Commuter chaos in the nations capital. Washington, d. C. Shuts down its subway system for an entire day with little notice to hundreds of thousands of passengers. And the madness begins. Three weeks of basketball mayhem hits off with the first of 67 ncaa tournament games. Good morning from the studio 57 newsroom at cbs news headquarters here in new york. Good to be with you. Im annemarie green. Well, the morning after critical president ial primaries in five states, Hillary Clinton has solidified her grip on the democratic nomination. While the republican race seems headed to a convention showdown. Donald trump scored big wins in at least three states, including a blowout in florida, and is resist neck and neck with ted cruz in missouri. Meanwhile, clinton dealt a blow to Bernie Sanders, taking at least four of yesterdays in missouri, a race that is still too close to call. Thanks to last nights victories, clinton picks up 400 new delegates and gives her 1,500 to date which is twothirds of what is necessary to secure the nomination. Don champion is following the democratic race in miami. Don, good morning. Reporter good morning, annemarie. Certainly the kind of night the Clinton Campaign needed after that shocking loss to Bernie Sanders in michigan last week. Clinton rebounded, once again, be handing the vermont senator some heavy losses in the south, while also slowing some of his momentum in the midwest. This is another super tuesday for our campaign. Reporter Hillary Clinton scooped up delegates all over the map. Her biggest victories in florida and ohio. In florida, where more than half of voters were over the age of 50, clinton won handedly, getting more than threequarters support. Concerns over her past view on her in ohio, where she won 50,000 a year. Our campaign is for the steel worker i met in ohio on sunday night who is laid off but hoping to get back to work. Reporter clinton once again received overwhelming support from minority voters, getting more than 70 of the hispanic and latino vote in florida. Voters in all five states believe she has a better chance than sanders of winning the general election. Clinton turned her attention to the gop frontrunner. When we hear a candidate for president called for rounding up 12 Million Immigrants and banning all muslims from entering the United States, when he embraces torture, that doesnt make him strong, it reporter despite his undaunted. She has a super pac where among other special interests have received 15 million from wall street. Reporter looking ahead at the upcoming calendar, sanders believes the votes in the west will be favorable to his campaign, but as clinton proved last night, she is capable of winning around the map. Don champion in miami, thanks a lot, don. Back to the republicans now. As Major Garrett reports, it was a big night for donald trump, but not everything he hoped for. Reporter despite wins in florida, illinois and north carolina, donald trump did not land the knockout blow that would made him the presumptive nominee. He hit a road bump in ohio. John kasich won and making a contested convention in cleveland more likely than not. From the bottom of my heart, but i want you to know something, we are going to go we are going to go all the way to cleveland and secure the republican nomination reporter it was kasichs first primary win and last stand. He said a loss in his home state would have ended his campaign. He won with a late surge of support from moderates and voters who made up their minds the last few days. Yesterday did end the campaign of florida senator marco rubio. While it is not gods plan that i be president in 2016 or maybe ever, while today my campaign is suspended, the fact that ive even come this far is evidence of how special america truly is. Reporter it wasnt supposed to be this way for rubio. Once described as the republican savior, rubio was crushed by trump in his home state. The other winner take all contest. Trump has a solid lead in delegates and despite what has been a nasty personal campaign, unifying the republican party. We have a great opportunity and the people that are voting are democrats are coming in, independents are coming in and very, very importantly, people that never voted before. Its an incredible thing. Reporter so far, trumps closest competition has come from texas senator ted cruz. He finished close to trump in north carolina. God bless the great state of north carolina. Reporter where he spent time and money. Every republican has a clear choice. Only two campaigns have a plausible path to the nomination ours and donald trumps. Reporter there are now three republican candidates left in a race that looks like it will continue all the way to cleveland in july. Major garrett, cbs news, palm beach, florida. Donald trump now has more than 600 delegates pst of the though there are more than a thousand delegates up for grabs, any kind of run by cruz or kasich would deny trump an outright victory. Cbs news political and face the nation moderator John Dickerson says kasichs win in ohio will slow down trump but its still not clear if it will matter in the end. The question on the republican side is whether that speed bump grows into something more. For those who have been a part evident antitrump movement they see glimmers of hope that they can deny donald trump the number of delegates that needs, 1,237, to get the nomination before the nominating convention in cleveland. In they can deny him that number, then they can work it out in cleveland and have a fight either among ted cruz, who is second in the number of delegates accumulated, or perhaps maybe a long shot spot for john kasich. We will see how much they can make out of this victory for john kasich in the days going forward. For Hillary Clinton, on the win in two different ways. One, she added to her already dominate delegate lead with the big victories, particularly in florida, but also for her, she was able to win to the states that give her momentum, not only winning in the south but also in ohio. So more contests to go for both parties probably still all the way into june. For cbs news, im John Dickerson in new york. Coming up cbs this morning, we will have more on the possibility that donald trump is headed to a contested president obama could announce his nominee to replace antonin ska calia on Supreme Court as early as today. The first Indian American could be the first Indian American to the tornadoes are hitting the midwest. High wind advisories and warnings are posted this morning in iowa, illinois, indiana, wisconsin, and ohio. A tornado touched down west of peoria, illinois, damaging several farms. But no injuries are reported. Overnight, powerful winds hit east moline, knocking over a truck and some power lines and severely damaging several homes. Some residents trapped inside had to be rescued by police and firemen. This morning, washington, d. C. s metro system is at an absolutely standstill. City official shut it down at midnight for at least 24 hours while crews perform emergency safety inspections on the systems cables. This comes just a day after fire broke out in a metro tunnel. One person died last year in a similar incident. Commuters on the nations second busiest subway system only got half a days notice to make hardship this causes to the region and to the commute. The shutdown prompted the federal government to grant unplanned days off for employees, though, Government Agencies are officially open. Schools will also remain open, those all absences will be excused. Apple filed its final court brief in its battle with the fbi before next weeks court appearance. Apple says the american Founding Fathers would be appalled by the governments request to have apple unlock an encrypted phone tied to a terrorism case. Apple is defying a court order to unlock the phone used in the San Bernardino attacks. North korea sentenced an american student as to 15 years of hard labor. Otto warmbier was sentenced in a trial this morning. The university of virginia undergraduate was arrested in january. North korea says warmbier stole a propaganda banner from his hotel. Coming up on the morning news. A guilty plea in a celebrity a man admits to stealing nude selfies some of holds biggs names. A woman who charmed the obamas breaks out new moves with the harlem globetrotters. This is the cbs morning news. Start your trugreen lawn plan today. Trugreen. Live life outside. And at progressive, we let you compare our progressive direct rate. Great deals for reals . And our competitors rates sidebyside, so you know youre getting a great deal. Saving the moolah. As you can see, sometimes progressive isnt the lowest. Not always the lowest im being your hype man. You said i was gonna be no, we said we wouldnt do it. Im sorry, we were talking about savings. I liked his way. Getting that moneeeey talking about getting that moneeeey savings worth the hype. Now thats progressive. Soup and sandwich and clean and real and school night. Good, clean food pairs well with anything. Try the clean pairings menu. At panera. Food as it should be. One crest 3d white smile. Is all it takes. To turn the tables. Crest 3d white toothpaste. P. Removes 5 timespmore stains. Than the red box. For a smile like that, crest 3d white. Five people on a small private plane are all okay after a landing gear failure. The plane skidded in on its belly last night in van nuys, california. The flight was transferring a patient between million facilities. A hacker pleads guilty to stealing celebrity nude selfies and changes ahead at the Ferguson Police station. Those are some of the headlines on the morning newsstand. The New York Times reports an overhaul of the Police Department is taking place in ferguson, missouri. A federal investigation found racism in the citys criminal Justice System after the deadly teenager Michael Brown in 2014. The pittsburgh postgazette reports conspiracy and child endangerment charges against three former leaders ever a Roman Catholic order in western pennsylvania. Prosecutors say they allowed a known sexual predator to arrest more than a hundred children. The san fris can priests were ordered to turn themselves in by friday. The Los Angeles Times reports that a hacker will pleat guilty to hacking the emails of hollywood stars. Brian ryan collins is accused of stealing emails from hollywood celebrities accounts. He could get up to five years in prison. Variety reports some members complained in a letter to the academy about remarks by chris rock and sasha barren cohen. The letter was signed by dozens. More culturally sensitive in future shows. Still to come, Indiana Jones whips back into action after Harrison Ford reprises his character. To find relief. Paint a different picture. Talk to your doctor about oic and prescription treatment options. Look like this. Feel like this. Look like this. Feel like this. With dreamwalk insoles, turn shoes that can be a pain into comfortable ones. Their soft cushioning support means you can look like this. And feel like this. baseball on tv with heart failure, danger is always on the rise. Symptoms worsen because your heart isnt pumping well. Of people die dog whimpering within 5 years of getting diagnosed. But theres something you can do. Talk to your doctor about heart because the more you know, the more likely you are. V dog whimpering to keep it pumping. Heres a look at todays forecast in some cities around ems so much more exciting when you hear that music, right . On the cbs moneywatch, Indiana Jones is swinging back in action and its easier to travel to cuba. Hena daniels is at the New York Stock Exchange with that and more. News that the Obama Administration will not allow oil drilling in the Atlantic Ocean is being hailed by environmentalists. It reverses a decision made last year that would have opened up a large area of the coastline to drilling. The oil industry is not pleased. The president of the American Petroleum institute says the american decision, quote, a appeases extremists. The dow added 22 points. The s p lost three points and the nasdaq slipped 21. The Obama Administration travel to cuba. Americans are now permitted to travel on their own with no prior permission. The new rules, besides making it easier for family members to see each other, will likely be a boom to cuban tourism. A series of food safety issues took a toll on the bottom line at chipotle. Sales dropped over 26 last month, more than expected by analysts. That is its first quarterly loss as a public company. The Mexican Restaurant chain is working to return from a scare of norovirus outbreak. Harrison ford and Steven Spielberg are teaming up to make a fifth Indiana Jones movie. It made 2 billion at the box office worldwide. There is no word on plot details but disney says the new movie will be released in july of 2019. That is when ford will be 77 years old working out. You have to be limber for that role. He looked great in star wars so im sure that will continue. He is an icon, right . Hena daniels at the New York Stock Exchange, thanks a lot, hena. March madness claims its first victims. We will show you who got picked off and who is moving on after the first round. Never thought about the coffee i was drinking having acids. It never dawned on me that it could hurt your teeth. My dentist has told me your enamel is wearing away, and that sounded really scary to me, can you fix it, can you paint it back on, and he explained that it was not something that grows back, its kind of a onetime shot and you have to care for it. He told me to use pronamel. Its gonna help protect the enamel in your teeth. It allows me to continue to drink my coffee r and it was a real easy tswitch to make. Nails. Introducing the amop\ electronic nail care system. File, buff, amop\. Find it in the footcare aisle. Dont let a cracked windshield ruin your plans. Trust safelite. With safelites exclusive on my way text youll know exactly when well be there. Giving you more time for what matters most. Heres a look at todays forecast in some cities around the country. March madness will cost employers in the United States 4 billion in lost productivity which, you know, they did a study, wherever it is every they are making the assumption that its employees werent working on their brackets should be working and if youve ever black and blue in an office, is farther from the truth. If we werent filling out brackets, we would be on facebook. I dont know what is he talking about. March madness tipped off with the first four. First up, Gulf Coast University taking on barley dickerson. Ftcu won 9665. Next up for the eagles, top seeded unc. A matchup more fit for the sweet 16, Wichita State and vanderbilt vanderbilt. In another blowout the shockers got the best of the commodores. Wichita state gets arizona in the first round. Holy cross tonight taking on southern university, followed by michigan and tulsa. The action heads to cbs tomorrow. Duke takes on uncwilmington at noon eastern. Virginia mclauren captured hearts when she distanced with president obama and the first lady at the white house last month. The harlem globe trots got down with the 100yearold grandma when she got down with them. In a world thats trying to turn you into someone new. One hair color wants to help you keep on being you. Nicen easy. Naturallooking color. That even in sunlight, doesnt look like hair color. It just looks like you. V nicen easy colorv as real as you are. Yourself all day. Denture paste to seabond denture adhesive seals. Holds stronger than the leading paste all day. Without the ooze. Feel secure. Be yourself. X a record setting time at the iditarod iditarod. It was finished in less than 8 and a half days. His father was second and the racers whose sled was attacked by a snowmobiler was third. The Tampa Bay Rays will have a cuban defector on their roster for an exhibition next tuesday in havana. The rays added outfielder dayron to the rays list. To play in cuban since 1959. On tuesday, lawmakers got a closer look at the technology. Craig boswell reports. Reporter its a glimpse of the road ahead. Automakers brought several semiAutonomous Cars to capitol hill so members of congress could go for a ride. Cameras and radar allow the vehicles to steer, brake, and accelerate on their own. Its really remarkable how far they have already come with this. Reporter but senator jon thune knows the future of the cars that can drive on its own. His Committee Held a hearing looking at what road blocks need to be cleared to get the vehicles on the road. Almost every major automaker is working on the technology, along with google, which has spent years testing the cars. This estimates that 38,000 people were coiled americas roads last year and 94 of accidents involve human errors. Selfdriving cars could help us change that. Reporter he pointed out many states have yet to allowself a google lexus suv outfitted for selfdriving accidentally hit a california. Mechanical engineering professor believes Autonomous Cars arent ready net. She says sensors cant demonstrator a priver. If you have a sudden downpour or rain or snow, then we worry how the cars will reason. Reporter she wants a federal Testing Program put in place. Automakers say they are ready to work with the government to get selfdriving cars on the road. Craig boswell, c