Escape the deadly grasp of isis, we travel to the front lines, where the battle still rages on. And the excorrectional officer who says he was o. J. s prison bff. Speaking out on why he says the inmate is still living a life of luxury and what he claims o. J. Says recently about the knife found at his former estate. But first, a look at the results of tonights primaries. Nightline will be back in good evening. Thanks for joining us. Another epic night in the fight for the white house. For the democrats Hillary Clinton scores a convincing string of wins. Perhaps cementing her frontrunner status. As for the republicans, despite trumps success tonight that race is just as unpredictable and unprecedented as ever. As we go now to abcs david wright in ohio, where a win for governor kasich could reshape david. Reporter good evening, juju. From john kasich headquarters outside cleveland a jubilant mood here tonight. This is one state where donald trump had a real fight on his hands today. And john kasich, the governor here, won his home state, ensuring that he now moves forward in the republican contest, which now becomes a threeman race. Beware the ides of march. March 15th. The man who would be an american this wasnt quite the sweeping victory he had predicted. He was triumphant in florida. Thank you very much, everybody. Reporter donald trump easily trounced marco rubio in his home state. The margin, huge. Tonight rubio suspended his campaign. While today my campaign is suspended, the fact that ive even come this far is evidence of how special america truly is. Reporter here in ohio john kasich was hoping to avoid the same fate. So good. Reporter tonight we were with him backstage as he was shooting hoops and shooting the moon, that he actually pulled it off. Looks like youve got some game tonight. Ive got game with basketball every night. Reporter this was the biggest day of voting since super tuesday. Going into tonight, ohio and florida were the biggest potential road blocks for trump because kasich and rubio enjoyed home state advantage. Here in ohio it was neck and neck right down to the wire. Ohio and cast a vote for me for president of the united states. Pretty amazing. Reporter kasich is the one republican who has continued to take the high road, refusing even today to take a pot shot at trump. It strikes me youre the one republican who hasnt gone down into the gutter at least. Well, listen do you think thats helped you . Oh, no question. After languishing in the shadows for the whole time and, you know, really being ignored, i think that maybe that quiet positiveness is translating through. Reporter he says tonight the voters have finally noticed. Ohio has an open primary. For the ballot today. Reporter allowing independent voters to choose whether theyll vote in the contest. Today we met democratic voters who gamed it out. Whats your strategy . To vote for someone that i think will knock someone else out that i do not approve of. Reporter mary dunn was cagey about it. Im guessing you voted in the republican race. I did. And im guessing you went with the local, with the home town hero. Probably. Reporter she wasnt alone. Ohio Officials Say 10 of democrats chose to vote republican this year. Democrats come into the republican primaries in a lot of different states. I think in ohio they came in and the exit polls show they actually voted for john kasich in the course of this. And i think that was their effort to sort of say were going to stop trump. Even the democrats are trying to get involved in the stop trump movement. Reporter at slimans restaurant boasting clevelands biggest corned beef sandwiches one of the waitresses told us she was going to vote right after she finished peeling potatoes ahead of the st. Patricks day rush. Vote for kasich. Reporter she told us she wasnt thrilled with the choice. She says her whole family sees it as the lesser of evils. What was your sons joke about picking a president ial candidate this year is like picking what sexually transmitted disease id be most comfortable with. Plenty of supporters in florida where the choice appears to have been more cud and dry. I think ive seen enough of professional politicians, so i voted for donald trump. Reporter hes come out on top of every poll in florida since july. Even after rubio tried to match trump insult for insult. And you know what they say [ cheers ] you cant trust them. Reporter trump then took special relish in mocking him. Hes little. Liddle. Little. Little marco. Reporter the contest in florida ended up looking a little bit like trumps star turn in the wwe. Remember the battle of the billionaires on wrestlemania . How are you doing . Reporter maybe this is what Vladimir Putin has to look forward to, eh . Thank you all very much. Reporter for now kasich and ted cruz appear to be the only some hope of challenging trump. Both of them far behind in the delegate count. Today on hugh hewitts radio show cruz ruled out ever serving as trumps vp. I have absolutely zero interest in doing that. Reporter not that trump had even offered. If trump beats cruz next week in arizona, then you can see a path for trump to get very close to 50 of the delegates. If cruz can beat trump in arizona, then i think we really are looking almost certainly at a contested convention. Reporter tonight trump had a surprisingly strong showing from female voters. Bimbo. Dog. Fat pig. Reporter despite this political ad. You know, it really doesnt matter what they write. As long as youve got a young [ bleep ]. Reporter but that doesnt seem to faze him. As he told Good Morning America this morning. Category. But im leading with women and im very happy about it. Reporter according to abc news exit polling, he has won the womens vote in 13 out of 20 states. Reporter on the democratic side this was a big night for Hillary Clinton. Staving off a challenge from Bernie Sanders in most of the rust belt. Tonight clinton sounded triumphant. We are moving closer to securing the Democratic Party nomination and winning this election in november reporter and she even mentioned him by name for the first time in a primary night speech. We cant lose what made America Great in the first place. And this isnt just about donald trump. All of us have to do our part. Reporter for clinton the road to the democratic nomination now looks fairly smooth. But after that it could get rocky. Today she talked with my colleague cecilia vega. Donald trump has said he hasnt even started to hit you yet. It looks like this could be a general campaign that is very ugly and very personal. No. Not a bit. No. Not a bit. Standing up to bullies my entire life. He can run whatever kind of campaign he wants. I have really thick skin. And its not about me. Its about every american and what were going to do together. Reporter if the past week is anything to go by, we are in for thank you very much, everybody. Thank you. Reporter the primary still ongoing but the general election fight already looming large. Im david wright for nightline in cleveland, ohio. Up next the hollywood power couple fighting for the refugees displaced by the bloody conflict in the middle east. Were on the ground in the wartorn region. But first, time for political punch. Hillary clinton is no stranger to being fodder for latenight comics. Snl poking fun at her seemingly morphing into Bernie Sanders. I am sick and tired of hearing about my own damn in on the joke. The quirky comics of comedy centrals broad city having some fun with their love for clinton. On their episode airing tomorrow. She walked on this floor. She breathed this air. Take it in. Mm. That is power. Reporter the candidate rounding out her millennial appeal, tweeting youre welcome at the real hq any time time broadcity. Next sketch at the oval office. Sorry, were just so excited. What backache . What sore wrist . What headache . Advil makes pain a distant memory. Nothing works faster stronger or longer what pain . Advil. vo whats your dog foods first ingredient . Corn . Wheat . In purina one true instinct grain free, real chicken is always 1. No corn, wheat or soy. Support your active dogs whole body health with purina one. What do doctors from leading Cancer Centers in the country have in common . Many of them now call Cancer Treatment centers of america home. Expert medicine works here. Find out why at cancer center. Com. Cancer Treatment Centers of america. Hi, im here with some advice from the future dont buy makeup that settles into lines, it ages you. Get simply ageless makeup from covergirl and olay. Look beautiful theres simply ageless it helps you look younger in so in the future when youre older you look younger. Simply ageless from olay. Ellen speaking and sofia singing and easy, breezy beautiful covergirl pwhy are you singing the end . Red lobsters lobsterfest is back. So come try the largest variety of lobster dishes of the year, like lobster lovers dream or new dueling lobster tails. Its a party on every plate, and youre invited. They are perhaps the most famous advocates for refugees. George and amal clooney now speaking out to help the millions forced to flee. Searching for a safe hav haven to escape their embattled homeland. And as abcs Alex Marquardt shows us, that fight is far from over. Reporter theyre the red carpet power couple. Actor George Clooney and his wife, renowned human rights lawyer amal. Im of irish descent. And in america 100 years ago we were refugees. Reporter but in a new video released today by the International Rescue committee theyre in front of a very different kind of audience. Syrian Refugee Families now living in germany. Irish were treated terribly in america for a period of time and not accepted. And america learned to accept all of these ideas. Its what our country is, is a country of immigrants. Very good job of remembering who we are. Reporter the clooneys sharing their own stories and shining a light on the stories of some of the millions who have been forced to flee the brutal war in syria. Today, the fifth anniversary of the start of the conflict, the clooneys are not the only celebrities standing with refugees. Families, children. Struggling to stay alive. Reporter the cast of hbos game of thrones featured in another irc video released today. And Angelina Jolie visited refugees living in camps in lebanon. My own familys from lebanon and they also ran away from a war and were lucky enough to be accepted by a european country. Reporter for amal clooney this cause is personal. Bloody 15year civil war. Many years later everybodys doing well. You know, my father has returned to beirut. I hope that as you say you will be able to go back to a safe and free syria. Reporter in many ways these syrian families are lucky. They made it to germany. Germany germany reporter which has taken in the highest number of refugees and migrants in europe since the war in syria ignited a massive humanitarian crisis. Almost 5 million syrians have fled the country. Tens of thousands making the deadly journey by boat to europe. And while their plight has dominated the headlines, millions more have remained trapped inside, unable to escape. Two weeks ago we traveled to syria to try to tell their stories. I reported from syria many times, but this time it felt different. For the First Time Since the war ceasefire in place. On the outskirts of damascus near the front line these kids out playing in an empty lot shooting marbles told us that day something was missing. Said. Nothing . There hasnt been anything today . Few people i spoke with believed the relative quiet can last. But many are praying it does. My heart. All. War. All. All people here. Reporter hello. Elsewhere, these people were from a town besieged by rebel groups, brought to us by proassad forces. But its moments like these when the politics and propaganda fall away, leaving just the horrors of this war. 21yearold jamila was in her house when a rocket fell on it, she told me, killing three relatives and blinding her. She was pregnant at the time and has since given birth to a daughter, kardinia, now three months old. Ive never seen, she said, and to lift the siege on my village. People are dying there. Its clear these people were trotted out for the cameras. But whats also clear is theyve suffered a lot and theyre innocents who are caught between much more powerful sides. Reporter this is not just dangerous but difficult to cover. Which is why to visit a besieged town we had to rely on hezbollah, the Lebanese Militant Group which the u. S. Considers a terrorist organization. Rare access to the group and a town theyve surrounded. You look around here, driving through damascus, people are walking around, driving to work. Its incredible to think that just less than an hour down the road tens of thousands of people are living under siege. Reporter activists in the town of madaya say that dozens have died of starvation and that malnutrition is rampant. The world was shocked by videos like these posted all over social media. We cant verify those numbers or these videos. To get to madaya we followed hezbollah. A bunch of soldiers up there. Reporter one rule. We couldnt film them. We had hoped to meet residents from madaya in a buffer zone without going all the way in, where rebel groups including jihadi factions have control. But the residents were too scared to come out. And hezbollah wouldnt let us go farther in. What we cant show you are about a dozen sir sxwran hezbollah guys who have accompanied us up here. We understand there are about 500 or 600 fighters in the town from different rebel factions. Apparently, until the ceasefire went into place this would have been too dangerous a place to stand. Reporter this is one of 18 areas across syria that are under siege. Half a Million People are trapped by forces from all sides. The biggest number, around 200,000 200,000, by isis. The people of madaya and so many others used as pawns, unable to escape, longing for peace, for quiet, for a safer country. Like the families George Clooney met through the irc. Left because of incredible tragedy. And theyre people who had real lives. And their worlds were destroyed. One of the reasons weve released videos with George Clooney. One of the reasons that the game of thrones cast are so committed to working with us is theyve seen a dehumanization of these people. And i think the most important thing is to hold on to the idea that its not a great mass of people, its a lot of individuals who have their own stories that deserve to be treated with dignity and with respect. Reporter overwhelmed by the historic wave of migrants and refugees, some European Countries are deciding its time to start closing their borders. Leaving thousands camped out in tent cities living in a kind of purgatory while their fates are decided. Few predict that this war that has ravaged syria for five agonizing years will end soon. But the temporary ceasefire has paved the way for peace talks, under way right now in geneva. A step, a glimmer of hope that a for nightline im Alex Marquardt in syria. Our thanks to Alex Marquardt and bruno rover for that report. 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The four dollar menu, where all meals are under four dollars, i for one find it hard to believe its been 20 years since the socalled trial of the century. But so many are still transfixed by the o. J. Simpson saga. Now an excorrectional officer ot black. Im o. J. Confident. Its the onscreen depiction of o. Y. Simpson in American Crime story. But tonight another image of the juice. As an aging inmate. In prison. Hes eating well. Hes exercising well. Reporter retired correctional officer Jeffrey Felix telling his version of the story in a selfpublished book, guarding the juice how o. J. Simpson became my prison bff. He claims he was simpsons closest confidant at this nevada prison. He retired in september. But he says a prison contact described how o. J. Reacted to the recent news of a knife found at his former estate. He jokingly says, if the knife is rusted, i cant be busted. Reporter but simpson slamming felixs claims. The inmate speaking through his lawyer telling abc news that the representation of their relationship is fantasy, wildly instances blatantly false. And that felix never worked in the same unit where simpson was housed. If o. J. Gets paroled, o. J. And i will be playing golf together. I can guarantee you that. The controversy continues. Thanks for watching abc news. Tune in to gma tomorrow. And as always, were online at abcnews. Com and our Nightline Facebook page. Good night, america. The list starts now. The average teen girl spends 11 three reasons why your daughter is spenting smoech o much time online. Super foods on the go. Easiest way to eat your greens. Plus three companies that started out as jokes, but now casting it. Hello, welcome to the show. Lets start by taking a look at the three stories. In the newsroom, heres bradley. Thanks. Even . Spoiler alert, number one. Will you marry me . Yes. A new happy couple, highflying Flight Attendant lauren and no longer a bachelor, ben. And a new bachelorette, jojo, but maybe more entertaining, the playing fiancee my name, how well the pair knows each other. Is that correct . No. Yes