U. S. Politics, republican and congressman paul ryan reluctantly coming forward to take on the job as speaker of the house of representative. He made the announcement a few hours ago. But he says there are conditions. He wants support from three key factions within the party. And he says hes not willing to give up valuable time with his young family. Ryan says he plans to make his decision within the week. This is not a job ive ever wanted and ever sought. Im in the job ive always wanted here and congress came to the conclusion thats in a very dire moment, not just for congress and the Republican Party, but for our country. And i think our country is in desperate need of leadership. I asked republican strategist Leslie Sanchez if paul ryan can unite the republicans. The issue is this fraction between the conservatives and the Establishment Republicans and can he bridge the gap. Hes seen as a national figure, a big leader. He has conditions to accept this position, but i think if anybody can lead this party, its certainly paul ryan. He understands the national, demographic, cultural, the changing landscape and the politics involved. Across the aisle, Vice President joe biden is still stoking speculation he could soon join the race for the white house, but it seems hes already started a campaign of sort against the current democratic frontrunner Hillary Clinton. The senior washington correspondent has our report. Joe biden spent the day reminding people hes one heart beat of presidency. They went around the room. Leon panetta said go. And bob gates who already publicly said this said dont go. He said he had the last word with the president , not Hillary Clinton who said she advised the president with the high stakes raid. I was the one who said go ahead. His advisers were split. It was a very risky operation. Biden didnt stop there. He said he had a hand in every decision, even choosing clinton as secretary of state. Polls show biden in a distant third and more advisers say he shouldnt run, the Campaign Goes on. He says he doesnt always think republicans are the bad guys. I dont think my chief enemy is the Republican Party. This is a matter of making things work. Hillary clinton was asked to name her enemies. In addition to the nra, the Health Insurance companies, the drug companies, the iranians, probably the republicans. Cnn, washington. Joining me now is bill carrick, hes a Democratic Political strategist. Were now at the point where he has to fish or cut bait. The more this goes on, the more good will he loses in the party . I think obviously these deadlines are coming up very quickly. And thats the one structural thing he had to deal with. I always felt like he could raise money online and in the donor race throughout the years. Hes got to beat these deadlines. He doesnt have any choice. Hes got to make a decision here quite quickly. He cant blow off entire states like the size of texas or georgia. Its ridiculous. Weve got a situation where its pretty clear that part of biden really, really wants to run. Then theres a conflict where another part of him is reluctant or hesitant. If he cant resolve that conflict soon, or maybe because hes taken so long already to resolve this conflict within himself, has his window of opportunity closed, has he missed the point . We have a new batch of polls that will deal with the reality of the Vice President of the United States run, a guy whos very popular in the party, and obviously been the object of an outpouring of national sympathy. He also framed this saying leon panetta was gung ho to go do it and bob gates, the former secretary of defense was equally adamant not to do it. Its too risky. Fall ryan if he does get this job, is he the guy . Is he going to be conservative enough for the ultra Tea Party Freedom caucus part of the republicans. Paul ryan said okay, if you people promise to behave ill get behind my leadership and well be one effect i have Republican Party. I isle do a job i really dont want. Bill, good point. We appreciate you coming in. Thank you, nice to see you. A new cnn poll shows two republican president ial candidates soaring above all of the other rivals, donald trump is holding a strong lead over ben carson. Dana bash has the latest on the republican race for the white house. 2 3 of gop voters now say trump and carson are their first and second choice according to cnn orcs new poll. We are both resonating, theres no question about it. Reporter its not just that trump and carson have support, its that their supporters are excited about them. Which makes them more likely to actually go out and vote. 30 of trumps supporters are very enthusiastic. 25 of carsons. By contrast, only 3 of jeb bush voters are enthusiastic about him. We need to be much more forceful both here to protect the homeland as well as overseas to create a strategy to unite the world against this great threat. I dont believe donald trump has the capability of doing that. Just two weeks ago on the same cnn program, he said the opposite. We made a terrible mistake getting there in the first place. We had brilliant thinkers that didnt know what the hell they were doing. When reminded of that today, trump denied flip flopping. Look, afghanistan is a different thing. Its neck to pakistan and pakistan has nuclear weapons, okay . The trump confusion and controversy has not hurt him in the past. Despite questionable remarks about women, appearing to make fun of Carly Fiorinas face, hes tied with female republican voters. I think women all over the country heard very clearly what mr. Trump said. As for fiorina, the only female candidate in the republican race served after a strong debate showing last month has ended. Dana bash, cnn, washington. We have this into cnn, a new York City Police officer is shot in the head while chasing a gunman in east harlem. He was responding to reports of gunshots. The plane clothes officers exchanged fire with a suspect who was arrested and treated for gunshot wounds to his leg. Ban kimoon will meet with palestinian leaders in the next two hours. He appears at a conference with Benjamin Netanyahu. We need to keep the situation from from escalating into a religious conflict. It does seem no end from the attacks from the palestinians and the tough security measures from the israelis. Another act of violence this morning in the west bank. A 15yearold girl was shot while she was, according to israeli officials, trying to approach an Israeli Jewish settlement with a knife. We dont know the status of that 15yearold girl just yet. But as you touched on the cycle of violence shows no sign in the foreseeable future. Is this the new normal . Random knife attacks carried out by individuals seeking to harm israeli citizens, police, soldier, attacks seen with such frequency over the last two weeks. They continue, and that would mean the very tough restrictive Israeli Security measures continue as well. Including the effective lockdown that exists around some fall stinian communities in East Jerusalem. The other option, well, thats even more grim. Tensions as high as they are, it could almost be triggered at anytime. At this point are speeches and calls for calm pretty much next to useless . And if so, then where does that leave the situation as to what needs to be done within the israeli leadership and the palestinian leadership . Well, so you have the u. N. Secretary general having a go at trying to calm the u. S. Secretary of state is going to try his hand here as well. Perhaps these International Figures could convince the palestinian leaderships to dial back their language a little, perhaps trying to denounce some of this violence, but no real hope thats going to happen. The reality is on both sides, theres the belief that the other is talking and behaving in ways that is only exacerbating this con in incompetent, this cycle of violence, if you like. So the israelis blame the palestinians for using what they say is enormous incitement for effectively encouraging the terror and violence thats taking place here, the hatred of jews, they say. The palestinians, well, they believe that this is all part of the anger and frustration over what they perceive as the wider Israeli Occupation of their territory. Disproportionate security responses, israeli oppression and so forth. This is where were at. The grievance in a sense are very old. Theyre just more retractable now than perhaps they have been in a long time. Theres no sense of any negotiation or Peace Process moving forward from here. Theres not even an agreement on both sides as to whether that will make any real difference to the security situation on the ground. So again no real optimism, any sort of talk or negotiations at this very preliminary level at which theyre taking place would really have any major impact here, john. Thank you. Phil black live. 8 15 on a wednesday morning there in jerusalem. Russias air campaign in sere i cant have as the kremlin presents back home. Also deep in the norwegian mountains a place that Scientists Say could save us all from a Global Crisis. Its like out of a movie. This is a place to pause and to think. Its a very unique place and important place for humanity. If you cant put a feeling into words, why try . Philips sonicare leaves your mouth with a level of clean like youve never felt before, making it the most loved electric toothbrush brand by americans and their dentists. Innovation and you. 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Censored, not censored. Introducing the Samsung Galaxy s6 edge and the note5. Justin trudeau and barack obama agree to build on their countries already strong bond. But the Prime Minister also told the president he will pull canadian jets from the fight against isis. Canadian forces involved in training and humanitarian aid will stay. I spoke with president obama and we talked about canadas continued engagement as a strong member of the coalition against isil, and i committed that we would continue to engage in a responsible way that understands how important canada has as a role to play in the fight against isil. Russia is not letting up on defenses in syria. The Defense Ministry said there were 60 air strikes on isis during a 24hour period. The government is releasing a new video to bolster support for the military operation. Slick, highly professional and divoid of casualties. The stunning drone footage was shot in a devastated eastern suburb of damascus. Meanwhile, russias leaders bang home their message. The countries of the middle east, terrorists have been making plans to expand to destabilize entire regions. 370 People Killed so far, including 127 civilians. Arms dutches are among the daily targets being hit, as well as frontline positions of isis and other rebel groups. Russia and the u. S. Reached an agreement for but theres no agreement on what a safe distance should be. A snowy fortress may seem like an odd choice for the Largest Selection of crops on earth, but thats exactly where the world places its seed samples and its fate. Reporter rooking more like a villains layer in a james bond movie than where humanity has banked its seeds of survival. We walk into a long cement forboding hallway. Safety helmets line the wall, protection against falling ice. Michael guides us deeper into the mountain. With each step, the temperature drops. Its like something out of the movie. This is so beautiful and yet its so simple. Its just a door. But behind it is the key to humanitys salvation. You get boxes from germany, from nigeria. Thats an interesting box right here. This box comes from the Democratic People of the republic of korea. The only wooden back in the vault. This is humanitys insurance policy, meant to safeguard against cataclysmic events that wipe out our crops. Its not adapting as fast as the climate is changing on us. We have to adapt to rising temperatures, to wind and storm and flooding. New diseases and pests. We have salt water coming into the rice patties in the fields. So this tolerances to these issues are found here. You dont know whats going to happen 500 years from now. Even if power goes out, the vault can preserve these seeds for decades. In the race against climate change, protecting our past may be the only way to ensure our future. Still to come here, an Animal Rights group says hong kong is a major player in the illegal ivory trade and how dealers get around the law. 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Call today or go online to schedule your Second Opinion here. Learn more at cancercenter. Com it has just gone 10 30 on a tuesday night in los angeles. And you are watching cnn newsroom. Well check the headlines. Up secretary been a kimoon is imploring israelis and pal stinlians to stop the spiraling violence. Mahmoud abbas will meet with him in just a few hours. Canadas newly elected Prime Minister designate spoke by phone with u. S. President barack obama, Justin Trudeau and the president agreed to deepen already strong ties with the two country ps. But mr. Trudeau also made it clear he will pull canadian fighter jets oit of the fight with isis. U. S. Republican congressman paul ryan says hes willing to replace john boehner, the retiring speaker of the house of representatives. But first, he wants the support of three key groups within the party. He also wants to make it harder to overthrow a sitting speaker. He says hell make a final decision within the week. Hong kong has long been suspected of playing a legal role between africa and china of illegal ivory smuggling. Now theres video showing Hong Kong Ivory traders offering illegal sales and getting around those legal restrictions. We have more on this and ivan, really hong kong is often seen as a weak link globally in so many ways. Earlier this week, britains Prince William issued a speech in which he warned at the current rates of killing, the wild African Elephant could be extinct on the african continent within a generation. And, of course, the poachers are going after that very valuable elephant ivory tusk, which isle illegal to be traded across borders. What many people may not know is that ivory is bought and sold openly here in hundreds of shops, licensed shops in hong kong. A long investigation by a Nature Conservancy group has concluded with the a