our next newscast is good morning. boiling over. more violence at donald trump's rallies and clashes between his supporters and protesters get out of hand. pepper spray and harsh words. >> go back to africa. >> after at an earlier rally, secret service tackling a man who tried to rush the stage. how will the escalating chaos affect the critical votes on tuesday? meantime on the democratic side, video evidence, the battle over health care. hillary clinton saying bernie sanders was nowhere to be found when she was making a major push for coverage two decades ago. the sanders' team firing back with this video. >> congressman sanders for joining us today. >> we are live with it all. from bad to worse, as if they haven't had enough, residents in the water-logged south now looking for the

weather today. a chance for tornadoes, even more rain as rivers continue to rise. dylan is tracking it all. iditarod attack. facing charges this morning after police say he intentionally rammed his sled into two racers during the iditarod. >> he freaking tried to kill me. >> one dog killed and several others injured. the man now admitting he was drunk but that he never meant to hurt anyone. madonna's meltdown during her performance. how the custody battle for her son could be playing a part "today," sunday, march 13th, 2016. >> announcer: from nbc news, this is "today." live from studio 1a in rockefeller plaza. >> welcome to "today" on this sunday morning. i'm erica hill.

i'm craig melvin, alongside sheinelle jones and dylan dreyer is also here. the race for the white house. first, the results of two races last night, marco rubio winning the primary in the district of columbia and after caucuses in wyoming, ted cruz picking up delegates in that state. >> clashes at donald trump rallies on saturday. at one point the candidate had to be protected by secret service detail when a man tried to rush the stage. >> we have you covered on both sides. let's start with nbc's hallie jackson. good morning. >> reporter: good morning, craig. in bloomington, illinois, bracing for another day on the trail with donald trump, promising to push for arrests of those who interrupt his rallies, to, in his words, stop the craziness. protesters, pepper sprayed during dueling demonstrations

city, and in cleveland, verbal arguments turning ugly. >> go back to africa. >> reporter: in dayton, this dramatic moment, secret service jumping on stage to surround trump, blocking him from a man trying to rush him. this new video showing a different angle, the candidate clearly startled. >> i was ready for him, but it's much easier if the cops do it. >> reporter: online and later on tanlg, trump making an inamto rar about the man. >> then one of my people found his name and said it was probably isis or isis-related. >> law enforcement officials from two different federal agencies say they know of no isis connection, adding there's nothing to indicate any ties. rising tension at rallies so

and her husband discussed not going at all. >> we discussed if anything happened edge to the wall and get out. >> reporter: so you had an exit plan? >> yes. >> reporter: his alre questioning whether to support him if he win. >> it's getting harder every day. >> everybody take a deep breath. we'll see where it goes. >> reporter: ted cruz again is pledging to support the front-runner if it comes to that. >> donald trump, as president, i believe, would be a disaster but i think hillary clinton would be an even worse disaster. >> reporter: now marco rubio is putting some of the blame for what's happening at some of the rallies on president obama, telling the washington post there's, quote no, doubt the president has contributed to the divisiveness. how might all of this affect voters as we head into the key super tuesday primaries less than 48 hours away?

bloomington, illinois, thank you. democratic candidates are setting their sights on donald trump. the candidates are locked in an increasingly tight race on the democratic side. critical state, as hallie just mentioned, set to vote on tuesday. chris kristen welker is in cleveland this morning with with more on all of that. good morning, kristen. >> reporter: good morning to you, erica. campaigning here in critical ohio today. but on saturday, those violent protests loomed large. the rivalry between hillary clinton and bernie sanders is escalating. but both were temporarily unified saturday, blaming donald trump's rhetoric for stoking violent protests at his rally in chicago friday. >> that is not leadership. it is political arson. >> violence at rallies is not what america is about. >> reporter: trump then accused sanders' supporters for starting the demonstration.

by these other people. by the way, some represented bernie, our communist friend. >> reporter: sanders fired back in an interview with reverend al sharpton airing today. >> we have never, never once told anybody to do anything like that. the truth is, this guy really is a pathologyical liar. >> reporter: this comes as the democratic race is heating up. sanders, increasingly competitive in states like ohio, illi, andmiri,fter hi win i s rermti addehe st >> ofng th'roingwn. rorr:tu, c al cle sra b cidma du sccrs of bng at d 1990health car>> i dhe he wa enasinoeare3nd'9 t arsidwe ad video f 93

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ksan we ek ons sunday ing, march 13t 2016. little cold play. >> love that video. love that song. >> can't help but dance. >> tomorrow, the band will be here, rocking rockefeller plaza with their concert. >> you can dance live here on the plaza. >> some of these folks will probably stick around. it's just 4 hours from now. >> who is going to stay? >> cold play. if you stay here, you automatically get a ticket. >> and if anybody gives you a hard time, just say craig melvin said it. >> there you go. let's get you caught up now on the headlines at half past the hour. sheinelle has that.

trump rallies as his supporters and demonstrators reach an all-time low. one man even trying to rush the stage. all this is playing out two days before the next critical vote in five states on tuesday. one person is dead and two others missing after a tugboat crashed into a barge in new york's hudson river. the tugboat sank within minutes of the crash saturday morning. thousands of gallons of fuel were also dumped into the river. second escaped inmate in new mexico is back behind bars. lionel claw escaped with cruz, who was capitaled on friday. they told reporters the shackles and shanks just fell off and that's how they were able to escape. >> fell off. incredible story. madonna's meltdown on stage at her concert in australia over the weekend. some say she's been putting on bizarre performances for a while.

due to her ongoing custody battle over her son, rocco. kelly cobiella has more. >> i want to dedicate this song to my son. >> reporter: madonna called him a rebel heart, and son, rocco, is living up to it. now with dad, guy ritchie, in london, and vying to stay there. madonna has pled for him at concerts. >> no love greater than a moth f hso stinicreay i miss this it up ascois baby picture. >> i probably coulded myself a little more i hehaarednl als in i wld n.

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like war and violence, sex and all those things, you that ihe theater. well, it is all in t. ors ris the neoice op y. >> to 20ingers eacegoryund t e sful career year after year. >> reporter: robinson's success follows an unusual path, playing college football as a lineman at the citadel, then spending a decade working in corporate sales for exxonmobil and 3m before taking on the stage. >> i was always singing at weddings and singing the lord's prayer and there is always invariably some little old lady walking up to me saying, you know, you should be doing this for a living. >> reporter: and at 30 years old, he took a leap of faith when he got a full scholarship to boston university's opera

there are not a lot of guys that look like you that sing opera. >> not a lot of guys that look like me that work for 3m. i think that the opera world is a microcosm of the real world. the real world doesn't all look like us. you have to find a way to overcome that. >> reporter: after years of establishing himself in italian and german operas, robinson is tackling rolls he aroidvoided for the majority of his career. >> i'm a big black guy, i'm a bass, everyone who sees me and hears me speak thinks two things, sing old man river and i bet you can sing corgi. >> reporter: he started with showboat. and now looks to milan as he prepares to play the lead role

>> i've seen both sides having gone to school there. this story is written about blacks from the other side of the track who weren't afforded the opportunities i was afforded in that very town. >> reporter: robinson hopes to reach a new audience, willing to take a chance on an old classic. >> everyone can't sing like michael jackson or beyonce or rap like jay-z, but that doesn't mean you can't express yourself musically. two chains and jay-z should know about morris robinson. >> one of the coolest guys i've met in a while. one of his missions now is to introduce young people to opera. he is he he said you'd beurprised how many people he talks to. >> what a great story. >> love that. >> thank you very much. still to come, a group of

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