Janet jacksons huge news becoming a firsttime mom at 50. What shes revealing about her new son, as rhythm nation celebrates this morning. Cant go wrong listening to a little janet jackson. Oh, a lot for her and her husband to celebrate this morning. Welcome baby boy eissa. Her rep says everyone is doing well. Such great news. A lot more on that coming up. A big day in congress. Everyone got sworn in. Check out this moment. Roger marshall getting sworn in. His son in the middle, jostling. Well, hes dabbing, jostling with Speaker Paul Ryan. Well tell you what happened coming up. First the breaking news. The trail derailment in brooklyn. A dozen people injured. Lets go to eva pilgrim on the scene right now. Reporter emergency respon r responders tend to the more than 70 people that are injured at this hour. All people just trying to get to work this morning. The train barrelled into the new york city station during the height of rush hour. It appeared to speed up when it should have been coming to a stop. Careening off the track and on to the platform. It was terrible. You could see people crying and screaming and then they said it started smoking. Reporter passengers inside the train thrown against windows and doors. Some winding up on the floor. Before you knew it, it was just the impact and people were like flying and some people that the last two like the last cars of the train dont platform so there were people walking forward while the train was in motion. And the impact came. My face went into the chair in front of me. My knees went in and you know, it was just very scary. Reporter Emergency Personnel racing to the scene to tend to the at least 70 wounded. My back is hurting. A lot of people i ride with, their backs, their legs. It was a real it was like unbelievable. Reporter several of those waiting for the train said they heard a loud boom. The times that we live in when you hear a boom and crash, you know, you automatically start theyring the worst like is someone attacking us . You dont know what to think. Reporter we have heard that the federal Railroad Administration is in route to this scene. Well hear later today george. Now to the trump transition. Inaugust inugg race 16 days away. As wikileaks founder denies his leaks came from russia. Brian ross is here with the story, good morning brian. Good morning george overnight donald trump claimed that the long awaited report on who hacked the Democratic Party had been delayed and will be delivered to him this friday. In his twitter post. Trump continued to cast doubt about the role of the russians. Perhaps more time needed to build a case, he wrote. Very strange. Now trump is being joined in his skepticism by the man who has been hiding out in the embassy in london for the last four years. Julian assange. The founder of wikileaks. Appearing on fox with sean hannity. We can say we have said repeatedly, over the last two months, that our source is not the russian government. And it is not state party. Reporter but the head of the cia says in effect, assange doesnt know what hes talking about. That it was the russians. This report is going to include what it is we know about what happened. What was collected. What was disclosed. And what the purpose and intent of that effort was. Reporter and Officials Say its equally clear that the embarrassing Democratic Party emails were delivered to wikileaks by a middleman for the russians, or what spies call a cutout. Theres no way assange would have any idea who was behind dropping the information off. The Russian Intelligence Services are clearly capable of hiding their tracks. Of using a cutout to provide this information to wikileaks. Reporter now the president elect finds himself strange bedfellows with russian president putin and wikileaks founder assange who deliver messages much like that of trumps transition team. Theyre trying to delegitimize the Trump Administration as it goes into the white house. Whether assange is a knowing participant or what the russians call a useful idiot, its hard to tell. But nonetheless, the russians were very much behind the hacking and dumping of this information. Reporter and officials tell abc news this morning, both president obama and the president elect will receive their copies of the report with a briefing on friday, george. There seems to be crossed wires. It appears the president elect and members of his team were under the impression the briefing was coming earlier in the week, probably yesterday. Reporter thats right. Intelligence Officials Say that there was never a plan to give it any time before friday. Friday was always the date. There was no delay. Theyre not sure what hes talking about, whether its a simple miscommunication or the growing distrust mr. Trump is fueling with twitter messages. President elect trump putting the pressure on Congress Going against members of his own party for trying to strip power from the congressional ethics office. House republicans quickly reversing course on tuesday. Our Congressional Correspondent mary bruce has more and joins us from washington. Good morning, mary. Reporter good morning, robin. Its a new republican era, here on capitol hill, nearly a decade in the making. This morning, republicans are trying to move on after their first day was overshadowed by stumbles and a clash with the president elect. This morning, donald trump showing he can get republicans to fall in line. Just a day after republicans voted to eliminate an independent ethics body, the measure was scrapped. Are you concerned about the message this is sending on the first day of the new congress . Well, i think a good message is being sent here. Which is, you know, Republican Leadership and membership alike said this is a problem. We need to change it. And we just did. Reporter republicans buckling under pressure from constituents, party leaders, and the president elect. Trump tweeting with all that congress has to work on, do they really have to make the weakening of the independent ethics watchdog, as unfair as it may be, their number one act and priority . Focus on tax reform, health care, and so many other things of far greater importance. Abc news learning trump called House Speaker paul ryan right after the ethics changes were ditched. Republicans trying to regroup. Taking the First Step Towards repealing obamacare. This is a onceinalifetime opportunity. This is the kind of thing that most of us only dreamed about. I know because i used to dream about this a lot. Reporter but the democrats, with their new leader in the senate who is friendly with trump, are vowing to keep republicans in check. It is not our job to be a rubber stamp. Its our job to do whats best for the american people, the middle class, and those struggling to get there. Reporter now, as the capital prepares for the inauguration, just 16 days away, we have learned that all of the former living president s, except george h. W. Bush, will be here for the big date. Even Hillary Clinton will be up on that stage putting her face to face with donald trump for the First Time Since the campaign and in front of an audience of millions. Robin . That will be quite a moment. Mary. And also that moment that george was alluding to earlier with paul ryan. A little bit of a lesson in dabbing . Yeah, thats the real debate up here this morning what is dabbing . House Speaker Paul Ryan was swearing in a new kansas representative. The whole family there posing for pictures when suddenly the congressmans son showed off the popular dance move. House Speaker Paul Ryan had no idea what was going on. He asked the boy if he needed to sneeze. The speaker later on twitter saying he had just sworn in nearly 300 new members but still has no idea what dabbing is this morning. In case youre wondering, the young man today is so grounded. The tweet just came out. The kid was being kind of a jerk. Yeah, he had it wrong. Isnt it two hands . I dont know. I mean and paul ryan was entirely clueless, which surprised me, because cam newton did this. Paul ryan is a big football fan. I dont know. Stand by. We want to move on to the president elect taking another victory lap after calling out ford for a plan to build a 1. 6 billion plant in mexico yesterday. The Company Called trump to say theyre scrapping the plan, adding hundreds of jobs in the u. S. Our Business CorrespondentRebecca Jarvis spoke to fords ceo about the decision. Good morning. Reporter the plant in mexico was a focus of Donald Trumps criticism on the campaign trail. Ford is now scrapping the plans, moving production of the new ford focus to a preexisting plant in mexico. Rather than adding 2,800 jobs in mexico, theyll create 700 jobs here in the u. S. For new electric and selfdriving cars. I asked fords ceo mark fields what role the president elect played in the decision. Did you feel pressure from president elect donald trump to make this decision . We look at a lot of different factors. One of the factors that were looking at is our view is that theres going to be more positive Business Environment for u. S. Manufacturing under president elect trump. His progrowth policies we think could be very beneficial. And this is a vote of confidence that we feel he can deliver on those things. Reporter and ahead of the announcement, fields says he shared the news in a phone call with president elect donald trump and Vice President elect mike pence. Fields tells me it was a positive conversation. Two instances with the congress on the ethics thing and the ford announcement where you see big institutions unwilling to cross him. No doubt. The thing with congress is very interesting. Donald trump is more popular in the districts of many of the republican congressmen than the congressmen themselves. He has the ability to really put some pressure on them. In this case, he was backing up Republican Leadership. Paul ryan and kevin mccarthy, the republican leaders, wanted this reversed. Donald trump was on their side. What happens the next time when hes against leadership . Hes got the power to move. The ford thing, 700 jobs in an economy that has to create 200,000 a month is not a big thing in a macro. Very powerful and once again, symbolic. The taunting of the Intelligence Community, at odds with Senate Republicans on whether russia was behind this. That comes to a head this week. Absolutely. This briefing. The Intelligence Community is irritated. Theyre irritated to see trump questioning them in public. Hes used intelligence in quotes. They say the briefing was scheduled for friday. But heres the question. What happens when trump is called into the situation room and has to make a decision on an act of war based on intelligence presented to him by the very people hes right now questioning . And hes certainly willing to pressure them. We see a big showdown coming. It will play out on capitol hill today. President obama going to speak to democrats about the obamacare repeal. Vice president elect pence going to speak to republicans. This is going to be the big battle over the next two months. This is the first big battle. The republican strategy is to say were going to repeal obamacare. Not all of it. Most of it. Then make it effective in about three years. So it will give them about three years time to figure out how to replace it. The first step is not immediate. It will be an immediate battle, immediate vote. But obamacare will not be repealed until toward the end of trumps term. The question is, what happens to the Health Insurance community in the intervening years . 16 days away from the inauguration. The acceptances are starting to come in. What a moment that will be to see trump there with the other former president s. President bush, president clinton, of course hillary up there. Hes not only getting sworn in as president. Hes getting welcomed into the most exclusive club of all. The club of president s. Thats a sign there to see the former president s there with him. Youre right. Lets talk about the weather now. The arctic blast moving in. Snow and ice shutting down an interstate in colorado. Whats going on . I70 in colorado. We have the pictures of all that traffic. Right around Loveland Pass this video is from. That was happening and weve got more storms on the way. We needed to warn you of this. Look whats happening in sacramento, california. Trees down. So much rain in the last couple of days. So much yet to come in the next week or so. We have winter storm warnings and advisories that stretch to illinois. The Winter Weather alerts, the wind chill warnings are for 40 to 45 below zero in parts of north and south dakota this morning. These are numbers for thursday morning. It will feel like 10 below in chicago, 2 below detroit. 9 for boston. The cold air sweeps to the east. With it it will squeeze some moisture out. Up to six inches in in bay area. Up to four feet of mountain snow. Theyre very happy with that. But look at this picture out of utah. Remember where this happened just a couple of days ago. This happened again. It happened again at the same resort. We have that young man dangling from the ski lift by his backpack. Fortunately they were able to get two people up there and get him off. Hes okay. Glad hes okay. Its great to have the snow. You have to be safe on the slopes. Thank you. We move overseas now for the latest on the deadly new years eve terrorist attack. Turkish officials are searching for the killer. Theres the suspect. They detained five more people overnight. Alex marquardt is on the scene, takes us inside the nightclub. Where the attack went down. Good morning alex. Reporter were inside the reina nightclub. Once so popular with tourists and turkeys elite. Now eerie and empty. You can see here little changed since the horrible night. The bar still piled high with bottles and glasses. Back there on the mirror happy new year is written. Instead this new year started in a way no one could ever have imagined. Bullet holes. Blood stains on the wall. The remnants of a celebration turned into a nightmare. This morning, we walked through the club. Unnervingly frozen in the moment of the massacre that took 39 lives. As the gunman made his way through the club, the guests were so desperate to flee that around 50 of them jumped here into the frigid waters to escape. And youre right there. Ali is the manager of reina. He showed us where he was that night at the entrance when the gunman stormed in. As bullets land around him, you can see him falling. The gunman ran past and shot the man next to him. Did you think you would survive . I survived, he tells me. But im not happy to be alive. The trauma clearly so fresh and painful. This morning, turkish Authorities Say they know the shooters name and have his fingerprints from the gun he left behind. Theyve tracked his movements and arrested dozens said to be connected to the attack, including the mans wife, who said she had no idea he was affiliated with isis. For now, the killer remains on the run. With the manhunt in its fourth day, the shooter could have gotten out of istanbul and could be anywhere in the country, even farther. Hes suspected of having fought with isis in syria. The fear is that he could slip back across that border into isisheld territory. George . Okay, alex, thank you very much. Now a protest over one of president elects nominees. We are getting our first look at protesters at the Alabama Office of jeff sessions. President elect trumps nominee for attorney general. The naacp led the sitin protest. The president of the Civil Rights Group was among six people taken into custody. People taken into custody. They want sessions to be removed from consideration. Theyve questioned his stance on voter and civil rights. A School Officer caught on video slamming a girl to the floor is now placed on administrative leave. Witnesses say the girl was trying to break up a fight involving her sister. The teens mother told reporters the girl suffered a concussion. The fda says it will investigate the danger of ecigarette batteries. After dozens of fires and explosions in recent weeks. Some victims suffered serious injuries. The fda began regulating ecigarettes for the first time last year. Its a tough day on the ice for a polar bear. Filming a commercial for a car dealership in minnesota. Take a look. The polar bear mascot was trying to pose for the camera there. Couldnt keep his balance. He fell over. And over. And over again. Just when you thought he would hold it all together, there he is. Well, down goes white bear mitsubishi. They posted the outtakes online. I thought a pun, i dont know. I thought it would be polarizing. Is that unbearable . Sorry. No, no. Are there more . Do you have more . No mas. Its impawsible. Oh, another one in there. Youre masterful. We love you, everybody in the southeast. You dont do great with snow. Everybody is talking about this. Thursday through saturday the timing. As the cold air comes in. A couple of lows slide across. Theres a potential for a wintry mix or snow. Watch your local abc stations for the latest on that. Your local weather in 30 seconds. First the wind chill forecast brought to you by burlington. Coming up, the brandnew interview from one of the biggest crimes of the century. Lyle menendez. Speaking out for the first time in 20 years about the murder of his parents in Beverly Hills only here on gma. New concerns about fumes on planes after seven American Airlines flight attendants were sent to the hospital. Well have more on that coming up in our big board. Have more on that coming up in our big board. [microwave beeps] [heart monitor