Pulse of the planet. 320 million active users turning to it every day. But the anniversary doesnt come without problems. This morning, the man behind it, jack dorsey, opens up about its past, present and future. Cinderella stories. Upsets ruled day one of the ncaa tournament. For the yale bulldogs. How smart is your bracket looking today, friday, march 18th, 2016 . Announcer from nbc news, this is today with matt lauer and savannah guthrie, live from studio 1a in rockefeller plaza. Good morning, everyone. Welcome to today on a friday morning. Remember the godfather and the line, you broke my heart . My version is, seatenton hall, you broke my heart. My letter grade is an f you had one big bad pick. Go wildcats, next year. Well talk about the tournament in a while. Top story, so much for spring. It officially arrives on sunday but its not going to feel that way, especially on the east coast. Temperature about to plunge and the storm is brewing. This could bury parts of the region in snow. Al, you broke my heart. Just when i thought i was out, i pull you back . Exactly. Whats going on . Heres the deal, were watching this low pressure system kollcoming from the southeast. Severe weather saturday morning there. By the afternoon, its raining in washington, d. C. And cold filters in. A rain snow mix will start for washington, d. C. Saturday evening. Snow showers sunday morning for new york city. We have the american model and the european model. Theyre fairly close early on. As we get to sunday afternoon, sunday morning, you can see they the european model is closer and the american model is further away. By sunday afternoon, snow from new york city all the way up to maine. Heavy snow will continue into new england. Gusty winds and its going to be cold. Heres what were hooklooking at as far as accumulations. New york city, philadelphia on up into the northern new england, 2 to 4, maybe 5 inches of snow. Heaviest snow around eastern massachusetts on up to Eastern Maine. Anywhere from 10 to 12 inches. The american model, almost no snow whatsoever. Northern maine hits the heaviest. Weve also got some in the appalachians. Heres what we think. Looking at all the models, putting them together, were going to say about 2 to 4 inches from washington, d. C. , new york city and west of boston. Boston will see 4 to 6 inches. The heaviest snow will be Eastern Maine and eastern massachusetts. Guys, right now, again, the storm hasnt formed yet. Its the difference between the european model and the american model, continuing together. You have a story on those models and how people come up with that later on. Thatll be in the 8 30 half hour. Thank you. The president ial race is dominated by the stop Trump Movement this morning. The republican front runner now the target of conservative leaders. Theyre trying to block his potential nomination. Hes also being targeted by the hacker group known as anonymous. Hallie jackson is on the trail for us with more on all of it. Good morning. Good morning. This morning, as the stop Trump Movement tries to regroup and figure out a new way to slow down the front runner before the arizona primary, new fallout from the hacker group as it takes aim against trump. Not just his politics, but his personal life. Reporter now claiming credit for hacking donald trump, the group anonymous, calling him a were serious about stopping any foreright by the fascist donald trump. Reporter they claim to have posted his cell phone and Social Security numbers but those have been flowning around online for months. Law enforcement is investigating those who tried to illegally hack the candidates account. Anonymous probably trying to get attention for their socalled war on trump. In washington, a different battle to try and stop him. Less public, too. After a secret huddle of frustrated conservatives, reassessing how to slow trump down. These attack ads havent seemed to do more. Their plan, first call for a unity ticket. If that doesnt work, plot out strategy for a contested convention. Paul ryan acknowledging that scenario looks likely. Were getting our minds around the idea that could become a reality. Reporter now, taking aim at trump for warning what could happen at a convention if he leads in delegates but doesnt get the nomination. Im representing millions of people. Nobody should say such things, in my opinion, because to even address or hint to violence is unacceptable. Reporter while the stop Trump Movement wants unity, theyre not saying who conservatives should unify behind. Ted cruz and marco rubio teaming up, shot down. Im not going to be anybodys vice president. Rubio praising cruz as conservative. Reporter this poster of liar, liar puts ted cruzs head on jim carreys body. If you kill ted cruz on the floor of the senate and the trial was in the senate, nobody can convict you. The manhattan apartment of Donald Trumps son eric. He had a letter sent with white powder inside. Sources say it was nobody harmful. Its yet another sign of how much attention trumps candidacy and his family are getting. Hallie jackson, thank you. Nicolle wallace is an nbc news policeal analyst and former adviser to the mccainpallen nccainpalin campaign. Good morning. We talk about this trump thing as it has a ceo and a logo. Its fractured. While trying to get itself together, hasnt it almost missed a moment . After New Hampshire, the only way to derail trump was to put him in a one on one race. To have everybody coalesce behind one candidate. Whether it was ted cruz or john kasich or marco rubio. They were all still in the race at that point. The central weakness of the stop Trump Movement is it never had a horse. It never had a strategy. It never built consensus around anal kerntive alternative. We just saw lindsey graham. I asked him whats the temperature in hell because he says hell will freeze over before i support ted cruz. Thats where they are as a party, hard choices. What does it say about ted cruz, that he may be the person in the best position to stop trump, but he cant get the party behind him totally . It would have been better if hed not lost all five contests tuesday night. If he had won, if he had a stronger showing this week, you might have seen more people get behind him. The truth about the antiTrump Movement exists behind these things. The temperament of trump. Two, the substance. Hes not a conservative in the minds of the conservative movement. Three, theyre worried about him chief role. Hillary clinton would be wise to go after the first group, people worried about his temperament and maybe the third, people who think he cant be a confident commander in chief. Right now, the stop Trump Movements only hope is he doesnt reach 1,237. Do you think republicans fear donald trump or dislike him more than they dislike hillary clinton. Nobody in the elite establishment would ever admit to being open to hillary clinton. As weve seen time and time again, theyre not the story. Theyre not the deciders, if i can borrow a word from my favorite former president. The voters are the deciders. A lot want to vote republican. Who want to see change. But who are uncomfortable with the idea of trump and cruz at this point. Thank you very much. Good to see you. Something else on the president s plate, a historic trip to cuba. Nbc nightly news anchor lester holt will be live in havana on sunday. He will have complete coverage. Now to more on the fight over the president s pick for it is entering a new phase today. Pete williams is at the court for us this morning. Good morning to you. Good morning. Senators have left town for the easter break, giving Merrick Garland a break. But republicans insist his nomination isnt going anywhere. Reporter its a Supreme Court nominees ordeal, meeting senators one on one, hoping to win them over for a confirmation vote. So far, the welcome matt is out only at the offices of democrats, like harry reed, the minority leader. Republicans insist there wont be any hearing or vote because the next president should choose the nominee to succeed antonin scal scalia. The democrats say normally, the nominee would be up for a vote by memorial day. Hey, guys, do your job. Give him a hearing. Ask him questions. Reporter some republicans say theyre willing to meet with set up yet, a arizonas flake suggested voting on garland while president obama is in office if a democrat is elected president. I would rather have a less liberal nominee, like Merrick Garland, than a nominee that hillary clinton, if she were president , would put forward. Reporter but the Republican Leadership put out the word that an idea is not an option, and most in the party are following along. I dont think we should be moving forward on a nominee in the last year of the president s term. If it was a republican president , id say that. Reporter the white house released this photo of president Obama Meeting with garland. He told supporters to make themselves heard in demanding confirmation hearings. The Supreme Courts remaining eight justices are back in the courtroom next week. White house supporters are launching a website to push for garlands confirmation. We need nine. Org. Thank you. Were hearing more from the alleged american isis fighter still held there, and what hes saying about how he ended up with the terror group may surprise you. Nbcs chief Foreign Correspondent richard angle has the story. He says he joined isis but then had a change of heart. A u. S. Official told us this morning that because of the americans alleged time with the organization organization, he does have intelligence. Reporter hes the first alleged american isis fighter to surrender to kurdish troops in iraq. Im from the united states. I studied criminal justice in college in virginia. Reporter in a taped confessional aired on kurdistan 24 tv, he described how he traveled through turkey, linked up with isis and was transferred the life in mosul, its really, really bad. The people were controlling mosul and dont represent the religion. Reporter these statements were made as he was held in captivity. I didnt really support their ideology ideology. Thats at that point, thats when i decided i needed to escape. Reporter to escape from isis, he said he crossed battle lines in search of kurdish forces, knowing they are close allies to the united states. At the time, i made a decision to go because i wasnt thinking straight. On the way there, i regretted. You know, i wanted to go back to america. Reporter a u. S. Official told nbc news isis is facing a growing problem of desertion, as the group comes under mounting military pressure and now a rare accusation of genocide by the united states. But the charge is mainly a moral condemnation. Because the u. S. Is already fighting isis, its unclear if the rhetoric will change u. S. Policy. A u. S. Official told nbc news that american personnel have not yet met with him in custody, but that the kurds are debriefing him and passing that information along to the americans. Back to you. Richard engel in istanbul, thanks. It got tense on capitol hill over the flint water crisis. Resignations were called for michigans governor and the chief of the epa. People who put dollars over the fundamental safety of the people do not belong in governor snyder. This was a failure of government at all levels. Local, state and federal officials. We all failed the families of flint. Governor rick snyder testified that michigans department of Environmental Quality assured him that the water from the flint water was safe when, in fact, it was contaminated with Dangerous Levels of lead. Both the governor and epa administer expressed remorse. Mccarthy said because it was under a state emergency manager, it prevented federal officials to be able to, quote, jump to the rescue. There were scary moments for passengers thursday on a flight from North Carolina to new york city. Take a listen. Just got hit by lightning. Roger, everything okay . Yeah, dont send us through there again. Its pretty bad. The American Airlines flight was preparing to land at laguardia in new york when it flew into turbulent skies and the plane was diverted to jfk airport, a few miles away. Officials say it landed safely. 55 passengers on board. The faa will investigate the incident. A hearing is set today to revoke bail on labrie, the student convicted of sexually assaulting a classmate. Morgan radford has been following these developments. Another unexpected twist. Owen labrie admitting his missed his curfew but it was for a good reason. A judge must determine what happened and whats the punishment. Reporter this morning, owen labries future on the line again. A judge will decide whether the prep schooler who is accused of Sexual Assault against a 15yearold classmate should be put behind bars for violating conditions of his bail. Jumped into him on a subway around 1 00 p. M. And tweeted their conversation. Had to take a bus to dartmouth and be home by 5 00 p. M. Reporter a source said labrie thought the conversation was off the record. Prosecutors saw the exchange and filed a motion in court, saying he violated the conditions of his bail. Hes supposed to be at his mothers vermont home between 5 00 p. M. And 8 00 a. M. He traveled from New Hampshire to boston at least eight times since october. The question facing the court today isnt where he went but when he made it home. Most judges would look at that and say, tough. You knew what the rules are. Youve been convicted of a crime. Follow the ruling for your bail. Reporter labries lawyers say, yes, he traveled to boston and admits to violating his morning curfew on the occasions but only to see his lawyers and take classes he wanted to be private, since hes been insulted and threatened in public. Night went. Reporter the intense interest in labrie began last year. The country captivated by the elite prep School Setting where his accuser said the unthinkable happened. I was raped. Reporter her voice disgeist disguised, face hidden. You were excited to see her because you wanted to have sex with her. No. Reporter labrie said, i walked out of the courthouse with my chin up. Today, labrie back in the same courtroom where it all began. We reached out to the prosecutor and labries accuser but havent received a response. Labrie is expected to return to court today. If the judge decides he violated his tur cuecurfew, he could be carried out in handcuffs. Thank you. Lets get another check of the weather from al. Were also going to be watching an area of heavy showers and thunderstorms through the gulf coast. Risk of strong storms from texas to louisiana. Sunny and chilly, weather making its way from the plains on into the great lakes. Well get to your thersomethto be for exploring the world around you. For seeking out the new; r tryihe u; r ing the undone. Whshld snainbe anydifferent . Discover ne oreamy cand taour curios the laugng cow thats your latest weather. Matt . Al, thanks very much. Coming up, a clubhouse divided. What adam la roh shas teammates are saying after his decision to retire after dialing back his sons time with the team. Live interview with twitter Ceo Jack Dorsey ahead of the 10th anniversary of twitter. Are changes in the works . 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He identn eek t appe be a on hereen o pectme dela in tharhere is wes incide thethe in sh cg owdownere. It iit nes us nobl take it easy 7 30 now on a friday morning, march 18th, 2016. We are on hatch w. Ireg e h today. This is going nuts online. People are watching eagles. Org for that picture. That eagle is about to hatch her eggs. If it happens during this broadcast, we will have the breaking news. Get it . Yes. Every time she gets up, everybody says, here it goes lets look at other headlines this morning. Noreaster that could bring weather to millions for spring. Impacting major cities from d. C. To boston. Al will have more coming up. For the First Time Since his capture, were hearing from the alleged american isis fighter who surrendered on the battlefield. In a video aired on kurdish television, he said he made a bad decision when he followed a girl to iraq and realized joining the terror group was a mistake. I didnt really support their ideology ideology, and thats at that point, thats when i decided i needed to escape. The 26yearold is still in captivity. He says he wants to come back to the united states. If you like upsets, you probably enjoyed thursdays start to the ncaa tournament.