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 violent and deadly 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. When i went to see where the house was, there was nothing there. Reporter in waverly, virginia, theres as much heartbreak as destruction. An ef1 tornado with winds up to 110 miles an hour. Carving a path. In North Carolina, huntsboro road is obliterated. The tornado peeled the roof and walls off pams house. Today she and her husband, rick, went back to salvage what they could. Theres nothing really to get. Its all gone. Its all gone. Reporter 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 some 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. Now 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 last shot for ted cruz and marco rubio to do something, anything, to knock donald trump off his march to the nomination. Meantime, the Clinton Campaign is strategizing not only been democratic 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. Where 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 the 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 pay for that [ 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. Barnum. The times for the clowns and acrobats and dancing bears as hassed. Tore tonights debate to matter on tuesday, one of two things must happen. 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 a lot of prejudice and paranoia. Reporter her campaign, girding for a potential general election matchup, sending out a fundraising email saying everything is coming up trump. The man who said he once wanted to make America Great again. I dont think america ever stopped being great. We need to make america whole again. Reporter Campaign Sources telling nbc news theyre working on challenges to 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, super predators, saying, quote, 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 who 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 from those paid speeches she gave to wall street, arguing the stone walling only fuels speculation. It could be a cloud that hangs over her campaign whether shes taking on senator sanders or the gop nominee. Lester. Kristen, thank you. Lets bring in our political director, the moderator of meet the press, chuck todd. Chuck, lets break down the scenarios here. Youve been doing the math. How might this play out for trump and his rivals . Well, lets start with our best estimate of what the delegate counts going to look like after super tuesday. Its over here on the board that i got 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 100delegate lead, start a 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, he would win all the delegates in ohio by beating kasich, all the delegates in florida by beating rubio. He would get to 650 delegates, basically halfway to the magic number of 1237, and hed 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 math changes. We did the math here. What does this mean, lester, as the bottom line . Theres two scenarios now left in the republican nomination race. Donald trump wins this nomination by march 15th, or were headed to cleveland and 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. These are the new iphones. Reporter when it released the iphone 6 as Edward Snowden was warning about government surveillance, apple made a point about 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 insiders say the company is trying to make its phones even more secure, working to develop an iphone that cannot be unlocked by anyone about the user. Not by the police, not even by apple itself. And 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 but apple says the fbi is trying to force it to create a brand new version of the iphone by changing the software, and it says the government cannot do that. You cannot ask a private citizen to create a product for it, and it cannot ask apple to change the iphone in ways that it 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 tromted star sports anchor erin andrews to leave the courtroom as jurors saw for the first time the tape 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 roomful of 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. Once its on the internet, its on the internet. Many people have individual copies out there. Reporter Michael David barrett altered the peep hole of andrews door and filmed her getting dressed in 2008. The former insurance executive admitted to following her across three different hotels. Caught in 2009, he offered a tearful apology as he was sentenced to 2 1 2 years in jail. His apology isnt good enough. It doesnt take down the video off the internet. Ive cried enough, and 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 that this would reinvigorate the story on the internet. Reporter andrews is expected to take the stand next week. Hearing new testify 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 familiarsounding 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. And as Stephanie Gosk reports, there are questions about why they werent warned sooner. Reporter the lead warning rattled the people of jackson. Many like mother of three monica cable, worried their city is another flint. Just to hear that water has gone wrong in another city, another state, and now my own city and state, its something that 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 months. 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 homes sampled had high lead levels. Six months later, 10 of the homes tested high. That was when the state alerted city leaders, who told the public but didnt warn pregnant women and children not to drink the water until wednesday, nearly eight months after the first high reading. State Officials Say they were following epa guidelines. Weve done exactly what the federal you looked at those requirements and your evaluation is theyre actually not sufficient. Theyre not sufficient, and weve made the change so they will be more sufficient. Reporter it wont be an easy fix for jackson. The mayor says the planlts need urgent upgrades and theres a lot of lead in the aging water system. A problem facing nearly every city. This is going to become a national issue. Reporter at this childrens clinic, worried parents have been calling all day. Its better to be safe than sorry, 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. Were following some breaking news here this evening. Lets go to nbcs joe fryer. Reporter good evening, lester. Police are on the scene of a deadly workplace shooting in kansas. The sheriff says the gunman has been killed by law enforcement, but at this point, as many as three to four others are dead and up to 20 could be injured. It happened at excel industries in hesston kansas, which is about 35 miles from wichita. Authorities say there are four or five different crime scenes. Witnesses describe a chaotic situation. I hear a pop, pop, and im thinking some paint cans or something going up. And more people running and all of a sudden, pop, pop, pop. I started to run too. Reporter the sheriff confirmed the gunman was an employee, but at this point his motive is unclear. Lester. 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. If you have schoolage children, maybe youve dealt with it or you likely know a family who has. Lice. The cdc reports that up to 12 million children a year will get lice. Tonight, an important warning you need to hear. Research now shows an outbreak of socalled super lice. Much more resistant to treatment in 25 states so far. Our rehema ellis explains how to stop it. Is that the same one . Reporter 11yearold lila is getting checked for lice tonight. Heres another one right here. Reporter sure enough, theyre back again. Her mother, andrea, says this is the fourth time in a year for her family. I said is your head itching . She said not really. She was itching her head. It wasnt like she was itching her head. Reporter shes not alone. Scientists have recently identified super lice, resistant to the main chemical in overthecounter treatments. The socalled super lice have now spread to 25 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. Theres also a lice clinic like hair genie. Absolutely. Theres nothing to be ashamed of. We tell these kids its not your fault. Somebody gave it to you. Reporter lila is learning how to stop it from spreading. They have a spray, and i use their spray before i go to school. Reporter what do you and your girlfriends do . Do you share hats, hair brushes . No. I guess my hair brush, and since were on our phones a lot, we have to make sure like our heads arent together. Reporter families trying to stay super vigilant against super lice. Rehema ellis, nbc news, norwalk, connecticut. Were back in a moment with a big but rather unexpected name who has a role to play this weekend at the oscars. The Supreme Court buzz around nevada governor brian sand vault is over before the trial balloon even got off the ground after word yesterday that the white house was vetting the republican for the court vacancy, he said today, no thanks, telling the white house he does not wish to be considered for the job. A surprise announcement ahead of the oscars. Vice President Joe Biden will appear at the ceremony to spotlight the issue of Campus Sexual Assault. And the efforts hes leading to fight it. Biden will introduce lady gagas performance of the song until it happens to you, which was featured in the Campus Sexual Assault documentary the hunting ground. A little boy who touched so many on social media just got the thing he most desired. He wanted the jersey worn by soccer star lionel messi, but it proved impossible for his family in afghanistan to get. So his brother made him one with a plastic bag and a 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. Store. Raj vo agents raid g what theye hting for d what theyve already confiscated. Jess vo and, pet lovers confront an accused cat killer. Gasps and tears. That drew next close next. Finally tonight, come super tuesday, the biggest prize on the map will be texas, and we wanted to know what will decide this crucial race for voters there. 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 an tone yore. Here in karnes city, people say 95 of the job 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 left somebody go, it weighs on you after a while. Reporter zach riser is 27 with a family, a more dpaj, and no job. It will break you down as a man. I have a 7monthold little girl 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 for losing a job but for every american out here that someone is coming across the border taking their job. Reporter stanley has also been laid off. You think we should build a wall . You wouldnt want me to tell you what kind of wall id do. Reporter tab that rejects the closed border idea. Opening ourselves up to that can only help us grow. Reporter but 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. Reporter for the moment, there is no sign of the wind changing direction. Kevin tibbles, nbc news, karnes city, texas. And 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 good night. Personal information doe runs04 raj v right now at 6. Unlockinthe iphon not just from the San Bernardino id make it for peoples personal information doesnt go away. Right now at 6 00, unlocking the iphone. Not just from the San Bernardino massacre but other cases as well. Apple gearing up for a legal showdown. Good evening. Thanks for being with us. Im raj mathai. And jessica agiurre. Against its Constitutional Rights the fight between apple and the fbi heating up. A business and tech reporter scott budman has more on the legal maneuvering. Scott. Reporter good evening, jessica. Lots of news and lots of rumors today. Starting with the rumor that apple wants to build a new iphone that would keep everybody out. And while people were digesting that, the company itself filed new paperwork that brought the two sides even further apart. From protests outside apple stores to big sales inside apple stores, the iphone is still in the spotlight with the newest rue more that apple wants to build a new version that nobody can ever break into. As we move to the digital age, these are the kind of raw issues that we to deal with. Reporter no comment from apple about the phone plan. But the tech giant did file a motion to vacate the order that it helped the fbi tap into the phone of the San Bernardino shooter. If they lose this, then you could argue the government would always want a back dooro