Seven new breeds competing at the Westminster Dog Show tonight, and well take you right there. Good evening. And its great to have you with us here on a monday night. And its a good thing for millions of americans this was a day off from work, because at this hour, a dangerous mix of snow and freezing rain is making driving treacherous. A storm 1,200 miles long, from the south, all the way up to the northeast. A pileup in pennsylvania on i78. Fedex trucks and cars manageled outside lebanon. 17 states under Winter Weather alerts at this hour. Semitruck jackknifed outside raleigh, north carolina. More than 2,000 accidents today alone. And there are several reports of tornadoes at this hour. This image of a funnel cloud in mississippi. There is also a bug change coming after this storm, and we begin with abcs linsey davis tonight live in new york. Linsey, good evening. Reporter good evening, davi happened in the last five minutes. Those that did venture out on the roads are making their way home slowly tonight. The roads are already icy, and only expected to get worse in the next few hours. The wintry mix, not just messy, but downright dangerous, as drivers struggle to get traction on the icy roads. Across north carolina, snow and ice to blame for more than 1,500 Car Accidents in less than 16 hours. 500 accidents in virginia. At least one person killed. Police asking drivers to stay off the roads. Further south, multiple reports of tornado touchdowns. In mississippi, this house, destroyed. This high school campus, damaged. In louisiana, winds ripping apart this car wash and pizza hut and sent debris flying. I seen it, like, coming at me. Woo, its scary. Reporter the 1,200mile long winter storm is also wreaking havoc at airports. Abcs mary bruce is in charlotte. Here more than 100 flights cab selled, more than 1,000 across the country and growing. Reporter this new storm moves in after a weekend that saw cold records shattered from new york to boston. A harrowing rescue scene in New Hampshire sunday. 48 people trapped in two tram cars in subzero temperatures, some for nearly three hours. Among them, an 8monthold. And there were massive weekend pileups. More than 60 vehicles on both i65 in indiana when the weather starts changing, people need to reduce their speed, and they just didnt do that today. Reporter and i78 in pennsylvania, where three were killed. Here in new york city, its been snowing much of the afternoon, and its so cold, everything is sticking. And this is only expected to change over to ice. David . Yeah, very dangerous mix tonight. Linsey, thank you. Lets get to rob marciano. And there are still tornadoes popping up at this hour. Reporter yes, david. We have a storm in alabama, and these storms will roll east into the pink areas, charlotte to richmond to philadelphia, that is ice. The icy mix north of new york overnight. By tomorrow morning, well above freezing, but in buffalo and cleveland, could see a foot of snow. In same areas in the snow and ice tomorrow night could see thunderstorms. A remarkable warmup in temperatures. A 30 degree swing from yesterday mornings recordbreaking cold, 57 degrees tomorrow afternoon. Run unbelievable. Rob, thank you. We turn now to the race for 2016, and donald trump late today, up leashing on his opponents. On ted cruz, calling him a liar, quote, unstable, a basket case. And trump continued to take aim at jeb bush and now his brother, the former president. George w. Bush. E and former First Lady Laura Bush joining jeb bush on the trail just moments ago there. Tonight, what trump is now saying about 9 11, and the former president , and also threatening to run as an independent again. Abcs tom llamas in charleston tonight. Reporter tonight, in South Carolina, its big brother to the re thank you for your hard work for jeb. Thank you for what youre going to do, which is to vote for him on saturday. Reporter former president george w. Bush, right there, posing for pictures, signing autographs. His wife, laura, beside him. A jeb sticker on his lapel. But lying in wait donald trump. His brother is coming into town, which is, of course, lovely. Ever ask yourself why his brother went silent for all these years . No, dont ask yourself that. Reporter trump and the bushes locked in a southern brawl that spilled onto the debate stage. While donald trump was building a reality tv show, my brother was building a Security Apparatus to keep us safe. And im proud of what he did. Hes had the gal the World Trade Center came down during your brothers reign. Remember that. Reporter trump ignoring the boos from the crowd, going even further. They lied. They said there were weapons of mass destruction, there were none. And they knew there were none. Destruction. Reporter today, the billionaire amplifying his attacks on the former president. I heard for years he kept the country safe after 9 11. What does that mean, after . What about during 9 11 . I was there. I lost a lot of friends that were killed in that building. The worst attack ever in this country. It was during his presidency. Reporter though trump has mocked jeb bush for bringing his mother to campaign in New Hampshire, hes also accused him of running from the bush name. I asked him about that today. You attacked jeb bush for coming out with the jeb logo and yet no bush on the campaign logo. Im not the first. I said from the beginning. I said from the beginning, tom reporter what does that tell you about jeb . I think the name bush would have been better than an exclamation point. Hes jeb bush. I think he should have used his name. I think it shows that he wasnt proud of the family. Reporter but jeb bush not trumps only target today. His feud with senator ted cruise now exploding. Trump even questioning cruzs faith, calling him, quote, unstable. Youre willing to lie about anything and then you hold a bible. Its no good. Ive never seen anybody that lied as much as ted cruz. And he goes around saying hes a christian. Reporter is senator ted cruz really the dirtiest politician youve ever come across . Not the dirtiest. Hes the biggest liar. Reporter cruz today says trump is cracking under pressure. Its not a response, simply to start yelling louder and louder, liar, liar, liar, whenever anybody points to the candidates own record. Trutmatters. And were not in grade school where you just get to say liar, liar, pants on fire and not respond to the subject. And tom llamas live from charleston, South Carolina, tonight. Tom, trump threatening to sue ted cruz himself, saying hes hired a lawyer tonight, but also, taking aim at the rnc, trump bringing up the notion of running as an independent again . Reporter thats right, david. This goes back to this week that debate. He claims the rnc is stacking the deck against him, putting people in the audience who are against his campaign. Tonight, the rnc saying every candidate got an equal number of tickets, and there were only ten donors in the audience. And just behind me, david, george w. Bush making the case for his brother and taking jabs at donald trump tonight. The former president behind you, tom, thank you. Meantime, this evening, on the democratic side, nevada is next. Tonight, new signs Hillary Clinton is feeling the bern in nevada. Could senator sanders be closing the gap . Meanwhile, former president bill clinton facing tough questions about his relationship over the years with mr. Trump. Abcs cecilia vega is in florida tonight, one op one with bill clint top, and how he answered those questions about trump. I need your help on saturday. Reporter tonight, Hillary Clinton in nevada im hoping to get your support in the caucus on saturday. Reporter bracing for yet another embarrassment in a state she cant afford to lose. Hillary clinton was be here in florida today. Instead, she stayed in nevada. This is who showed up in her place. We keep rewarding people who tell us things they know they cant do, because it pushes our hot buttons. Reporter bill clinton going after Bernie Sanders and coming under fire himself from this trump supporter. You liked his money. You took his money. I certainly did. Reporter the former president , firing right back. I took his money for my foundation, where i used it to better than hes using it now, i guarantee that. Reporter later, i asked clinton an nevada. You seem like you are nervous in nevada right now. Should you be . Its a caucus. Any time you have to caucus, its more unpredictable. Reporter sanders feeling so confident, hes leapfrogged ahead to michigan, where he was met with huge lines and nearly 10,000 supporters, all feeling the bern. And cecilia vega with us live. You were telling ushe campaign signaling it is closer than theyd like in nevada. What are they seeing in South Carolina . Reporter well, they see a much more positive outlook there, and they are banking on support from africanamerican voters. And Hillary Clinton seems to be starting that push early, meeting with community leaders, including al sharpton in new york city. Cecilia, thank you. Now to the other battle brewing tonight over the Supreme Court, after the sudden death of justice scalia. The hearse carrying his casket arriving in virginia, amid a fierce debate over who will replace him, and who will choose his replacement. Republicans vowing to block anyone president obama nominates. Abcs chief White House CorrespondentJonathan Karl tonight, with who the president might nominate, and if they have any chance of getting confirmed. Reporter the flag is at half staff today at a snowy and peaceful Supreme Court, but the epic political battle is just beginning. 79yearold scalia had been on a weekend quail hunting trip at this ranch in texas, when he was he was totally peaceful. Hes a man who went to sleep and just didnt wake up. Reporter even before scalias family in Court Announced his death, senator ted cruz fired off this tweet. Justice scalia was an american hero. We owe it to him and the nation for the senate to ensure that the next president names his replacement. Within an hour, Senate Majority leader Mitch Mcconnell drew the battle lines, declaring, this vacancy should not be filled until we have a new president. Then, president obama weighed in, paying tribute to scalia, but making it clear, hes ready to fight to replace him. I plan to fulfill my Constitutional Responsibilities to nominate a successor, in due time. Reporter the drama jolted the campaign. The republican candidates taking the debate stage just minutes after the president spoke. I do not believe the president should appoint someone. Its called delay, delay, delay. Reporter now, republicans suggest they may not even hold a hearing on president and today, Hillary Clinton signaled shes ready to make that a campaign issue. Im hoping that well get somebody nominated that everybody will say, hey, the only reason to block this is pure partisanship. And so, do your duty. Reporter the list of possible nominees including her rick garland, a moderate who has won praise from republicans. Circuit court judge jane kelly, well liked by fellow iowan. And sri srinivasan, confirmed 970 just three years ago. And jon karl with us from the white house. Jon, is there precedent here . When was the last time the president nominated a Supreme Court candidate in the last year of his term and got that nominee approved . Reporter well, Election YearSupreme Court vacancies are extremely rare. The last president to nominate and confirm a justice was and there was a big difference, david, back then, the democrats, fdrs party, controlled the senate. All right, jon karl with us tonight. Jon, thank you. And as jon pointed out there with Justice Scalias absence, just eight justices remain. Look at the makeup of the Supreme Court with scalia. Five conservative justices, four liberal justices. In some cases, the court splitting 54. Now, an evenly split court now. And so, abcs terry moran tonight, who has covered the Supreme Court for years, on scalias legacy, in life and in law, and his unlikely friendship with one of the most liberal justices on the court, Ruth Bader Ginsburg and her words tonight. Reporter to friends, Justice Antonin Scalia was first a family man, a happy family man, as he noted when he was sworn in back in 1986. Maureen, who is an extraordinary woman and without whom i wouldnt be here or if i were here, it wouldnt have been as much fun along the way. Reporter they raised nine children together, five boys, ur grandkids call along. On the court, scalias loss is incalculable. In some of the biggest cases on the docket, the justices are now likely deadlocked, 44, and that means no ruling. So, Lower Court Decisions remain standing, likely handing huge victories to public unions, representing teachers and other government workers. They now will likely get to keep millions of dollars in mandatory fees from workers that were being challenged. And on voting rights, a republican effort to change how electoral districts are drawn, now expected to fail without scalia. Beyond the cases, there is the personal loss for justices. Especially Ruth Bader Ginsburg, their friendship so evident when they were together. We do also have a different style. I say people might regard my opinions as rather dull, boring. Yours are really jazzy sometimes. Jazzy. Reporter in a heartfelt statement, justicein captivating brilliance and wit, with a rare talent to make even the most sober judge laugh. And terry moran with us live tonight, and terry, if we dont have a new justice until the next president takes office, that would be about a year or more, has this happened before, and what does the court do in the meantime . Reporter now e, it has happened, david. Back in the 1950s, Justice Jackson died, and the court basically kept on with its work. They do have the option of what you might call a doover. They can rehear a case, but basically, the bottom line here is, its not a great situation, but the court, on most cases, doesnt need to decide the issue tomorrow. David . Terry moran with us tonight from the court. Terry, thank you. Overseas tonight, and to syria, and just days after the u. S. And russia announced a deal that would pause fighting there, tonight, a search for survivors after deadly air strikes. Hospitals and a school reduced to rubble. Maternity wards, children in the cross hairs, and by one estimate, at least 50 people doctors without borders, which supports the bombed hospital, blaming the air strikes on syria and russia. There is still much more ahead on world news tonight this monday. The scare in the air just minutes after takeoff. The plane with 252 passengers onboard, forced to turn around. The emergency in the cockpit. The flight headed to new york. There is news tonight about super bowl Champ Peyton Manning, disturbing allegations about the football legend before he turned pro. And were going to take you behind the scenes tonight. The Westminster Dog Show. Hard to believe its back already. Well, the new breeds competing for top dog. Youll see them first right here tonight. You pick the winner. On my longterm control medicine, i talked to my doctor and found a missing piece in my asthma treatment. Oncedaily breo prevents asthma symptoms. 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Reporter the pilot, described as unwell, was taken to the hospital as a precaution. I think its just really scary, whether it was by accident or on purpose. Reporter british pilots call the incident an attack, which are increasing at an alarming, rate. More incidents here, too,