Energy stadium where the final four takes place tonight. Thats the backdrop. It is quite extravagant here. Coming up, all the excitement here plus my one on one face to face interview with basketball great grant hill about his amazing legacy and why hes leaving the door open for a possible new career path. And his advice to the players who were taking on the hard court tonight. First republican president ial candidates are waging a fierce battle in wisconsin three days away from the states. Live pictures of a kasich town hall in burlington. Crews had a standing only location with Governor Scott walker endorsing him. Most polls show cruz has a double digit lead over trump. Meanwhile, a crucial Gop Convention is taking place this weekend in north dakota. All 25 of the states delegates are unbound meaning they can vote for whomever they want headed into the National Convention come july. For cruz and kasich this is a race to take as many remaining delegates from trump who, to be frank, had a rough week after trump told Chris Matthews he believed women who received abortions should be criminally punished. He made several statements to walk back and clarify that stance. He appeared on cbs last night and said when it comes to abortion the law is set. You told bloomberg in january abortion should be banned. First of all, i would like to have this be a states right. I think it would be better if its a states right. Right now the laws are set. Thats the way the laws are. Do you have a feeling how they should change . There are a lot of laws you want changed. You talked about libel, torture. At this moment the laws are set and i thunk we have to leave it that way. Following that interview trump spokeswoman hope hicks said, quote, mr. Trump gave an accurate account of the law as it is today and made clear it must stay that way now until he is president. Then he will change the law through judicial appointments and allow the states to protect the unborn. There is nothing new or different here. Thats from the Trump Campaign spokeswoman. Larry tabido is here and matt lewis is a senior contributor to the daily caller. Good to see you. Still, will trumps back and forth on abortion this week hurt him at the polls . Larry . Yes. Hes likely to lose wisconsin. It isnt just abortion. Its four or five other things trump has done to himself. Hell pay the price in wisconsin. Fortunately for him the next primary in new york where hell probably do well. Wisconsin is critical. It looks like according to the polling in wisconsin it seems trump according to polling has taken a little bit of a hit. Now we are talking all three republican candidate this is week. Backing off their pledge to support the eventual nominee. Trump vent so far as to say the door is open to a third party run. Heres what he said specifically. Are you ruling out running as an independent Third Party Candidate . Its a simple question. Its not that simple. I am by far the frontrunner as a republican. I want to run as a republican. I will beat Hillary Clinton. If you dont get the nomination. Well have to see how i was treated. Very simple. How does that translate to voters who thought at first the pledge meant something or we were led to believe it meant something. Its your word and now candidates are backing off it. The point of a pledge is you cant later when situations change decide to break it. Why have a pledge if you can just change your mind . This is indicate ty of a weird campaign. A campaign where the Republican Party risks really coming apart. I think it was weird when the other republican candidates were basically saying donald trump is horrible, evil, unfit to be president. But i will support him if hes the nominee. The interesting thing here aside from the fact you have republicans maybe running Third Party Campaigns is there is a possibility that in certain state it is fact that donald trump now says he may not support the nominee, that possibly could open the door legally to the delegates who were bound to trump to become unbound from him. There are statutes that say you have to pledge to support the republican nominee. Trump has opened the door to that. How do you see this as a prelude or setting the stage for the convention, the Rnc Convention which was already likely to be unpredictable. Now its anyones guess what could unfold. Yes. Anybodys guess as to whether trump could actually get the magic number of a majority on the first ballot. A disaster sun folding. You can call it a melt down but even if the other candidates who lose endorse the candidate who wins the nomination, no one will believe them. Videotape lasts forever. Trump talking about letting japan and South Carolina stop relying on the United States for Nuclear Protection and building their own. Last night at the summit in washington the president himself had some Harsh Criticism of trumps foreign policy. This is what he said. The person who made the statements doesnt know much about foreign policy, Nuclear Policy or the Korean Peninsula or the world generally. It came up on the sidelines. People Pay Attention to american elections. What we do is really important to the rest of the world. How important is it for the president to weigh in on the election in this way on this topic . Well, some place thats correct. He helps donald trump. I dont know whether thats the intention or whether thats the consequence of what he said. When trumps followers see obama criticizing trump it increases their support of trump. I dont know that its helpful if the president doesnt want trump to be nominated. Why would the president want to weigh in knowing any comment he makes is only going to fall in favor of the candidates using obamas record to fuel the campaign. I. E. Donald trump. I dont know if its the case in this incident. Clearly there is the Nuclear Issue is something within the purview of the president. It makes sense for him to comment on it. I would say generally speaking president obama clearly on other occasions has intentionally helped donald trump. Hes weighed in knowing that it would help donald trump become the republican nominee which barack obama and a lot of others including yours truly believe would expedite the deinstruction of the Republican Party. He has ulterior motives when he does this. You know, republicans should consider whether or not they are being played here by president obama who is weighing in on this. Interesting stuff. All right. Thanks so much for playing with us. We have a little sound check going on outside of the nrg arena. This is the fan tip off experience behind me. Now and then well bring you here to houston for the Fan Experience just ahead of the final four. Larry and matt, thank you very much. Appreciate it. Hillary clinton and Bernie Sanders are also campaigning in wisconsin today. The dispute over contributions from the oil and gas industry is heating up with both sides accusing the other of lying. And each demanding apologies. This week Hillary Clinton angrily responded to a greenpeace activist who asked clinton if she will reject fossil fuel money from her campaign. Take a listen. Thank you for tackling climate change. Will you act on your word to reject fossil fuel money in your campaign . I have money from people who work from fossil fuels. I am so sick of the Sanders Campaign lying about this. Im sick of it. Hillary clinton using it as an opportunity to set the record straight. Well, Bernie Sanders reacting this way. According to an analysis done by greenpeace, Hillary Clintons campaign and her super pac have received more than 4. 5 million from the fossil fuel industry. [ booing ] in fact, 57 oil, gas, and coal industry lobbyists have directly contributed to her campaign with 43 of them contributing the maximum allowed for the primary. And these are not just workers in the fossil fuel industry. These are paid registered lobbyists. Secretary clinton, you owe our campaign an apology. We were telling the truth. [ cheers and applause ] all right. Clintons 2016 campaign has taken more than 300,000 dollars from executives and employees who work for oil companies, according to greenpeace. Clintons campaign noted this week that sanders has taken upwards of 50,000 from some of the same individuals. We are not done just following politics. I spoke with former Detroit Pistons star and now announcer grant hill in houston. He won two Ncaa College Basketball titles with Duke University. Can you believe its been 20 years . Hell be a commentator for tonights final four games. Really a lot of excitement here at nrg stadium. But hill has always been versatile on the court and off. Hes always had a fascination with National Politics. I asked him if he had ever thought about running for office. You have been politically involved endorsing candidates of the past, right . President ial candidates like clinton and kerry. Where do you see yourself in the landscape of National Politics . I thought this was just a basketball im sorry. Its full court. Full court. I think i have always said we live in d. C. The main support, the main topic of conversation is always whats happening in washington, the political world. So there was always an interest and a little bit of an appetite for that. You know, a lot changed since i have grown up in the political landscape. The climate has definitely shifted a little bit. So, you know, there are ways to participate in the political process. Without necessarily being a politician. Already sounding like a politician. Well have more of the interview with grant coming up this hour. Also coming up, president obama says we are seeing a tax like this one in attacks like this in brussels because isis is being defeated. Heres more. Elise . Reporter well, fred, another nightmare scenario. Terrorists with Nuclear Material. Experts say its not a hollywood fantasy. Well talk about how World Leaders are trying to keep Nuclear Material out of the hands of terrorists after the break. Is caringing because covering heals faster. For a bandage that moves with you and stays on all day, cover with a bandaid brand flexible fabric adhesive bandage. Whyto learn, right . E . So you can get a good job and youre not working for peanuts. Well what if i told you that peanuts can work for you . While you guys are busy napping, peanuts are delivering 7 grams of protein and 6 essential nutrients right to your mouth. 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In countries from turkey to brussels. This means the sense of urgency we have shown in destroying isil in iraq and syria also has to infuse our efforts to prevent attacks from around the world. President obama addressing one of the worlds worst fears terrorist groups trying to get their hands on nuclear weapons. Lets go to correspondent elise lavitt with more on this. Fred, there are real concerns, particularly that terrorists could not necessarily get ahold of Nuclear Materials like highly enriched uranium or plutonium but materials that are much more vulnerable to theft or what they call civilian Nuclear Radioactive materials that are in hundreds, if not thousands of commercial, industrial plants, hospitals around the world. So there was a special session yesterday particularly about isis and how to keep Nuclear Material out of terrorists hands. World leaders gathered together at this summit. About 102 nations signed this additional amendment to one of the treaties on Nuclear Protection to safeguard Nuclear Materials, protect them from when they are transported. And also to vet personnel at the sites. Thats a concern that some people could get radicalized or could try to infiltrate. So really right now there is a lot of talk about how to protect these civilian. Not just for a city block but could shut down a major city for years. It would be a disaster both economically, politically and for the environment. A real corn on that. A colossal concern incloudy. Thank you. Well check back with you. This just in. The Brussels Airport will partially reopen sunday for the First Time Since being targeted by suicide bombers. The airport companys ceo announced three passenger flights are scheduled for sunday. For now only taxis or private cars will be permitted on airport roadways. The operation capacity will expand over time. Coming up next, a family legacy played out on the hard court. Hear why todays final four game right here in houston at nrg stadium will be especially emotional for one oklahoma player and his legendary grandfather. D and flu season sticks with them. Make sure the germs they bring home dont stick around. Use clorox disinfecting products. Because no one kills germs better than clorox. He is. Rrible at golf. People say im getting better. No ones ever said that. But id like to keep being terrible at golf for as long as i can. Hes just happier when hes playing. But hes terrible. For the strength and energy to keep doing what you love, try new ensure enlive. Only patented ensure enlive has hmb, plus 20 grams of protein to help rebuild muscle. And its clinically proven formula helps you stay you. Oh. Nice shot. New ensure enlive. Always stay you. This is my retirement. Retiring retired tires. And i never get tired of it. Are you entirely prepared to retire . 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The matchup against the allwhite Kentucky Team so emotional and dramatic it inspired the 2006 movie glory road. For kentucky in the final seconds. The rebound for Texas Western. Looking at the clock. Watchin