Well start with the latest on the u. S. President ial race and an apparent revolt by some republican candidates. Aides from naum ber of campaigns plan to meet sunday in washington. They want to try to take more control from the Republican National committee. The rnc has not been invited to the meeting. A few candidates angry with cnbcs moderators and their questions in wednesdays debate, including the frontrunner, ben carson. Despates are supposed to help the people get to know the candidates and get to know whats behind them and what their thinking process is, what their philosophy is. And what what its turned into is a gotcha. Thats silly. Thats not really helpful for anybody. During the debate, one moderator asked dr. Carson about his ties to a controversial dietary supplement company. The entire neurosurgeon called it total propaganda that he had a tenyear relationship with the company. So drew griffin with our special Investigations Unit did some digging. Ben carson says he doesnt have a special relationship with mannatech, but whatever he had sure has been profitable. Since 2004, carson has delivered four paid speeches on behalf of the company. A company that sells vitamins, minerals and something it calls glyco nutrients through mannatechs nationwide system of the distributors. According to a Speakers Bureau in washington, he was paid 42,000 for just one of those speeches. Listen to what he said in this speech in 2004. Let me just briefly delve into how i became associated with the products of this company. Reporter sound like someone with no relationship to the company . Carson goes on in this speech saying supplements helped cure his prostate cancer. And in 2014, he gave this interstrew, done with a Company Representative with the companys products on full display. The its produced with music and video overlays of the companys product. I bhe gan to recognize that, yes, Traditional Medicine is good, but also looking at some addition of natural products, you know, making sure that people are well hydrated, making sure that people get the right amount of exercise. But mannatech, based outside of dallas is a company with a history of trouble, at least with one state regulator. In 2007, the state of texas filed this lawsuit, claiming Sales Associates lied with customers about the effectiveness of the suppleme supplements. The company says it knows there are illegal claims but refuses to stop making them. Two years later, mannatech settled without makiadmitting g. When they are studied they dont show any good. Its really difficult to prove that Healthy People are healthier if they take supplements. After the debate, carson insisted mannatech didnt pay him because he was paid by a Speakers Bureau to appear before sales conferences, including mannatech. He says he has no links to the company. It doesnt mean im endorsing them. It doesnt mean i have any special relationship with them. And there have been some group that was looked me multiple times. It doesnt mean that i have a special relationship or are involved with their product. They can easily go back and find out that i dont have any formal relationships with mannatech. We did check. All references from carson have been removed from the various mannatech websites, the company says to comply with Better Election Campaign laws. In a statement emailed to cnn, the company says, quote, dr. Carson chose to participate in videos while attending corporate event where is he gave his personal testimony. He was not compensated for his participation in these videos. Drew griffin, cnn, chicago. And a complete breakdown of the winners and losers, please head over to our website. Youll find erg there and a whole lot more than you could ever man. Cnn. Com politics. For the first time, iran will be at the table joining the u. S. , russia, saud rare yeah, and other nations trying to find a solution to the crisis. The main Sticking Point remains the future of president Bashar Al Assad. Western powers are pushing for a way forward without the syrian dictator, but russia and iran are his biggest supporters. And so far have showed no hint theyre ready to abandon him. The United Nations says the death toll at syrias civil war stands at 250,000. Meanwhile, the pentagon says the u. S. Troops are in combat with isis forces in iraq. Until now, the u. S. Has characterized the americn roll as advise and assist. But the death of a u. S. Commando in an operation has underscored the real nature of the u. S. Mission. Cnn pentagon correspondent barbara star has the very latest now from washington. Helicopter forces loyal to Bashar Al Assad pounding a suburb. Bodies retrieved from mountains of rubble. In the north near the flash point city of aleppo, Syrian Army Units repelled an isis attack according to Iranian State media. Russia has focused many of its attacks here in western syria, part of its campaign to boost assad forces. But the cia director insists the russians know there is no military solution. I do believe paradoxically they felt as though they had the strength in assad before, in fact, he moved out. And despite what they say, it leads the russians to not see assad in a syrians future. It could eventually mean more u. S. Boots on the ground, closer to the frontlines. We wont hold back in supporting capable partners in opportunistic attacks against isis or constructing such missions directly, whether by strikes from the air or direct action on the ground. From the u. S. Military, an admission that u. S. Troops are already involved in more than just advising and assisting. Its the name of the mission, combat air patrol. So of course its combat. The pentagon is expected to increase more intelligent sharing and communication support, especially for kurds in both Northern Iraq and Northern Syria. A key u. S. Goal helped the kurds in Northern Syria isolate in crucial areas around racca, isis selfdeclared capital. One being discussed is to put u. S. Advisers out in the field with smaller, more frontline groups of both iraqi and Syrian Kurdish fighters. And of course, that puts u. S. Troops closer to a potential frontline, closer to combat. Barbara starr, cnn, the pentagon. Retired Lieutenant ColonelRick Francona joins us now with more on this. Thank you for being with us. The u. S. Is willing to commit more troops if boots on the ground. Does this play into those talks in siena, washington is at least willing to up the anteif only a little . Yeah, i think it does, but thing these are two separate items right now. I dont see how one supports the other. Mr. Kerry is having these talks while the Defense Department is ramping up syria. I dont see how one supports the other. We dont have the warning, if you like to the iranians and russians if there is no resolution then the u. S. Is not going to walk away, that they will be more committed to the syrian free sources. I think everybody realizes that at some point in time, everyone is going to have to come to the table and sit down. The american operations is going to be antiisis operations. I think we backed away from supporting the antiregime rebels. Were focused on going after isis. And what were going to be doing with the direct actions the secretary of defense mentioned and our advise and assist missions are going to be focused on isis. I think were looking at syria as more of a longterm political shugs solution. Chairman mao said its always darkest before its totally black. Maybe now theres a glimmer of light that finally, if theres going to be a solution here, it has to involve the americans and the russians and it has to involve the iranias and the saudis . We have one group, the syrians supporting. Its interesting, you have the russians there, the turks and the iranians. We know where the russians stand and the iranians stand. Both want continued access to syria. His family comes from that shiaa area. Remember, iranians consider themselves guardians of all things shia. The russians, on the other hand, want access to have syria because of that naval port. They would be willing to through assad under the bus, as long as they have a say in the future of what happened in syria. Theyre working at cross purposes. The turks just want to make sure the kurds dont have a country. Do we represent the rebels . Im not sure. You say the russians are willing to throw assad under the bus. That would sort of be a pretty big change in policy, i guess. But at least now is there an ef evolution that assad can stay maybe just for at least a time . Thats going to be necessary . I think thats going to be the russian talking point, were willing to have some sort of transition government with Bashar Al Assad at the head. But eventually were going to look at some sort of mechanism that moves him out of there. Now the iranians may balk at that. But in the end, their National Interests are served by access to syria yeah. That can come in the form of a new government, a different government. It doesnt have to be Bashar Al Assad. I would say i would be worried riebt now for my future. Finally, with the word that were getting with the Defense Department these advise and assist role, everyone is involving mission creep. This is comparison to vietnam, right back into the quagmire again. Do you see it differently . No, i dont. I see these direct missions just exactly that. I think were going to see more in iraq. Advisers are the magic word that remember from vietnam. This is how it starts, john. Yes, we remember it well. A commercial padgett caught fire on the runway with 101 people onboard. Take a look at this. Thick black smoke engulfing the flight. 17 people were injured including one child. Heres cnns pamela brown with more on how the frightening incident unfolded. Engine on fire, engine on fire reporter smoke pours from a 757 as passengers scramble to the emergency evacuation slides. The flight was about to take off from port lauderdale airport. Were doing a 180 here and awaiting instructions. His left engine is on fire. His plane was loaded with passengers. They were taxiing to the north runway to depart for caracas. Moments before the fire, a pilot on another plane on the same runway noticed fuel was pouring from the engine. Hey, dynamic out of the left engine it looks like its leaking a lot of liquid, i dont know if its fuel. But fluid leaking out of the left engine. After the frightened passengers scurried down the planes chute, some were taken away on stretchers and wheelcha wheelchairs, while others were anyone to walk away from the jet. The Fort Lauderdale airport was quickly shut down. Stunned passengers on oh planes filmed the scene unfolding. The emergency crew extinguished the fire before investigators could move in to find out what happened and why. Its not something you can readily determine from the cockpit. Its just not possible to see that until you have a fuel loss situation. Dynamic started just five years ago in greensboro, North Carolina, and only goes to two International Destinations from the u. S. Venz go ahead and giana. Its fleegt consists of boeing 757s. The plane that caught fire was 29 years old. It was a similar scene in las vegas last month when a British Airways planes left engine caught fire on the runway. 13 of the 159 passengers were taken to the hospital, mainly from going down the planes slides. Cnn, washington. Now the video you wont see on any other tv network, a new view inside a Texas Restaurant y a deadly biker brawl broke out in may. You can see bikers open fire. Others running for their lives. Police say they confiscated 480 webs that day. One officer wrote in his report that there were so many gun, nooif, brass knuckles and other weapons they got in the way of the crime scene. One biker said harsh words turned into flying fists and then gunshots. It was ho riffic. I looked to the guy to the left of mine. I said weve got to get off the sidewalk or were going to die here. Close to 200 people were arrested almost six months ago. No one was charged in relation to the nine people who were killed. Still to come on cnn, when one becomes two. China announces an end to one of the worlds biggest attempts at social engineering. Also, there are millions of pieces of space junk floating around the earth and one piece is about to come crashing down. All those details a little later this hour. 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Vo which is why being put first takes some getting used to. Nationwide is on your side nationwide is the exclusive Insurance Partner of plenti. For decades, chinas communist government has restricted most families to one child, but now couples will be allowed to have two children. Officials say its because of chinas aging population. In the next 15 year, its estimated chinese aged over 60 years will number more than 400 million. Chinas population right now is more than 1. 3 billion. Steven jane joins me now live in beijing. He is an only child himself. So i guess steven when you heard the news from the communist party, did it come as much of a surprise to you and i guess the rest of the country . Well, it was more surreal moment when it was reporting the breaking news as a member of the first generation of that policy talking about the end of that policy. Now, when i was growing up in shanghai in the 80 s, we accepted this policy as a matter of fact. We were taught about it and we bought the government line that the millions of preventive births because of this policy helped china grow its economy and improve its peoples living standards. So it was not until years later that i found out the more sinist sinister, the darker side of this policy, especially in terms of the brutal enforcements in the country side. Were talking about forced abortions and forced sterilizations. Thats why a lot of activists and ngos dedicated years of their efforts trying to change this policy. Now change has come, but not probably because of the reasons they would like to see. The government is changing its policy to address a demographic change. Theyre facing an aging society at a time the economy is slowing down. The party made it very clear in that document they released after a fourday Leadership Meeting, they are making one couple two children a nationwide policy so address the aging population and to promote a more balanced population growth. John . Very quickly, steven, what was it like living as a generation of only children . I got to say as the early generation of that policy, we were not spoiled. We still lived very close to our peers and playing and studying together. Just like siblings of the huge household, unlike later generations who probably felt a lot more lonely in their luxury high rise apartments. John . That is so not true, i know you. I know you were spoiled growing up. I used to live in beijing. I know that. China has been hinting that this day may not be too far away, but just because chinese families will soon be able to have more than one child doesnt necessarily mean they want to. Every chinese family revolves around a child. Like both her parents before her, tao is an only child. Once my cousin visited and we shared a bed for a few nights said her dad. I really enjoyed that feeling and i wished i had a brother. But for decades, the communist party has relentlessly pushed its one child policy. When propaganda like this didnt work, they used heavy fines and forced abortion to curb population growth. Now some experts call the onechild policy a glaring mistake. China has already began to feel an unfolding crisis in terms of its population change. The one policy gambled with the economic future. The worlds second biggest economy faces a rapid aging population and shrinking work force. Just 15 years, it will be more than 400 million elderly here in china. And many chinese feel the one child policy is out of step. So the party has changed its tune. Pushing a new ideal family on tv with a daughter and a