The danger zone. The wicked Winter Weather a powerful linear system fueled by the strongest el nino on record raking across ten states. The storm mangling the landscape, ripping apart homes and taking lives. The glass is breaking and you can hear things flipping around outside, i mean, just total carnage. Reporter with three killed on tuesday and dozens injured, convent, louisiana, was in the bullseye, 160 homes demolished. We went from the floor to the ceiling, from the wall to the floor. Reporter braxton lott, his wife and three small children rode out the storm in this trailer. They were pulled into the air and rolled over several times across the street. Savannah clinging to was being sucked out of a window. She was like flying out the window literally. Ankles. Reporter with up po to 30 tornadoes reported in pensacola, florida, a twister smashed apart an apartment complex. Traveled two miles, described as a war zone, homes shredded, rvs flipped over and cars tangled in trees. With the same weather system triggering up to 18 inches of snow in the midwest, at least 67,000 have lost power and now more could, too. A state of emergency as the threat across yet. As the rain continues to hammer down here in raleigh, we remain under a Tornado Warning until a bit later on tonight. Er,he storm is moving towards washington, d. C. , and your area in new york. Its expected to hit that region around 11 00 tonight. If there is some good news, it should be packing a bit of a lighter punch. Lester . All right. Miguel almaguer tonight, thank you. Tonight the scandal involving dangerous air bags in millions of cars appears to be growing even larger with u. S. Senate investigators saying they have uncovered evidence that the Takata Corporation was deceiving automakers for years about its defective air bags, and there is a growing recall could now grow to cover half of the cars on american roads right now. Nbcs tom costello has details. Reporter it was just before christmas when 52yearold joel knight was killed in South Carolina. His 2006 ford ranger hit a cow on a country road. The takata air bag inflater exploded on impact. When it contact, this could have prevented us, his death couldav been prevented. Reporter the coroner found metal shrapnel that came from the air bag also severed his spine. At least nine have been killed from exploding air bags. Now Senate Investigators say internal emails show takata was aware its air bag inflaters were defective and yet deceived its customers, the automakers for years. A 2006 takata email says reports were cherry picked and somebody was schmoozed to accept certain deviations. In another email an customer requests records or makes an audit well have a lot of failures, sometimes 38 , but takata disputes whether the writer had the right knowledge. They were manipulating data to make it look like this explosive device was in fact safe. Reporter in a statement takata says its deeply sorry for all fatalities and injuries that have occurred and the issues raised in the emails are entirely inexcusable and will not be tolerated or repeated. Its already been hit with a record 70 million fine. A stunning 24 million vehicles are under recall for a potentially defective air bag. Now, regulators are under congressional pressure to expand the recall to include every takata air bag in america. Potentially 120 million vehicles. That would be nearly half the cars on the road. Meanwhile, in South Carolina the Knight Family is suing both takata and ford. That someone could be so inconsiderate of someones life. Reporter over an air bag meant to save took yet another. Tom costello, nbc news, washington. Donald trump is aiming for a knockout victories. The gop frontrunner could be headed for a super tuesday sweep if his opponents cant frustration is growing from some in the party as rubio and cruz continue to target each other, not the man who is charging towards the nomination. We have it all covered tonight starting with nbcs katy tur in houston. Katy, good evening. Reporter good evening, lester. Donald trump is looking more and more like the favorite to win the nomination, and now the last nominee, mitt romney, is taking aim. Donald trump with evangelical leader Pat Robertson in virginia today trying to hit ted cruz where it hurts, targeting christian conservatives at regent university. Ive got to be a good person today, at least for the next hour. Reporter coming off his big win in nevada. Soon the country is going to start winning, winning, yorker is looking for a lock on the nomination sooner rather than later. We might not even need the two months, folks, to be honest, all right. Reporter around if polling is indication he could be right. The billionaire resonating across voting blocs. We won of the evangelicals, we won with young. We won with old. We won with highly educated. We won with poorly educated, i love the poorly educated. Reporter nevada numbers like New Hampshire and South Carolina show trump won evangelicals, conservatives, moderates, those who are worried about immigration, those who wanted an outsider and those who are angry. Trumps abrasive tone working. Stay on course, stay on message. Reporter in fact, donald trump alone got more votes than total votes cast in nevadas 2012 gop caucus. Today that cycles nominee mitt romney speculated trump has something to hide. The reason that i think it that theres a bombshell in there is because every time taxes he dodges and delays. Reporter the candidate repeatedly saying he will release his taxes at some point. The trump effect is in full effect. Now hes looking for a knockout. Thinks three chief opponents all have to run in their home states and trump could beat them haul. He can beat kasich in ohio. He can beat rubio in florida and it can all can begin in next tuesday in texas ted cruz is suddenly the first one voted off the island. Reporter step setting the rivals up for a Lone Star State showdown. Katy tur, nbc news, houston. Reporter im Hallie Jackson in texas, a state where they remember the alamo, but its a different kind of battle. Ted cruz is winning here. A new poll shows hes up double digits overump, 15 points. It is good to be home. Reporter nationally though, hes neck and neck with marco rubio for second place. The two fighting to be the trump alternative but fighting each other first, all while trump picks up delegates and you worry youre wasting your time attacking marco rubio instead . Thats an interesting question given im the only candidate on the debate stage who has consistently pointed out Donald Trumps liberal record. Reporter given that it hasnt worked yet . Well, at this point hes won two of the first three states and ive won one. Reporter cruz looking now to super tuesday in texas where today he won the endorsement of the governor. In his home state where he must win, his confident campaign pointing to 27,000 volunteers here. Rubios campaign equally confident in their strategy, wait for cruz to fail and lay off trump, for now. I dont have any voters begging me to attack anyone. Im not in this race to attack any republican. Im more than happy to show differences. Reporter but the florida senator has what could be his own alamo to fight in the Sunshine State which awards all its delegates to the winner meaning a second place finish wont matter. That primary three weeks away but maybe the beginning of the race. Hallie jackson, nbc news, houston. The discussion over the Supreme Court escalated to a new level as president obama hit back at republicans who said they will refuse to meet with any potential nominee until the next president is election. The nbc has learned is vetting a republican governor for the vacancy, a move that seems designed to put gop senators in an uncomfortable position. Our justice correspondent Pete Williams has details. The notion that theres some twomonth period reporter at the white houseee with the king of jordan the president tried to keep the heat on Senate Republicans and their leader Mitch Mcconnell for saying choosing a Supreme Court justice should be up to the next president. The American People are going to have the ability to gauge whether the person ive nominated is well within the mainstream. Thank you, thank you. Reporter and democrats let it be known that on a long list of potential nominees is brian sandoval, the republican governor of nevada and the states first hispanic federal judge. This is a way for house to extract maximum pain on republicans on their stance not to hear any nominee. Reporter but republicans say Vice President biden saw things their way 24 years ago when he chaired the Senate Judiciary committee and said no confirmations during a president ial campaign. Action on a Supreme Court nomination must be put off until after the Election Campaign is over. Reporter words that Senate Republicans are now gleefully recalling. What were doing is what the democrats top leadership has advocated in the pa. St reporter but it was actually the rank republican on Senate Judiciary 24 years ago who said confirmations should go on during a campaign. It is this process, if process which should not be changed for Election Year expediency which has signified the majority of our system of government. Reporter president now says hell have a nominee, quote, in the weeks ahead. Mr. President , how many names . Reporter Pete Williams, nbc news, washington. A dramatic day in the civil lawsuit brought by Sports Reporter erin andrews. In court andrews her father testified about her trauma after a man secretly filmed her at a hotel. Andrews is suing her stalker and the hotels owner and former Management Company claiming they let it happen. Nbcs Morgan Radford has details. Reporter an emotional day for erin andrews, wiping away tears while her father describes her as a shell of the person she once was. Shes terrified. Shes depressed. Shes not the girl that we used to know. Reporter steve andrews, a veteran reporter, testifying on behalf of his daughter and her 75 million suit against the man convicted of stalking and secretly filming her naked in her Nashville Hotel room in 2008. She kept screaming im on the internet. Im on the internet. Im naked. Everything ive worked for is done. Lawyer says Michael Barrett removed and altered the peep hole of Andrews Hotel room and held up a cell naked. He wanted a room right next to her. I remember thinking to myself how does this happen. Reporter andrews attorney called a hospitality expert to the stand. Thats the cardinal sin in the Hospitality Industry is to give somebodys room number away or let them know that they are staying there. Reporter hotels lawyer blames only the stalker. He deceived, he connived, he stalked. Thats what mr. Barrett did. Reporter mr. Andrews believes someone needs to pay for what happened to his daughter. First time in my life as her sorry, as her father where i didnt know if she was safe or not. I fathered for her life. Reporter Morgan Radford, nbc news. Still ahead here tonight, milania trumps first solo interview about the campaign, opening up about her marriage to donald trump, whether she ever thinks hes crossed the line and what happens on those occasions when they disagree. Also caught on camera, ecigarette batteries blowing up in a mans pocket. What if one situp could prevent Heart Disease . One. Wishful thinking, right . 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We have a thick skin and we know that people will judge him and people will call names and they dont give him enough credit. Reporter the former supermodel is trumps third wife, born in slovenia. Im my own person. Hes his own person, and i think thats very important. I dont want to change him. He doesnt want to change me. Reporter what about many felt he had insulted mexicans . No. I dont feel he insulted the mexicans. He said illegal immigrants. He didnt talk about everybody. Reporter but youre an immigrant . Yes. Reporter do you nkes gone too far . I followed the law. I followed the law the way its supposed to be. I never thought to stay here without papers. Reporter when he muslims, do you worry about it . What he said it will be temporary and its not for all the muslims. Its the ones we need to screen them, who is coming to the country. He wants to protect america. Reporter milania speaks several languages but what about some of the language her husband uses. Do i agree all the time with him . No, i dont, and i tell him that. I tell him my opinion. I tell him what i think. Sometimes he listens. Sometimes he dont. Reporter even if not only visible to the public, milania trump is clearly a key sounding board for the republican from unir. News. Were back in a moment with a warning about a potential risk in the water for children and pregnant women and yet another with my moderate to severe ulcerative colitis, the possibility of a flare was almost always on my mind. Thinking about what to avoid, where to go. And how to deal with my uc. Until i talked to my doctor. She told me that humira helps people like me get uc under control and keep it under control when certain medications havent worked well enough. Humira can lower your ability to fight infections, including tuberculosis. 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An urgent warning has been issued over lead found in water at several homes in jackson, mississippi. While the city claims its water has not been Young Children are being urged to drink bottled or filtered water. State Health Officials say they believe the lead is from home plumbing corrosion, not the water source. In kentucky, a sudden and shocking explosion caught on tape. Its a man taken by complete surprise when his pants pockets burst into flames. An ecigarette wasbattery is blamed for the blast and as nbcs joe fryar tells us its hardly the first time Something Like that has happened. Watch. Reporter a customer was simply stopping for snacks at a kentucky gas st