Nightmare. Nightly news begins right now. Announcer this is nbc nightly news with lester holt. Good evening. States of emergency are in effect in virginia, and North Carolina right now. Among the places that took devastating blows from a deadly and Violent Storm that rampaged from the south up the eastern seaboard. Today were seeing the full extent of the damage from some 50 reported tornadoes over the last two days. Nine people were killed. And millions were impacted from downed trees and power outages, to floods and canceled flights. Tonight the region is still trying to recover. Nbcs Miguel Almaguer reports. Reporter tonight this is what the damage looked like in seven states. Homes have been shredded, lives are in shambles, after more than 50 reported tornadoes. I went to see where the house was, it wasnt there. Reporter in waverly, virginia, theres as much heart the f1 tornado with winds up to 110 miles an hour carving a path nine miles long and 300 yards wide. This foundation, all thats left in the bullseye. The bodies of two adults and a toddler discovered 300 yards away from the living room where they were trying to ride out the storm. It could be your loved one. The feeling is unbearable. Reporter toya jones lost her 2yearold cousin ian, as well as her uncle larry and friend devine. My uncle was the best. He was funny. Reporter in all, at least nine are dead across the region. No clue where even the building is. Reporter in North Carolina, huntsboro road is on obliterated. The tornado peeled the roof and walls off pam wests house. She and her husband, rick, went back to salvage what they could. Theres nothing really to get. Its all gone. Its all gone. Reporter overnight, powerful winds flipped a semi in new yo on nearby long island, falling trees tore down electrical wires sparking fires. And this morning, the dramatic rescue after a Coast Guard Boat helping a stranded fishing vessel capsized. The fishermen had to be air lifted to safety. An ef2 tornado in pennsylvania crushed more than 50 homes. Parts of Amish Country leveled. In a community that uses no electricity, its the power of neighbor helping neighbor. What took minutes to destroy will now take months to rebuild. This threeday storm system plowed a path across 70 Million People showing very little mercy. On one block alone, the damage can easily be in the millions. And while the storm moved through this community in a matter of minutes, it will take months to rebuild. Lester . Miguel almaguer tonight, thank you. A critical night in the race for president. The final gop debate before super tuesday, when voters in a dozen states go to the polls. And it could be the [000 03 58;00] for ted cruz and marco rubio to do something, anything, to knock donald trump off his march to the nomination. Meantime, the Clinton Campaign strategizing not only about democratic opponent Bernie Sanders, but also looking ahead to a potential matchup with trump in the fall. We have it all covered starting with nbcs Hallie Jackson in houston. Hallie . Reporter good evening, lester. Right now, donald trump appears to be leading in all of those super tuesday states, except for one texas. Were here tonight. Hell again be at center stage, and at the center of the bullseye. In texas, where everythings bigger, so are the stakes at tonights debate. The last stand before super tuesday for Donald Trumps rivals to stop him. Hes facing fire today, not from his competitors in houston, but across the border. Were going to build a wall, and whos going to pay for that wall . Reporter now in a war of words, colorful ones with mexicos former president. Im not going to [ bleep ] wall. He should pay for it. Hes got the money. Reporter trump now demanding vicente fox apologize as he gets ready for a different battle with ted cruz and marco rubio in texas. But its the Sunshine State where trump looks hot. Topping 40 there in the first poll since jeb bush dropped out. Marco rubio trailing by 16. Feeling the heat on his home turf. Rubios aides tell nbc news watch for him to hit trump for his positions on israel and health care tonight, as rubios top strategist guarantees a victory in florida. Tweeting, take it to the bank. Rubio needs to win there, like ted cruz needs to in texas. New numbers show cruz still in command in his home state for now. Trump and rubio jockeying for second place. A cruz aide tells nbc the candidate is preparing responses to accusations hell probably face about dirty tricks or lies. And ready to engage both rubio and trump. We cant be fooled by p. T. The time for the clowns and the acrobats and the dancing bears has passed. For tonights debate to matter on tuesday, one of two things must have. Donald trump must have his worst debate so far, or ted cruz or marco rubio must be able to land a solid punch on trump. Reporter setting up a wild night in the wild west. Hallie jackson, nbc news, houston. Reporter im Kristen Welker in myrtle beach, where Hillary Clinton is setting her sights on donald trump. Its been most surprising to me to see somebody who was affable. Really traffic in the prejudices and paranoia. Reporter her campaign girding for a potential general election matchup, sending out a fundraising email titled, everythings coming up trump. Her top surrogate taking constant aim. He wants to make America Great again. I dont think america ever stopped being great. We need to make america whole again. Where were all a part of it. Reporter Campaign Sources telling nbc news [000 06 58;00] trumps divisive and Unconventional Campaign if clinton should win the nomination, with a strategy that might also be unconventional. The most recent National Polling gives clinton a decisive victory over trump, 50 to 40 . But clinton has a more immediate battle taking on Bernie Sanders in south carolina, where a black lives matter activist confronted clinton last night for seeming to disparage black youth while talking about the drug problem as first lady, describing, quote, predators saying, we need to bring them to heel. Tonight in a statement, clinton saying, looking back, i shouldnt have used those words. Still, the moment underscores her challenge connecting with some young voters. Every person in this room is enormously powerful. Reporter they continue to flock to senator Bernie Sanders, again today in ohio, and in flint, michigan. A New York Times editorial out tonight calls on clinton to release the transcripts f paid speeches she gave to wall street, arguing the stonewalling only fuels speculation. It could be a cloud that hangs over her campaign whether shes taking on senator sanders or the gop nominee. Lugd ib . Fbsz lester . Kristen, thank you. Lets bring in our political director, moderator of meet the press, chuck todd. Youve been doing the math, how might this play out for trump and his rivals . Lets start with our best estimate of what the delegate count is going to look like after super tuesday. Its over here on the board over here. Essentially if donald trump wins all of these super tuesday states with about 35 of the vote like he did in south carolina, he will build a little over a 100 delegate lead, starting the methodical march to the nomination. And then he has a chance to accelerate it, and essentially cinch the nomination two weeks later. How does he do it . If he wins all of these winner take all states, by beating kasich, all delegates in florida by beating rubio, he gets to 650 delegates. Basically halfway to th number of 1,237, and he would be well on his way. However, if john kasich can beat trump in ohio and marco rubio can beat trump in florida, look at how the delegate map changes. We did the math here. What does this mean, lester, is the bottom line . Theres two scenarios left in the republican nomination race. Donald trump wins this nomination by march 15th, were headed to cleveland in a contested convention. There is no other scenario. All right. Chuck, thank you. High drama tonight in the battle between apple and the fbi. The company filed a motion today to throw out a judges order for it to help the fbi crack an iphone used by the San Bernardino killers. Saying the feds are seeking a dangerous power, all of it as apple insiders say the company is now working on a new version that would be impossible to unlock by anyone but the user. Our justice correspondent Pete Williams has details. Reporter apple has always made security a selling point. Reporter when it released the iphone 6, snowden was warning about government surveillance, apple made a point of saying it would no longer help police get information out of the new phones when they were locked, even when served with a search warrant. Now apple is trying to make the phones more secure, working to develop an iphone that cannot be unlocked by anyone but the user, not by the police, not even by apple itself. Its fighting the fbi which wants apple to modify the software in the phone to disarm the security and let agents try to unlock an iphone used by one of the San Bernardino attackers. The fbi director told Congress Today its a lead that must be pursued. We must do a competent investigation following the murder of 14 people in San Bernardino. And we will, and well use whatever lawful tools are available to us. Reporter apple said the fbi is trying to force it to create a brandnew version of the iphone by changing the software, and it says the government cannot do that. You cannot ask a private ti and it cannot ask apple to change the iphone in ways that was never intended to be used or to be employed in. Reporter apple today told a judge in San Bernardino that what the fbi wants would create a back door, leaving personal information vulnerable to hackers, identity thieves, hostile foreign agents and unwarranted government surveillance. Next week both apple and the fbi will face off in a hearing on capitol hill. They both say it should be up to congress, not the courts, to settle this fight. Pete williams, nbc news, at the supreme court. Chilling and uncomfortable moments in court today that prompted star sports anchor erin andrews to leave the courtroom, as jurors saw for the first time the pe at the center of her lawsuit against a hotel giant that captured her private moments in her hotel room, shot by a stalker in the room next door. We get more from nbcs morgan radford. Reporter today the video that she says changed her life was shown to a room strangers. Erin andrews stepped out as the jury sat in the dark watching those stolen images viewed almost 17 million times. So this is the first one at the national marriott, correct . Yes, this is one of the once its on the internet, its on the internet. Many people have individual copies out there. Reporter Michael Barrett altered the peephole of andrews door and filmed her getting dressed in 2008. The former insurance executive admitted to following her to three Different Hotels across the country. Caught in 2009, he offered a tearful apology, as he was sentenced to 2 1 2 years in jail, begging for forgiveness. His apology isnt good enough. It doesnt take down the video off the internet. Ive cried enough. Its not taking the video down. Reporter earlier today, andrews therapist testified by video, describing the panic andrews felt when her stalker got out of jail and she wasnt told. She was extremely concerned th reporter andrews is expected to take the stand next week. Hearing new testimony from the man she says left her hurt and humiliated. Morgan radford, nbc news. The people of jackson, mississippi, are facing a scary and unfortunately familiar sounding crisis over lead found in drinking water. Children and pregnant women have been warned not to drink the water in this city of more than 170,000 people, where 30 live below the poverty line. As Stephanie Gosk reports, there are questions about why they werent warned sooner. Reporter the lead warnings rattled the people of jackson. Many like the mother of three worry their city is another flint. Just to hear that water is gone wrong in another city, in another state, and now my own city and state. Its something i would have never thought of. Reporter officials downplay the comparisons, while at the same time warning pregnant women and children under 5 not to drink the tap water for six small children need lead testing, and everyone should avoid hot water and run the tap two minutes before using it. The problems began last june. 20 of home samples had high lead levels. Six months later, 10 of the homes tested high. That was when the state alerted city leaders. The public wasnt warned until wednesday. Nearly eight months after the first high readings. State Officials Say they were following epa guidelines. Weve done exactly what the federal requirements were for a long time. You look at the requirements and your evaluation is actually not sufficient. Theyre not sufficient. And weve made the change so that they will be more sufficient. Reporter it wont be an easy fix for jackson. The mayor said the plants need urgent upgrade. And there is a lot of lead in the aging water system. A problem facing nearly every city. Lead is all over the country. This is going to become a national issue. Reporter at this childrens clinic, worried parents have been calling all day. Better to be safe thanry especially with the children at stake. Reporter monica says her church sent bottled water to flint. But now she wonders if they should have kept it here. Stephanie gosk, nbc news, jackson, mississippi. Still ahead here tonight, the risk from socalled super lice. Its much more stubborn to get rid of and its already spreading in half the country. What to do if your kids come home with it. Also, a sports superstar just made a dream come true for a little boy who became a viral sensation. And i didnt get here alone. 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Scientists have recently identified super lice, resistant to the main chemical in overthecounter treatments. The socalled super lice have states. Its important not to panic. Lice are not a health hazard. They dont transmit disease. Reporter to kill these super lice, experts advise first try learning how to comb them out. Use overthecounter treatments repeatedly over several weeks. Ask your doctor for prescription treatments. Wash clothing and linens in hot water. Or theres also a lice clinic liar hair genie. Theres nothing to be ashamed of. We tell the kids, its not your fault. Somebody gave it to you. Reporter lyla is learning to stop it from spreading. They have a spray. I use their spray. Before i go to school. What do you and your girlfriends do . Do you share hats, hair brushes . No, i get my hair brush, and since were on the phone a lot, we have to make sure our heads arent together. Reporter families need to stay super vigilant against super lice. 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And the efforts hes leading to fight it. He will introduce lady gagas performance of the song until it happens to you featured in the Campus Sexual Assault documentary the hunting ground. A little boy who touched so many on social media got the thing he most desired. The 5yearold wanted the jersey worn by soccer star messi. But it proved impossible for his family in afghanistan to get. So b magic marker. The photos went viral and messi was so moved, he sent the boy not one, but two signed jerseys. When we come back, should a wall be built on the border . How the controversy is dividing voters who will decide the biggest contest yet in this campaign. Thousands of people came out today to run the race for retirement. So we asked them. Are you completely prepared for retirement . Okay, mostly prepared . Could you save 1 more of your income . It doesnt sound like much, but saving an additional 1 now, could make a big difference over time. Im going to be even better about saving. 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So we asked our Kevin Tibbles to find out in one small texas town in our series we the people. Reporter its a bitter wind that blows through the oil fields south of san antonio. Here in carne city, people say 95 of the jobs depend on the price of a barrel of the black stuff. And its dropped like a stone. Its horrible. Reporter chaz hicks manages a small oil service company. 50 of his business has vanished. He wants the economy back on track. We have to let somebody go. It weighs on you after a while. Frustrating. Reporter zack is 27 with a family, a mortgage and no job. It will break you down as a man. [000 27 59;00] that relies on me that didnt ask for this life. Reporter heres the kind of candidate hes looking for. Someone thats going to fight for us. Reporter with the southern border less than 200 miles away, the issue of jobs and immigration go hand in hand, over beers and brisket at the red dog ice house. Immigration has to do with the sovereignty of our nation, not just me, but every job. If somebodys coming across the border taking their job. Reporter stanley has also been laid off. I think we should build a wall. You dont want me to tell you what kind of wall i would build. Reporter this woman rejects the closed border idea. Theyre coming from a different background. Reporter in a place where opportunity has dried up, it is troubling for a young father. I dont know where im going to be or what im going to be doing, but im going to go to work. Ep the moment, there is no sign of the wind changing direction. Kevin tibbles, nbc news, carne city, texas. That will do it for us on a thursday night. Im lester holt reporting from our studios in los angeles. For all of us at nbc news, thank you for watching and i would also like to take this moment to publicly support ke ha. Though many have now come