we really appreciate your analysis. that after a quick break. hat is it that we can do that is impactful?" what the cloud enables is computing to empower cancer researchers. it used to take two weeks to sequence and analyze a genome; with the microsoft cloud we can analyze 100 per day. whatever i can do to help compute a cure for cancer, that's what i'd like to do. if you're running a business legalzoom has your back. over the last 10 years we've helped one million business owners get started. visit legalzoom today for the legal help you need to start and run your business. legalzoom. legal help is here. will decide if they want to stay with benjamin netanyahu for another term. election day will also reveal if netanyahu's recent friction with the white house will pay off for him politically. that disagreement is over iran's nuclear ambitions, but plenty of issues will guide israeli voters' hands on tuesday. our own elise labott has more. >> reporter: with an iranian nuclear threat stalled peace talks with the palestinia