As he battles for womens votes and Hillary Clinton prepares for Bernie Sanders. Nominee. Our candid interview with the democratic frontrunner right here on Good Morning America. Soccer star Abby Wambachs heartfelt apology after being arrested for dui. The brewing feud this morning. 9 to 5 katy perry goes country and love is in air at two huge awards show. Blake shelton bringing down the house with a song believed to be about gwen stefani and taylor swift stealing the show, what shes saying about her boyfriend for the first time. And good morning, america. Good to be back from spring break. Happy monday to everyone. It sure was. Taylor swift winning big, she took home four awards and maybe the bigger headline, she opened up about her boyfriend Calvin Harris. Apparently love was in the air at the academy of Country Music awards. Blake shelton performing a song believed to be about his love, gwen stefani and she talked about turning pain into pleasure later this morning. First, that powerful spring storm hitting from the midwest to the northeast, strong winds have damaged homes and look at what happened in indiana. A chipotle sign blown over, the driver in the car was able to get out safely and rob marciano is in boston tracking it all. Reporter good morning, george. What a wild april weekend of snow and wind and the snow already falling here in boston, round two now under way. Overnight, commuter chaos in this car rolling over in rochester and whiteout conditions leaving to a massive pileup on i88. Injuring more than 30 people. In boston a fallen tree crashing on this car, killing both people inside. The ground is so saturated with all the rain, the trees are uprooted. Reporter n indiana, wind gusts knocking this chipotle sign on the ground. Winds tearing down power lines throughout the northeast. This one igniting in foxborough, massachusetts. Responsible for collapsing this building in baltimore. And in pittsburgh, grounds crew clearing ice and slush off the baseball field for the pirates opening day game against the cardinals. The rest of the major league will open today including the Boston Red Sox visiting snow issue. Check out the radar. Well see several inches fall here and a long duration, allday event for the most part. 2 to 4 inches. Widespread. Maybe 4 to 6 pockets of that. What sticks tonight is going to stick around through tomorrow. Look at these wind chills, even colder than what we saw over the weekend. 12 in pittsburgh and 11 degrees in new york city. 13 degrees where the Cherry Blossoms are in full bloom in washington, d. C. Amy. All right, rob, thanks so much. We appreciate it. Now to the investigation into that fatal amtrak derailment in philadelphia. A train colliding with a backhoe on the track. From these dramatic photos you can see inside that mangled car. David kerley has the latest. Reporter good morning, amy. Those tents behind me thats where the investigators are working this morning. Still the question how does a train and a heavy piece of equipment end up on the same rail lines. All, ms units working the train accident. Reporter left two dead and amtraks engines off the rails. The whole train was shaking like it was going to fall apart. Reporter parts of the cars did. Debris from the collision ripping through the front cars of train 89. All you could see was dirt and debris flying past the train and there was fire flashes. Reporter passengers who could scrambled to safety. But more than 30 were injured. A doctor in the first car, sprung into action. Take a deep breath, you mutter a little prayer and you say, hope to god i can handle whatever it is that comes my way and you dig right in. Train 89 just hit a backhoe. Morning, how could this happen . A backhoe like this used for track maintenance on the same tracks as the southbound train. The amtrak operator of that machinery and his supervisor were the two who were killed. Well be looking at the track structure. Reporter more than 30 passengers and the engineer were taken to the hospital. Passengers were able to walk away from it. George, one of the questions is, you remember after the derailment last may, north of philadelphia, they put in positive train control, why didnt stop this accident from happening yesterday . Just one of many questions david, thanks very much. The largest leak of secret documents in history, pub publication of whats being called the panama papers, a worldwide corruption scandal. Correspondent terry moran has the latest from london. Good morning, terry. Reporter this scandal is exploding on a global scale right now, burning up social media. Trending on twitter. Edward snowden tweeting, this is the biggest leak in the history of data journalism. It all centers on a secretive law firm in panama. Helping the worlds richest and powerful to launder their money and dodge sanctions. Russian president Vladimir Putin is not named specifically in these documents but they reveal a telltale trail, set up by his closest inner circle and worth 2 billion. Other World Leaders involved. King of saudi arabia. Even the president of ukraine. This scandal is just exploding as i say right now. And russia has already responded. A putinophobia and an attack on the country. The consequences could really ripple. Now to the race for the white house. Voters in wisconsin getting ready to head to the polls tomorrow where republican frontrunner donald trump is facing a strong challenge from ted cruz. April shaping up to be a huge month. Another huge month, we should say n the race. With at least 255 delegates at stake for the republicans. Abcs tom llamas is here tracking it all. Reporter senator ted cruz feeling confident about wisconsin. He knows if he wins there, this race could be decided on the convention floor. This, as donald trump is calling for Governor John Kasich to get out of the race because hes taking away potential votes. This morning, donald trump trying to bounce back after a rough stretch. From drama with his campaign. To fumbling on abortion. And a war of words over with wives. Was this my best week . I could have done without the retweet, et cetera. Reporter in a rare move, trump admitting hes made mistakes and regrets initially suggesting that women should be punished for having an illegal abortion. As a hypothetical question, id rather answer it in a different way. Reporter today, wife melania returns to the campaign trail. Hell be the best president. Reporter this as senator ted cruz says trumps misstatements on issues like abortion happen because hes not a real republican. Donald trumps answers are the answers of someone whos a liberal, trying to say what he thinks conservatives want to hear. Reporter cruz not the only one taking shots at trump. Donald trump doesnt not personally condone violence. Right. Lets see whats randomly happening at his rally right now. Reporter for the democrats a new fight is brewing. Hillary clinton said shes ready to debate Bernie Sanders on Good Morning America before the New York Primary in two weeks. Sanders, not ready to commit. People of new york deserve to hear us discussing the important issues facing that state and facing the country. I suspect it will work out. This morning, lot of people in the political world are talking about new story in new york magazines, about donald trump and in this story, two interesting nuggets, one, ivanka trump wanted donald trump to apologize after his comments about mexican immigrants when he announced and that donald trump has been wearing a bullet proof vest out on the campaign trail. Tom, thanks very much. My interview now with Hillary Clinton, shes under pressure from Bernie Sanders before tomorrows big vote in wisconsin. Thank you for joining us. Bernie sanders is on a winning streak, won five out of the last six. Wisconsin, hes ahead right now. Why cant you put him away . Im happy where im at. Two important indicators the number of pledged delegates im significantly ahead. After all, thats what determines the outcome. The popular vote, i have close to 9 million votes thats a million more than donald trump and 2. 5 million than senator sanders 37 i feel like were on a good path. Its an exciting time in american politics, because i think people are really tuning in and trying to figure out what were going to do and i think what i have said is we need to elect somebody based on three tests. Can you do things that are going to improve peoples lives . Can you be the commander in chief and keep us safe at home and around the world . Can you unify us . Given some of the rhetoric in this campaign. That has been your message so far. But hes on this winning streak. Dont you have to win your home state here in new york in two weeks sf. Im going to do everything i can to win in as many places as possible. But i have been through this before. We were laughing before we started, i can remember how hard it was when my husband ran in 1992. I ran a tough campaign against thensenator obama. So, we have a system and im very confident that illll be the nominee. Im not taking anything for granted. Even if you dont win new york . Im confident that ill get the nominee. Im proud of the work that i did with so many thousands of new yorkers. So, of course, im going to work you know, in milwaukee on saturday night, you talked, youre a loyal, true democrat, clearly a shot at Bernie Sanders. When i asked him about that, the fact that hes an independent is a strength in the campaign. In a lot of the polls right now, he does better than you in the general election. Well there are a lot of polls that say just the opposite. But polls this far out dont mean anything. Whats important is not what somebodys theory is but how many votes have you gotten. Thats what we determine elections based on. I also believe its important that we elect more democrats. I would love to see the senate go back to being democratic instead of having republicans who wont do their constitutional obligation. Well, theres no indication that theres any interest there. Im committed to electing democrats. Im helping to Fund Democratic campaigns. Attend of the day a president robust agenda with big goals for our country. I think i got a track record of proven results. I think it will be better for the country if we move away from the obstructionism, the extreme partisan ship that were seeing today. Follow the constitution, which right now doesnt seem to be the case. Youre hitting donald trump pretty hard. Your first ad here against donald trump. Are you worried at all this goes to a contested convention on the republican side and they pick somebody else, a fresh face, who might be a more difficult challenge. I had that experience, too. I started running out in the new york senate, rudy giuliani, he dropped out and then i had a fresher face to run against. I have no control over what the republicans do. Even though im working hard to win the nomination and compete its important not to let the kind of comments were hearing not just from donald trump but the other republican contenders go unanswered because the world hearse those. Lot of people in our country hear insulting comments about immigrants being called rapists and criminals. Profiling muslim communities. And they wonder what is happening in our country. While im focused on the primary and getting the number of delegates necessary to be the nominee im going to keep standing up to donald trump, ted cruz or anybody else who are saying things that are so contrary to who we are. That gets me to the last test, do you want to unify the country . You and Bernie Sanders are going to debate in new york. Im hoping to, we offered dates which they refused. You offered Good Morning America offered a debate during Good Morning America on friday the 15th. I think its great opportunity to reach an audience that may not be able to because of other obligations to tune in to debates. I understand theres a debate in the works for the night of the 14th. Ill be there. I want to debate and im confident that we can work out a time to do that. Thank you. Excited if we get the debate. Lets move on to march madness, the final matchup turning into a sibling showdown. Two friends, turned brothers, facing off tonight in the big championship game. Jesse palmer is here with all of the details. Good morning, jesse. Thats right, nate britt and his adopted brother kris jenkins. Nate plays for North Carolina. Kris is a forward for villanova. Theyre extremely close, right now, allegedly, theyre giving until they meet on the court. This is it. Villanova versus unc. The wildcats versus the tar heels and brother versus brother . Thats right, when villanova faces North Carolina tonight, two brothers will be going toe to toe against each other. Fighting for the National Championship as well as a lifetime of bragging rights. I expect this game to be super competitive. Reporter nate britt is a junior at unc. Kris jenkins, a junior at nova. They played aau basketball together when they were 11. Thats when jenkins mother decided her son would have an opportunity for a more stable life with the britt family. For them to take a total stranger in the house was a blessing. Reporter the britts adopted them. Against each other. Think Peyton Manning and eli manning. Or venus and serena williams. How will it feel for them . Theres no one i want to beat more than my brother. Reporter it looks like brotherly love will have to wait. Of course while this may cause a bit of family feud, this is going to be a winwin situation for the britt family, either way, theyre going to be celebrating a championship. Lets not forget the Womens Basketball championship is also going to be a good one. Uconn facing off syracuse tuesday night. If uconn wins, it will be an unprecedented fourth straight championship. A dynasty. Amazing. All right, lets go back up to rob in boston, lot more on that cold. Yes, snowing here in boston. Likely snowing in storrs, awaiting another cham and coming up women soccer legend abby wambach apologizes after being arrested. But its what the mens socker the team is saying that everyone up in arms. Ivana trumps behind the scenes role. In the campaign. Coming up. About a biologic. This is humira. 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