But the anniversary doesnt come without problems. This morning, the man behind it, jack dorsey, opens up about his past, its present and its future. And cinderella stories. Major upsets ruled day one of the ncaa tournament. For the bulldogs so how smart is your bracking 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 morn. Remember the godfather and the classic line, fraudo, you break my heart. My version is, seton hall, you broke my heart. How smart is my bracket . I think it was fminus. You had one bad pick. Go wildcats. Well talk about the ncaa tournament. Our top story this morning, so much for spring. Its not going to feel that way, especially on the east coast. Temperature about to plunge and a storm is brewing. And this could bury parts of the region in snow. Oh, you broke my heart. Just when i thought i was out, i pull you back in. Exactly, whats going on . Were watching this low pressure system. Its going to be coming up out of the southeast. Some Severe Weather saturday morning down there by saturday afternoon. By saturday afternoon, its raining in washington, d. C. Cold air starts to filter in as this low pressure system develops. Rain snow mix will start from washington, d. C. Saturday evening. Snow showers by sunday morning for new york city. Now, weve got the american model and the european model. Theyre fairly close early on. As we get into sunday afternoon, sunday morning, you can see they start to diverge a little bit. The european model a little bit closer, the american model further away , the storm will intensify either way. Snow stretching from new york city to maine. Heavy snow will continue into new england. Gusty winds and its going to be cold. So heres what were look at as far as accumulations. Current forecast, new york city, philadelphia, on up into Northern New England about 2 to 4, maybe 5 inches of snow. Heaviest snow around eastern massachusetts on up into Eastern Maine, anywhere from 10 to 12 inches. The american model, look at this, almost no snow whatsoever. Northern maine hits the heaviest. Weve also got some in the appalachians. Heres what we think, look at all the models, putting them together, about 2 to 4 inches from washington, d. C. , new york city and west of boston. Boston will see about 4 to 6 inches. The heaviest snow will be Eastern Maine and eastern massachusetts. The storm hasnt formed yet. Were going to continue to watch it. Its the difference between the models. Theyre coming together. Youve got a story on those two models and how people come up with them a little bit later on. Thats right. Al, thank you. Meantime, the president ial race being dominated by the socalled stop Trump Movement this morning. The republican frontrunner now the target of conservative leaders. Theyre trying to block his potential nomination. Hes also being targeted by the hacker group known as anonymous. Nbc is on the trail for us with more on all of it. Good morning. Hey there, savannah, good morning. Were learning talks swirling at the highest levels about how to handle a possible trump nomination. Paul ryan fresh off a dinner with influential donors. All of this as the hacker group takes aim over not just donald trump politics but his personal life. Now, claiming credit for being thatting donald trump, the Group Anonymous calling him a would be dictator. We are very serious about stopping any proposed fourth reich by donald trump. Trumps campaign telling nbc Law Enforcement is investigating those who tried to illegally hack anonymous accounts. Trying to get attention for their socalled war on trump. In washington, a very different battle to try and stop him. Less public, too, after a secret huddle of frustrated conservatives, reassessing how to slow trump down since attack ads like this new one havent seemed to do much. Their plan, first, call for a unity ticket. And if that doesnt work, plot out strategy for a contested convention. House Speaker Paul Ryan acknowledging that scenario looks more likely. Were getting our minds around this idea this 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. I think youd have riots, you know, im representing a tremendous, many, many 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. Talk of ted cruz and marco rubio teaming up shot down. No, im not going to be anybodys Vice President. Reporter rubio now praising cruz as conservative, as the texas senator faces morse attacks from donald trump. This new photo shopped poster of the movie liar liar. But cruz may get the last laugh, backed by an unlikely former foe, senator Lindsey Graham raising money for cruz less than a month after making this joke. If you killed ted cruz on the floor of the senate and the trial was in the senate, nobody could convict you. Reporter and new this morning, a scare involving Donald Trumps son eric. Suspicious mail sent to his apartment. Sources say it was nothing harmful. And not uncommon for highprofile personalities to receive this kind of thing, but it does show how much attention trumps family is getting, guys. All right, hallie jackson, thank you. Nicole wallace, good morning. Good morning. We keep talking about this stop trump entity as if its a rething, as if it has a ceo and headquarters. The fact of the matter is, its still very fractured. While its trying to get itself together, hasnt it almost missed its moment . Here was the moment. Everyone agreed that after New Hampshire, the only way to derail trump was to put him in a oneonone race, to have everybody but him coalesce behind one candidate. They were all in the race at that point. That never happened. The essential weakness of the stop Trump Movement is never had a horse, it never had a strategy and never built a consensus around an alternative. We saw Lindsey Graham who didnt endorse ted cruz but hell have a fundraiser for him. I asked the question, whats the temperature in hell, because he himself said hell will freeze over before i support ted cruz but thats where they are in this party, these hard choices. What does it say about ted cruz that actually he may be the person best positioned to stop trump but he cant get the party behind him totally . It would have said something much better about ted cruz if he 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. Heres the truth about the antiTrump Movement. It objects three things about trump. One, his temperament. Makes people very nervous. Two, the substance, hes not a conservative in the minds of the conservative movement. And, three, theyre worried about him filling that vital commander in chief role. Hillary clinton, if she were smart, would be wise to go after the first group, people worried about his temperament, and maybe the third group, people who dont think he is competent to be commander in chief. The stop trumps only hope is if he doesnt reach 1,237. Youre saying Hillary Clinton should reach out to the stop Trump Movement. Do you think republicans fear donald trump or dislike him more than they dislike Hillary Clinton . Nobody in the elite establishment would admit to being open to Hillary Clinton but as weve seen time and time again, theres not the deciders. The voters are the deciders. And there are a lot them who want to vote republican. Who want to see change. But who are simply uncomfortable with the idea of both trump and cruz at this point. All right, nicolle, thank you very much, good to see you. Something else on the president s plate, an historic trip to cuba. Nbc nightly news anchor lester holt will be live in havana and he will have complete coverage. Now the fight for the president s pick for the Supreme Court. Nbc justice correspondent Pete Williams is at the court for us this morning, pete, good morning to you. Reporter savannah, good morning. Senators have left town for the easter break, giving Merrick Garland a break from making the rounds. But republicans insist his nomination isnt going anywhere. Its a Supreme Court nominees ordeal, meeting senators one on one, hoping to win them over for a confirmation vote. But so far, the welcome mat is out only at the offices of democrats like vermonts Patrick Leahy and nevadas harry reid, the majority leader. Continuing to insist there wont be any hearing or vote because the next president should choose the nominee. The democrats say under normal rules the nominee would be up for a vote by memorial day. People in my state are some of the most conservatives and most liberals say, hey, do your job, give him a hearing, ask him questions. Reporter some republicans say they are at least willing to meet with garland, though nothings been set up yet. Arizonas jeff flake even suggested voting on garland while president obama is still in office if a democrat is elected president. I would rather have a less liberal nominee like Merrick Garland then a nominee that Hillary Clinton, if she were president , would put forward. Reporter the Republican Leadership put out the word that such 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 this president s term. I would say that if it were a republican president. Reporter the white house released this photo of Obama Meeting with garland and said mr. Obama told supporters in a Conference Call on thursday to make themselves heard and demand confirmation hearings. The Supreme Courts remaining eight justices are back in the courtroom next week and white house supporters are launching a website to push for garlands confirmation. We need nine. Org. Matt, savannah. This morning, were hearing a little more from the alleged american isis fighter captured in iraq, still being held there, and what hes saying about how he ended up with the terror group may surprise you. Nbcs chief Foreign CorrespondentRichard Engel has that story. Richard, good morning. Reporter good morning, matt. 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, he does have intelligence. Hes the first alleged american isis fighter to surrender to kurdish troops in iraq. My name is mohammed. Im from the united states. I studied criminal justice in college in virginia. Reporter in a taped confessional aired on kurdistan 24 tv, the virginian described how he traveled through turkey, linked up with isis in syria and was transferred to the iraqi city of mosul, an isis stronghold. My message to the American People is life in mosul, its really, really bad. We, the people were controlling mosul dont represent the religion. Reporter these statements were made as he was held in captivity. I didnt really support their idoly and 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 fighters, knowing they are close allies of the united states. At the time, i made a decision to go because i wasnt thinking straight and on the way there, i regretted i didnt see myself living in that environment. I would you know, i wanted to go back to, to america. Reporter a u. S. Official told nbc news isis is facing a growing problem of desertions 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. And 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 quaise in custody but the kurds are debriefing him and passing that information along to the americans. Matt, savannah, back to you. Richard engel in istanbul, thanks. Tense on capitol hill at the hearing over the flint, michigan, water crisis. Calling for the resignations of the chief of the epa. People who put dollars over the fundamental safety of the people do not belong in government and you need to resign, governor snyder. This was a failure of got 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 repeatedly assured him that the water from the flint river was safe when, in fact, it was contaminated with Dangerous Levels of lead. Both the governor and epa Administrator Gina Mccarthy expressed remorse over the crisis but mccarthy said because it happened under a stateappointed emergency manager it prevented federal officials from being able to, quote, jump to the rescue. There were some 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 La Guardia Airport here in new york when it flew into some very turbulent skies and then was hit by lightning. The plane was diverted to jfk airport just a few miles away. Airline official also say it landed safely. 55 passengers on board. The faa says it will investigate that incident. A hearing is set on a request to revoke bail for the New Hampshire prep School Graduate convicted of assaulting a classmate. Another unexpected twist this morning. He is now admitting he did miss his curfew but says it was for a good reason. A judge must determine, a, what happened and, b, whats the punishment. Owens future on the line once again. Guilty or not guilty . Guilty. A judge will decide if the prep schooler convicted of misdemeanor Sexual Assault against a 15yearold classmate, should be put behind bars for allegedly violating conditions of his bail. It all started after this reporter bumped into him on a boston subway last month around 1 00 p. M. And then tweeted their conversation. He has to take a bus to da dartmouth and be home by 5 00 p. M. Reporter a source tells nbc news he thought the conversation was off the record. Prosecutors saw the exchange and filed a motion in court saying he violated the conditions of his 15,000 bail. Hes supposed to be his mothers vermont home between 5 00 p. M. And 8 00 a. M. Prosecutors say he traveled between a nearby bus station in 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 will look at that and say tough, you knew what the rules are, youve been convicted of a crime, follow the rules for your bail. Reporter his lawyers say yes, he did travel to boston, and admitted to violating his morning curfew on these occasions, but only to see his lawyers and take classes, classes he wanted to keep private since hes been accosted, insulted and threatened in public. The intense interest in him began last year. The country captivated by the elite prep School Setting where his accuser says the unthinkable happened. I was raped. Reporter here, her voice disguised, her face hidden. You were excited to see her because you wanted to have sex with her. No. Reporter since that trial, he spoke out for the first time, telling newsweek, i walked out of the courthouse with my chin up. Today, back in the same courtroom where it all began. We reached out to the prosecutor and his accuser but havent sketched a response. If the judge decides that he did violate his curfew, he could be carried out in handcuffs from the same courtroom where he first pled his case. Lets get another check of the weather from al. All right, were also going to be watching an area of heavy showers and thunderstorms down through the gulf coast today. Slight risk of strong storms from texas to louisiana. Plenty of sunshine along the Pacific Northwest coast. Sunny and chilly, making its way from the plains on into the great lakes. Well get to your local forecast coming up in the next 30 seconds. World around you. For seeking out the new; for trying the untried; for doing the undone. Why should snacking be any different . Discover all nine flavors of our creamy cheese and tap into your curiosity. The laughing cow. Reinvent snacking. Good morning, im meteorologist kari hall. Low clouds and fog as you head out. We havent seen any major issues as a result and temperatures in the mid to low 50s and heading into the 60s in San Francisco and 66 degrees there and 68 degrees in the north bay and east bay 67 degrees. Well have 70s in the trivalley peninsula as well as the south bay. Temperatures coming down from yesterday thanks to the morning clouds and a stronger ocean breeze and today the last day of winter. Thats your latest weather. Matt . Al, thanks very much. Coming up, a clubhouse divided. Wha