welcome to "world news tonight." breaking news. violence on the campaign trail. a protester rushing donald trump onstage, the secret service jumping into action. this, after he cancels a major rally. heated clashes spilling into the streets. trump taking no blame for the chaos. >> we've got to fight back. >> but he is catching serious heat. >> donald trump has created a toxic environment. >> that is not leadership. it is political arson. the airport workers assigned to protect your valuables stealing right out of suitcases, and before you check your bags, the photo you should take to protect yourself. the controversial operation to bring 17 elephants from africa to the u.s. but is it saving their lives or robbing them of their freedom? and the heart-stopping

buzzer-beater. the clock counting down. that half-court shot. >> are you kidding me? >> bring on march madness. good evening, and thank you for joining us on this saturday. i'm cecilia vega. tonight, tensions higher than ever in the race for the white house, just days before voters head to the polls. in dayton, ohio, today, this moment of panic at a donald trump rally. secret service agents rushing to his side after a protester tried to rush the stage. it comes after that chaos in chicago, violent clashes between protesters and supporters inside that auditorium. the event abruptly canceled. hundreds of demonstrators outside, too. two police officers injured. and tonight, donald trump taking no responsibility for any of it. the reaction from his rivals on the campaign trail fierce. abc's david wright starts us off at tonight's trump rally in kansas city.

>> go back home to mommy. >> reporter: tonight, tensions on the trail are flaring up. donald trump just finished scolding one protester in dayton, ohio. >> because i have to do it myself. i know it's not -- >> reporter: when another leapt over the barricade. watch there, as the second protester rushes the podium. the secret service, instinctively flanks the candidate as agents subdue the protester. and frog march him out. he's now been booked for disorderly conduct. >> thank you for the warning. i was ready for him. but it's much easier if the cops do it, don't we agree? huh? what a great job. >> reporter: the trump campaign was already on edge today. after the melee last night in chicago. trump haters infiltrated the arena, bent on disruption. >> donald trump is not welcome in chicago. we're going to make that clear. >> reporter: trump canceled the rally. provoking a violent reaction from trump supporters. >> we want trump! we want trump!

>> reporter: fistfights. a police officer seen bloodied. today, trump didn't back down. calling the protesters thugs and communists. >> some represent bernie, our communist friend. or they have organized professionally staged wise guys. we've got to fight back. >> reporter: the tensions simmers for months have reached a boiling point. the rhetoric, increasingly violent. the candidate, sometimes egging on supporters, urging them to take on the protesters. >> i'd like to punch him in the face, i'll tell you. knock the crap out of them, would you? seriously. they'd be carried out on a stretcher, folks. >> donald trump has created a toxic environment, and a toxic environment has allowed his supporters and those who sometimes seek confrontation to come together in violence. >> reporter: today, marco rubio was asked if he'd still support the gop ticket if trump is the nominee. >> i don't know.

it's getting harder every day. >> reporter: here in kansas city, missouri, tonight, another big trump rally planned. heavy security inside the venue right now. all calm so far. but outside, the trump supporters and the trump haters are taunting each other. cecilia? >> david wright leading us off tonight. thank you. and this weekend is crucial in the race for the white house. just three days until major primaries. here's the map. voters head to the polls in five states. hundreds of delegates at stake, and tuesday is a make or break day for many of those candidates. bernie sanders hoping to win ohio after his upset victory in michigan. and hillary clinton fighting to keep her lead. tonight, both candidates leveling harsh attacks at donald trump. clinton calling his rhetoric political arson. here's abc's mary bruce in cleveland. >> reporter: after the eruption of violence in chicago, tonight, the democratic candidates in agreement. accusing donald trump of playing with fire. >> the ugly, divisive rhetoric

we are hearing from donald trump is not only wrong, it's dangerous. if you play with matches, you can start a fire you can't control. that's not leadership. it is political arson. >> reporter: bernie sanders is defending his backers, seen in those crowds. >> what our supporters are doing is responding to a candidate who has, in fact, in many ways, encouraged violence. >> reporter: but that's where their agreement ends. courting voters in chicago, sanders went after embattled mayor rahm emanuel, calling for clinton to reject his endorsement. >> i think he has done a very bad job. >> reporter: the campaigns are making an all-out push, crisscrossing the key states and plastering the air waves. sanders is spending big in the midwest, especially in ohio, where he's hoping to pull off another surprise upset. >> ohio has the opportunity to lead this country forward.

>> reporter: clinton is feeling confident in florida, where she has a double-digit lead in several polls. >> thank you so much, tampa! >> and mary joins us from cleveland now. all eyes on ohio before this tuesday primary, and a judge has ruled that some 17-year-olds will be able to cast a vote. so, mary, is the sanders team hoping this gives them a leg up? >> reporter: absolutely, cecilia. 17-year-olds here in ohio will be able to vote in tuesday's primary, so long as they're 18 come election day in november. this is a big win for bernie sanders, who so far has had support among those voyounger voters. cecilia? >> he certainly has. mary, thank you. we want to move on to historic flooding along the gulf. tonight, flash flood watches and warnings in six states and the rivers are still on the rise. in burkville, texas, take a look at this. the sabine river cresting. this entire neighborhood under water. and in covington, louisiana, boats were still taking people

from their flooded homes today. across the gulf, thousands of families forced to evacuate. and abc's phillip mena was right there in covington as those evacuations were under way. >> reporter: tonight, the race to shore up the banks of those rising rivers. from louisiana to tennessee, water up to two feet in some parts. more than a thousand homes flooded. and more now threatened. >> if it were not for the sandbags, it would be topping the levee. >> reporter: the national guard crews rescuing nearly 2,100 people over five days. hundreds of family pets scooped up, too. here in covington, louisiana, the winter family capturing when the water rushed into their home. >> it was actually throwing through the house. >> reporter: they scrambled to save what they could before it was all ruined. >> water on the baseboard, that's about where it was. so, fortunately, that's as high as it got up. i'm sure it did a lot worse. >> reporter: that's about eight inches high. >> yeah. >> reporter: down the street, robin and her husband caught

offguard, too. it went from the ditch into your house in 20 minutes. >> 20 minutes. >> reporter: you didn't have time to throw sandbags in front of your door. >> didn't even think about getting them. >> reporter: cecilia, the fire department is using five-ton trucks like that one, and boats. it started around noon today, and the rescues have not stopped. they're trying to pull those still trapped inside their flooded homes to safety. cecilia? >> phillip, thank you. abc meteorologist indra petersons joins us now. you were telling me, the full of states are still going to get hit tonight? >> it is incredible. only the middle of march and places like shreveport, louisiana, they have set the record for the amount of rainfall they've seen. showering still continuing to pushing through that region. tonight, even though they're subsiding, we still have that threat for river flooding for the next several days. to make matters worse, the threat of severe weather through sunday. threat of tornadoes right in that same region. and out towards the west coast, a series of storms continues to make their way through. powerful system making its way through portland and seattle this evening. winds as high as 60 miles per hour. the ground there is saturated. if threat of the trees being ripped right out of the ground is very threatening tonight.

and good news, a lot of snowsie. >> they do. indra, thank you. we want to turn now to new york's hudson river and a deadly crash. the search still on tonight for two missing crew members. a barge and a tugboat colliding. the entire boat sinking. spilling 5,000 gallons of oil into the river. one bridge worker did not make it. and to a fiery collision in the west. police investigating what may be a drag race gone wrong. this fireball captured from the skies near seattle. three people injured in the middle of the night. the street in renton notorious for drag races. and in alabama, an overnight riot has a prison still on lockdown. these blurry images apparently taken by inmates. prisoners posting she's shot t shots on social media. officials say the inmates started that fire and stabbed their warden and a correction officer during the unrest. and we have breaking news tonight from new mexico. the manhunt for two escaped convicts is now over. late today, the second inmate

captured. the man was convicted of this armed robbery that ended in a shootout with police. tonight, both he and his accomplice are now back in custody. and the investigation into how they got away is under way. here's abc's ron claiborne. >> reporter: tonight, lionel clah in custody. after police say he was hiding out in an albuquerque apartment, hundreds of mifls away from where he and another violent criminal staged that daring escape. >> he literally stepped out the front door, came out and surrendered. he did say to us, he didn't want anybody else to get hurt. >> reporter: clan and fellow inmate joseph cruz fled wednesday while being transported between prisons. they had been handcuffed and shackled. cruz was arrested on friday after being spotted on the street. >> how did you get out of your shackles? >> i picked it. picked the locks. >> reporter: hours after their escape, the two were videotaped by a hotel security camera. wearing civilian clothes, smiling and seeming at ease. cruz says they had no outside help. investigators say they don't believe that.

clah, who had been doing time for armed robbery, was involved in a dramatic 2007 shootout with police. captured on dash cam video. cruz was convicted of a drug-related murder. authorities in new mexico say the circumstances of that double escape are, in their words, suspicio suspicious. they're looking at the possibility of someone from the outside may have helped those two prisoners get away. and also, the possibility of someone from the inside may have helped them. cecilia? >> ron, thank you. we want to turnover seas, to a heavy duty air lift involving wild elephants. more than a dozen of them. american zoo officials pulling off a secret rescue. and now the debate over their transfer intens ififntensifying. abc's eva pilgrim with the details. >> reporter: 17 elephants fighting to survive a severe drought are now safely in the u.s. the life-saving mission, an international effort. especially outfitted 747 carrying them from swaziland to texas.

where huge lifts placed the 10,000 pound elephants on big rigs. >> it's been a long, trying time to get them here. and i am confident in saying that if we did not move these animals here, they would not be alive. >> reporter: but it almost didn't happen. an animal rights group asking the court to stop the move, but the judge siding with the zoos. the animal rights group saying they had a safe location and money ready to care for the elephants in the wild. inste instead, the zoo secretly shipped them to the u.s., robbing them of their freedom. tonight, zoo officials standing firm, saying the move saved the animals, who were thin and in danger. jack hanna says the elephants will get top notch care in their new home. >> i would choose one of these zoos to go to. i would do it in a split second. >> reporter: already tonight, their new caretakers posting

pictures of them eating and drinking, saying the elephants are doing well. eva pilgrim, abc news, new york. we turn now to the buzzer-beater we cannot stop watching here. less than a second to go on the clock. uconn and cincinnati and that prayer from half court. march madness, bring it on. here's abc's gloria riviera with the shot that will go down in history. >> reporter: uconn's cinderella story started when cincinnati's potential game-winning lay-up was denied, as the huskies refused to lose. in the first overtime, the bear cats again missing another chance to finish it. cincinnati looking strong in triple overtime. with less than a second to go. boom, kevin johnson hits a three-pointer to seemingly seal the win. >> johnson has hit two! >> reporter: then, just watch. >> this one's good if it goes -- >> oh, it did! >> holy cow! >> i'm so happy that shot went in.

>> reporter: a 62-foot jumper. welcome to march madness. let's see that again. the freshman guard not even a great three-point shooter this season. but that shot forced a quadruple overtime. >> this team never gives up. we keep fighting. >> reporter: the huskies rolled in the fourth o.t., keeping hopes alive they'll have a spot in the ncaa tournament. gloria riviera, abc news, washington. >> could watch that shot over and over again. there is still much more ahead on "world news tonight" on this saturday. caught on camera. airport workers helping themselves to your luggage. the warning for anyone packing for a trip. and, she was a real hit at 106 years old. kicking up her heels at the white house. how the birthday girl is celebrating today, now at 107. so, can you guess the song she wants to dance to tonight? this just got interesting. why pause to take a pill? or stop to find a bathroom?

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what happens when you check your bags at the airport. tonight, the shocking surveillance video, thieves helping themselves to your valuables. and they're the very people who are supposed to be keeping your luggage save. here's abc's marci gonzalez. >> reporter: tonight, police with a renewed warning for travelers, after this -- two baggage handlers ator land doe international airport, caught on camera, stealing right out of suitcases. orlando police say daniel diaz acts as a lookout. the female worker sitting there unaware, as tall lehan droe deleon crawls behind the convey yore belt to steal a $1,500 lap top. both men arrested, pleading no contest to the charges. this is far from an isolated incident. in 2014, baggage handlers in los angeles taken away in handcuffs after police claim they stole electronics, jewelry, even clothes. the same type of crime investigators say is shown in this video from philadelphia. and while locks and plastic wrap may not be much of a deterrent

to thieves, experts say there are ways to avoid becoming a victim. keep valuables and medications with you when you travel. and opt for inexpensive luggage. >> if you travel with expensive luggage, it's probably the one piece of luggage that's going to be targeted more than anything else. the chances of you being targeted goes up dramatically. >> reporter: also, take a photo of your bag after it's packed and before it's zipped. that way, if you have to, you have prove what was in there. and if you do notice something missing from your baggage, don't just notify the airline. call the police and file a report right away. cecilia? and there is still much more ahead on "world news tonight." when we come back, when things go very, very wrong at work. about 17 floors high, in the windy city, no less. and a tragic turn at that famous annual race in alaska. tonight, a late break in the case that took the life of this og. case that took the life of this dog. o you are.

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the most common side effects are headache, diarrhea, and dizziness. all my life, he's protected me. now i am giving back. ask their doctor about once-daily namenda xr and learn about a free trial offer at namendaxr.com. ♪uh. introducing centrum vitamints. a new multivitamin you enjoy like a mint... with a full spectrum of nutrients... new centrum vitamints. to the "index" now, and to the "index" now, and tragedy on the iditarod trail. officials at that legendary alaska race say a man apparently rammed his snowmobile into two of the dog teams, killing this 3-year-old dog, nash. injuring several other dogs, too. the man claiming responsibility tonight says he was drunk. late word tonight of an arrest. the teams involved vowing to continue on. and to the heart-stopping moment above the windy city. a quiet day at work turned

upside down for two window washers stranded on scaffolding there between the 15th and 17th floors of a chicago high rise. good news now, those window washers are safely back on solid ground. and to a big celebration you may remember virginia mclaren and her visit to the white house. dancing in pure delight at meeting the president and the first lady. >> i am so happy. >> we are happy to have you. >> well, virginia was just a kid back then at 106, but today is her 107th birthday, and the music she says she wants to dance to on this big day? some james brown, of course. we wish her a lot of dancing tonight. before we wind things up tonight, a pop quiz. those clocks forward or backward? one thing is sure -- >> it's okay, i'm losing an hour of beauty sleep. you know, i'm kidding. >> we sure are. why do we have to change the clock? ocks?nswer when we come back. the answer when we come

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if you want help improving your a1c and blood sugar numbers with a non-insulin option, ask your doctor about once-weekly trulicity. and click to activate your within. okay, brace yourself. it is that time again. the spring forward ritual despised by all of us who are so sleep deprived. but tonight, abc's john donvan asks that annual question -- why do we have to do this anyway? >> reporter: in this one aspect, we are a united america. our uncertainty over this daylight saving thing. >> which way do we turn the clocks? forwards or backwards? >> let me think for a second. backwards? >> um, i think backwards. >> reporter: the answer is that the clock moves forward tonight, one hour, which is the hour of sleep you're going to miss. unless, of course, you live in arizona or hawaii, where daylight saving is not observed. lawmakers in some states including california, alaska and

rhode island are looking to opt out, also, of the twice a year time shift. why do we do this anyway? >> we were sleeping through those early morning sunrise times in the summer. and that was considered a waste of a tremendous natural resource. >> reporter: that's the main reason why during both world war i and world war ii, the u.s. went to daylight saving full-time. in part, to save energy. but some studies now days suggest people drive even more when it's lighter later, and some say there are potential health drawbacks. one study in michigan showed an association between tonight's lost hour of sleep and a 25% jump in heart attacks a day later. still, it's how we live, most of us. >> i like the fact that tomorrow, it will be lighter later. >> reporter: if you still find it confusing, at least your phone will have the right time on it tomorrow morning. just keep it charged. john donvan, abc news, washington. >> don't forget to change those clocks. "gma" and "this week" in the morning. we will see you right back here tomorrow night. i'm cecilia vega in new york.

have a wonderful saturday. good night.

next on abc 7 news, with a charter bus full of people a freeway intersection turns into a shooting gallery. also with rain, the crews take action on a hillside haunted by road issues. and meteorologist drew tuma is tracking a storm. this is abc 7 news. it's very scary. >> a night of fun turns into a night of terror after gunmen open fire on a party bus early this morning. and right now the shooters are on the loose. good evening, i'm eric thomas, the shooting sent several people to the hospital all happening in oakland coming up the eastern span of the bay bridge not far from the toll plaza. abc news reporter cornell barnard is live there.