Why wwe star Daniel Bryans wife agreed to keep quiet about her husbands concussions, the ones that eventually forced him to call it quits. Everybody and the grammys rocking all night long. Lionel richie saying hello to musics biggest night. Taylor swift taking home a huge award and taking on kanye west. You dont let those people sidetrack you. We could be heroes just for one day and lady gaga with an outofthisworld tribute to david bowie. This is Ground Control to major tom this morning, the secrets behind that electrifying night only on gma. And good morning, america. Boy, what a night at the grammys. Lets take a little look at the Lionel Richie medley, joined on stage by john legend, demi lovato, luke bryan. Demi lovato was so good singing hello. Lady gaga with that david bowie medley. Of course, everybody wanted to hear adele perform. Easily one of the most anticipated moments of the night. However beset by technical difficulties. What adeles saying about those this morning. With a smile on her face. Of course. First, to those major winter storm spawning tornadoes that tore through the south. 15 states on alert this morning, from North Carolina all the way up to maine. And that storm also dropping a dangerous mix of snow, ice, and rain across 1200 miles. Its blamed now for thousands of accidents. Abcs mary bruce has the very latest. Reporter overnight, slick, sleety roads leading to wreck after wreck. Theres a lot of icy spots. Reporter early this morning, this massive pileup in pennsylvania, just north of scranton on i81, semitrucks plowing into each other after hitting black ice, crushing cars in their path. Rescue crews are on the scene. There were reports of multiple injuries. The icecovered interstate remains closed. Many cars unable to get traction. Over 2,000 wrecks in 24 hours across 17 states. Virginia alone seeing more than 500. It wasnt just miserable road conditions. Tornadoes touching down in the south. On the florida alabama border, a tornado damaging homes and dropping trees on cars. In louisiana, a reported tornado ripping the roof off this carwash and tossing it into this pizza hut. Cell phone video capturing the panicked patrons moments after. Youre all right, mom. Youre all right. Reporter miraculously, there were only minor injuries. This morning, in mississippi, theyre cleaning up after a tornado may have touched down there. Three homes flattened and completely destroyed. Here at the charlotte airport, it is a wet, slick mess. Already 25 Flights Canceled here. Nearly 400 across the country and growing. Amy . All right, mary. Thanks for the very latest on that. And that snow and ice is not sticking around long. Rob, the temperatures have been jumping up and down the past few days. A 50degree swing for millions. Yeah, amy, in some cases, a 60degree swing. Were in the upper 40s here in manhattan. Where just a few days ago, record temperatures well below zero. Look at this swing. When you talk about sunday, minus 1 in new york. Today, well into the 50s. But before that it will be windy, too, by the way. Before that happens, we still have pockets of really cold air. So, its a slick commute just outside of d. C. , they just bumped up. And were going to see some heavy rain in baltimore, washington, d. C. , back through west virginia. Flood watches are posted for this rain. Marching up the eastern seaboard. All snow from buffalo back through western pennsylvania and some Severe Weather across parts of south florida. Theres a massive, massive storm. As you mentioned, all sorts of wild swings. A difficult commute this morning and this afternoon. Back to you. You could feel the difference when you came to work this morning. A big difference. We move on to the race for the white house. The focus on South Carolina, the gop primary just four days away, jeb bush brings in his big brother to take on donald trump. As Trump Doubles down on his attacks against bush, ted cruz, the entire republican establishment. Mr. Trump will join us live after this report from abcs tom llamas in South Carolina. Reporter george, good morning to you. That crowd last night loved seeing president bush. Voters i spoke to afterwards said it added a layer of legitimacy to jeb bushs campaign. But donald trump saying its too late to save jeb and that jebs campaign is going nowhere. The Bush Campaign calling in the big gun president george w. Bush, hoping South Carolina voters deliver for jeb like they did for w. Ive been misunderestimated most of my life. Reporter the former president turning on the charm. Ive written two books, which has surprised a lot of people, particularly up east, who didnt think i could read, much less write. Reporter then, not calling him by name, but definitely turning up the heat on donald trump. In my experience, the strongest person usually is not the loudest one in the room. Reporter and jeb also showing hes ready to fight. Ditching his glasses and saying trumps recent criticisms of 9 11 are out of line for a republican. I thought it was a little strange that a frontrunning candidate would attack the president of the united states. Reporter but trump defiant. Ive heard for years, he kept the country safe after 9 11. What does that mean after . What about during 9 11 . I was there. The worst attack ever in this country, it was during his presidency. Reporter trump, who polls have leading in South Carolina, says jeb bush started this fight by attacking him with negative ads. His brother came today. Theyre trying to make him competitive. I dont think it will happen. Reporter while trump takes on the bushes, hes also calling senator ted cruz a liar. I have never seen anybody that lied as much as ted cruz. And he goes around saying hes a christian . Reporter trump threatening to take cruz to court over the fact that he was born in canada if he doesnt stop airing what trump calls false ads and apologize. Cruz could be trumps toughest competition in the palmetto state. He says trump is coming apart and hes painting him as a conservative impostor. If you live 50 years of your life and you have never said or done or written anything to prove youre conservative, you aint. Reporter and this morning, senator ted cruz set to make a major announcement when it comes to national security. And back to trump now. And his criticisms of 9 11. Last night, the bushes were not the only ones to square off with donald trump. Vice president dick cheney also said, when listening to donald trump, it sounds like a liberal democrat when he attacks the Bush Administration over 9 11. Mr. Trump joins us now. A republican candidate in a pitch battle with the partys previous president and vice president. Well, george, this wasnt started by me. This was started by jeb bush. He was telling me all sorts of good things in a debate and various other places. Finally, i said, hey, look. He was saying how safe things were. Well, i said, excuse me, the World Trade Center came down during your brothers administration. You cant bring out the brother. I have never met the brother. You cant bring out the brother, say what a wonderful job he did. Its like a baseball game. They got 20 runs in the first inning, but after that, the team played well. The World Trade Center came down and thousands of people, many of whom i knew, many people that i knew died in the World Trade Center. That happened during the bush presidency, which is, you know, you have to bring that out also. Are you standing by your contention that president bush lied about weapons of mass destruction . A Bipartisan Commission says theres no evidence to back that up. I dont know if he lied or not. I just know that there were no weapons of mass destruction. I know that his cia and other agencies knew something bad was going to happen. They did nothing about it. They did not get along, if you look at the records. They got along horribly, the heads of the cia and the heads of the various other agencies werent speaking. There were a lot of problems there. And Osama Bin Laden, who i wrote about two years before the World Trade Center came down. I wrote about Osama Bin Laden in my book. Hes a bad dude. He should have been taken out. And one other thing, george, had we had my immigration policies in effect, those people wouldnt have even been in the country for the most part. Lets move to ted cruz. You said you want an apology from him, you want him to take his ads down. Hes not doing that. Hes actually doubling down. Are you going to court today to challenge his candidacy . Well, let me tell you, i have dealt with many people over my lifetime and ive been very successful. Ive dealt with people a lot tougher than him. I have never dealt with anybody that lied like him. Even rubio, marco rubio, which is hard for a politician to do. He called him a liar. I said, wow, thats amazing, i have never heard that from a politician. Where they actually call each other liars. Ted cruz is a liar. He outright lies. My whole thing is obamacare, were going to repeal it and replace it. He says, i love obamacare. Im going to keep it. On the Second Amendment, theres nobody stronger on the Second Amendment than i am. He said, donald trump wants to get rid of the Second Amendment. Hell say whatever he wants to say. I actually think hes a very unstable person. I really believe that. I think hes a very unstable person. But i have never had somebody take something you believe in and say the exact opposite. By the way, on sunday, or saturday evening, right after the vote, hell apologize. But are you going to follow through on your pledge to file a suit against his candidacy . You said you hired a lawyer it was what he did to ben carson is a disgrace. He wrote a fraudulent voter paper a voter violation paper. But he apologized immediately to ben carson after the votes were cast. Frankly, that should be taken away from him. That election from iowa should be taken away from him. He was born in canada. Some saying he doesnt have the right to run for president he cant be president , because of the fact he was born in canada, lived there for years. Under that theory, Winston Churchill could be take a look. He was born in canada. When you talk about a naturalborn citizen, according to many great lawyers, ive been looking at this very strongly. Ill ask you again, are you going to file suit . Im thinking about it very seriously, george. I dont know yet. Were thinking about it. Mr. Trump, thanks for joining us this morning. Thank you very much. Always interesting, george. Also interesting, the democratic race. The nevada caucuses are also just four days away. And the battle between Hillary Clinton and Bernie Sanders is getting fierce, as hillary tries to avoid another upset. Abcs cecilia vega is here now with the very latest on that battle. Good morning, cecilia. Reporter thats right, amy. Heres the reality for Hillary Clinton. Bernie sanders has the momentum on his side after the doubledigit New Hampshire win. And this morning, her team is growing nervous about what could come. Hillary clinton in nevada making her case. Im hoping to get your support. Reporter one handshake. I need your help in your caucus on saturday. Reporter after the next. Voters also have a choice between where i stand and where my opponent stands. Reporter where she stands this morning, hoping to avoid an embarrassing nevada upset. Overnight, Bernie Sanders fired up. Trading in nevada for michigan and a massive rally with nearly 10,000 supporters. Leadership is about standing up for whats right even when it is not popular. Reporter clinton stayed behind, skipping a Campaign Stop in florida, sending her husband instead. You think theyre nervous in nevada right now . Should they be . Its a caucus. Anytime you have a caucus, its more unpredictable. So, its better for her to stay there. Reporter bill clinton facing heat of his own, interrupted by this trump supporter. The former president firing back. I took his money for my foundation where i used it to better than hes using it now, ill guarantee you. Reporter from the loud to the strange. Hillary clinton focused on republicans, too. During a story about a political ad featuring a dog, she began barking. Yes, barking. We need to get that dog and follow him around and every time they say these things, like, oh, you know, the Great Recession was caused by too much regulation. [ barking like a dog ] you know. Reporter yeah, clinton aides telling me theyre bracing for a very tight race in nevada. A victory all depends on turnout, but today is about wooing a constituency shes been trying hard to win. Clinton meets with members of naacp and al sharpton. What are we going to see next . Reporter i dont know. Dont ask me about the barking. Thats all i know. Thank you, cecilia. Thank you. Well get the latest now on the supreme court. Funeral plans for Justice Antonin Scalia have not yet been announced. Both parties brace for an epic electionyear showdown over his successor on the court. Jon karl is tracking that from the white house. Senate republicans now a pretty united front against any nominee from president obama. Reporter they sure are. They have been unified so far saying it should be the next president who choose the replacement. Not this one. Meantime, the white house says that the president is deeply engaged in choosing a nominee and that senior aides are already talking to democrats on the senate, getting input from them. Okay, jon karl, thank you very much. All right, now, to musics biggest night, and what a night it was at the grammys. Full of unbelievable performances, surprises. Incredible tributes. Chris connelly was there for all of it. Reporter the 58th annual grammys, a tale of sound. I cant feel my face when im with you reporter and fury. And signified. Alexander hamilton reporter take taylor swift. Accepting her album of the year award with a call to female empowerment. I want to say to all the young women out there, there are going to be people along the way who will try to undercut your success. Or take credit for your accomplishments or your fame. Reporter along the way, throwing shade at 100 miles an hour in the direction of kanye west, who declared in a new song i made that [ bleep ] famous just know it was you and the people who love you who put you there. Hello reporter no, not that hello. Demi lovato. Part of an allstar Lionel Richie medley. Sing my song, everybody all night long reporter on the red carpet, eager anticipation for rapper Kendrick Lamar. I hope he wins everything. Reporter well, he won five of them, including best rap album. This boy hip hop. Reporter he won the hearts of his peers with a galvanizing performance. As we proceed to give you what you need reporter steeped in the stark imagery and emotion of the black lives matter movement. This is Ground Control to major tom reporter also delivering live, lady gaga, with a tribute to david bowie that ran the riotous gamut of his evertransformative career. Fame, fame, fame, fame reporter and of the night he won his first grammy. You should go and love yourself reporter Justin Bieber strumming and singing the songs that have put his own career back on track. Adele seemed set to soar. With this performance. Remember us reporter but ended her night responding to widespread social media speculation that technical issues had snarled her song, tweeting the piano mikes fell on to the piano strings. While much of the grammy evening hailed heroes of the past. Take it easy reporter the eagles, reuniting just weeks after the passing of frontman glenn frey. Save me reporter Jackson Brown helping out his friends of the eagles with that tribute. Well, here at staples center, nobody is still here. Its the music business. I figure someone is out there still celebrating. Guys . You got that right. Chris, thank you so much. Amazing moment, that eagles moment was tremendous. We have so much more on musics big night. The highs, the lows. And some exclusive behindthescenes details that chris is still gathering. Coming up. Want to go back to rob on this windstorm. Yeah, so many facets to this storm, and the last one is the wind. High Wind Warnings for eastern parts of massachusetts. It includes new york city. Winds over 40 miles an hour. In some cases, it will be damaging, especially in eastern mass. 62 potentially in provincetown. Good morning, i am meteorologist mike nicco with the forecast. Today, high clouds. Sunshine. Record warmth. Unsettled weather for wednesday through friday. A couple of chances of rain. February will be more dry than average. No big storms after tomorrow. Record highs are possible. Look for the asterisk in the midtoupper 70s and 80 in san jose. Tonight is warm. Midtoupper 50s with high clouds rolling in. A few showers tomorrow. The best chance of widespread everybody warming up on the east coast. But nothing compared to socal. Temps near 90 again today. Coming up here on gma, former new york governor Eliot Spitzer is speaking out over the police investigation. Into an incident with a young woman at a hotel. And the wwe superstar couple now speaking out about the major health secret they kept for so long. And it was hard on me. But i didnt. I didnt say anything. The truth behind his decision to leave the ring for good, when we come back. Stay with us on good morning america. Increase speed, full throttle over intercom ann, are you coming in . Negative stay on target. What are you guys doing . Artoo, thrusters theyre closing in ill guard the base. For every family that lives star wars, this is the place where star wars lives. Where a galaxy far, far away. Is closer th