Worried travelers. An abc news exclusive. I have lost my mind. The young doctor caught on camera violently confronting an uber driver speaking out for the first time, now suspended from the hospital facing threats online. What she really wants people to know about that night. Shes joining us live only on gma. And good morning, america. Busy wednesday morning. Robin on assign many. Great to have lara back. Michael is here. Amy, everybody is here. Never a dull moment,onald trump. No. Hes pulled out of tomorrows debate and see him unleashing on megyn kelly. Did it again last night taking the feud to a brandn level and his Campaign Manager will join us with the latest in a moment. A lot to talk about. First to the breaking news the weeks long standoff between government protesters and Law Enforcement turning deadly. The leader and several members of the group now under arrest. Abcs Neal Karlinsky hashe late in burns, oregon, good morning. Reporter good d rning. A dramatic and sudden turn of events here out here overnight with no warning. As a result all of the groupp leadership has been taken into custody with the except of one med rancher killed by Law Enforcement here overnight. This morning, a shootout between the armed occupiers of the federal wildlife refuge in rural oregon and Police Including the fbi has left one occupier dead and another wounded. Group leader ammon bundy and his brother were arrested in the shootout and could be seen handcuffed face down on the road. The armed militia seized control of this National Wildlife refuge in early january and they have occupied it ever since. Groups spokesman Lavoy Finicum was killed in the shootout the compound. He spoke with george earlier this month. We have no intent of pointing a gun at anybody. We must be clear, whos pointing guns at me and ammon, they have. Who said we will shoot you,e never have. They have. Reporter ranch supporters claim he was murdered in cold blood. His daughter is saying the father of 11 had his hands in the air when he was shot. They just unloaded on him and just shot him like a whole bunch of times and they killed him. Reporter as a local hospital in the nearby town of burns went on lockdown whi treating one suspect, authorities said at least eight were arrested including an online blogger who supported the group. Women and children need to get out of there right now. Reporter and John Ritzheimer famous about his online postings. Nobody here will firethe first shot. Reporter it was in its 24th but townspeople and oregons governor had expressed frustration, the occupation had been aowed to continue so long. The big queion no is what happens out at the wiwilife refuge. There are still people holed up in there but police have surrounded the area and set up roadblocks. Also a concern that Lavoy Finicum will be made a martyr. There was a lot of anger over his death at the hands of Law Enforcement. A lot of people writing in on the groups Facebook Page very, very angry. Police cononnue to surround the area. A dicey situation well continue to monitor. George and y. All right, neal carlin city, thank you. That surprise move from donald trump. Five days from the Iowa Caucuses heshaking up the race again. This time by pulling out of tomorrrrs final debate before the first votes. Were going to talk to his Campaign Manager in just a moment. First abcs tom llamas has all the latest from des moines, good morning, tom. Reporter george, good morning to you. Playing by his own rules, trump broke that news during a 30minute News Conference that was incredible to watch. He was absolutely livid. He went after fox news, megyn kelly, roger ailes anded cruz vowing to take them all on hes out. Donald trump says he will not participate in thursdays Republican Debate hosted by fox news. I wont be doing the debate. Im going to have Something Else in iowa. Well do something where we raise money for the veterans and the Wounded Warriors. Well do something simultaneously with the debate. Reporter trump furious at fox news, on tuesday he posted this message to social media, attacking megyn kelly, one of the debate moderators. Megyn kellys really biased against me. She knows that. I know that. Everybody knows that. Do you really think she can be fair at a debate . Reporter fox news responding with a press release mocking trump reading in part we learned from a secret back channel that the ayatollah and donald trump unfairly and trump has hisis own secret plan to replace the cabinet with his twitter followers. They cant toy with me like they toy with everybody else. So let them have their debate and lets see how they do with the ratings. Repter as for megyn kelly this this is a lightweight. Megyn kelly shouldnt be in the debate. Reporter the fox news anchor saying overnight her question to trump is the first debate about his treatment of women was fair game. I maintain it was a tough but fair question and we agreed to disagree. Reporter i asked trump if his rivals will now use this to their advantage. Do you think by skipping the debate theyll attack your temperament. No, i think my temperament is great. I buitt a great corporation. I built a Great Company but i think when foxends out their little like written by a child about putin, et cetera, et cetera, then i say let them have their debate. Reporter but overnight senator ted cruz insinuating if hes unwilling to stand on the debate stage with the other candides then i would like to invite donald right now to engagen a oneonone debate with me any time between nownd the Iowa Caucuses. Reporter now trump has a new fight brewing over his religion. Jeb bush questioning if trump is even a christian at all. Christian. No, i dont know what he is. Reporter and this morning ted cruz hammeringhat attack about donald trump skipping the debate. Hes actually launched a website called duckingdonald. Com where he attacks had imfor missing the debate. As for fox news they released a statement overnight that reads in part we cant give in to terrorizations towards any other of employees. Lets talk to his Campaign Manager. You heard it right there, cory. Mr. Trump is still welcome at the debate. Well, george, its great thanks for having me on. The short answer, i dont think so. Look, heres where we are, megyn kelly i totally obsessed with mr. Trump. Shes done multiple shows on why he shouldnt be even involved in the race on television. Shes c mpletely obsessed with him. Its impossible to have a fair and honest debatete you know hold on, donald trump is the best debater on tt stage. Hes participated in six debates. Hes won every single one by every poll. Hes not afraid to debate anybody. He does more television and radio interviews than all other candidates combined and answered your questions including yours multiple times. The issue is one of fairness. Let me press you on that, corey. Mocking a frontrunner, thats not appropriate to have someone like thatt on the debate stage. Thats a separate issue from megyn kelly because, you know, you say that megyn kelly appears to be obsessed with donald trump. Right now it appears that he seems to be obsessewith her. Jut put out a tweet saying i because that would not be politically coect. Instead i will only call her a lightweight reporter. Why not g up on the stage and take the question. Look, hes not afraid to take the question. Been on six debatee stages a won every single one and every poll said that and ansrs every question from every reporter including yours. Hes hpy to sit dunn and do interviews and answer the questions that the American People wan to hear about. What fox wants to do is they want to have 24 Million People tune in to watch donald trump so that their anchors can have the story about them. This is what happened in the first fox debate. No one was talking about the answers that the candidates gave, they were all talking about the moderators questions, the exact same thing that happehed with cnbc and the rnc removed them from future debates if thats what youre worried about how about ted cruzs challenge, a oneonone debate with donald trump before the Iowa Caucuses . Look, ted cruz, if hes the down to a twoperson race donald trump will be happy to debate him. Ted cruz talked about how gait his campaign is and has the greatest ground game in the history of iowa. What we see is his position on ethanol has flipped and flopped and governor bransome has said he should not be elected in the state of iowa a remarkable feat for a sitting governor. We see that number of people have come out and basically said mr. Trump is the best person in this race for the state of iowa and moving forward i ilulung corey including Jerry Falwell jr. Its up to the people of iowa to decide who ultimately on monday will be the caucus winner but i can tell you donald trump is in the state of iowa competing every dhar for votes. Corey, youre a political pro. Arent you worried about that possibility of an empty podium at tomorrow nights debate . Look, you know what it is, when donald trump goes tomorrow ght into des moines, iowa and we start raising money for veterans and Wounded Warriors have multiples of millionssf dollars raised for them and the they want to support that and fox goes back and say they should have had 24 million watching their debate instead of 1 million its a disservice to the American People. You and i both know the only reason their ratings are as high as they were on the first debate is because donald trump was on the stage. Higheses rated Cable Television show in the history offv and thats bececse donald trump was on the stage. People who bought advertising time thinking donald trump willould be on the stage will be very disappointed when nobody decides to watch it because politicians are all talk, no action. Corey lewin do you skilewandowski. Our latest poll showing bernie sandede leading in iowa. Reporter Bernie Sanders is catching up to Hillary Clinton really close here in iowa, sanders clearly has momentum. Closing in on Hillary Clinton in iowa, Bernie Sanders confidently took adetour to neighboring minnesota. What turnout. Reporter overnight 15,000 people turned out in st. Paul after 6,000 flocked to see Bernie Sanders in duluth. A were seeing here today that has the energy that has the enthusiasm, that has the momentum to take us all the way to the white house. [ cheers and applause ] reporter today sanders visits the white house for a private meeting with president obama who just this week rejected comparisons between his historic 2008 campaign and what sanders is doing now. Our childrens future is shaped both by the values of their parents and the policies of their nation. Reporter in a new tv ad Clintons Campaign touts her told a crowd of 500 supporters stands in contrast to Bernie Sanders. That imot just shouting slogan, im not just engaging in rpetoric. Ive thought this through. I have a plan. Reporter and when a supporter in iowa suggested clinton should appoint obama to the Supreme Court she seemed genuinely intrigued. Nobody has ever suggested that to me. Wow. I love that. Wow. Reporter there is more good news for Bernie Sanders in iowa this morning. Check out this new poll from Quinnipiac University of iowa democrats, it puts Bernie Sanders with 49 , Hillary Clinton with 45 , going into this last week, another poll, george, showing Bernie Sanders pulling ahead in iowa. Does have some momentum there. Well bring in matthew dowd, as well. Got to talk more about donald trump and t tt big decision. Let me begin with you, you just ard corey and says donald trump wont show tomorroww night. Weve gone from uncharted territory to the middle of the ocean in the dark with no compass. I have no idea what this is going to do. Ihink it all turns on whether the voters in iowa think that itss sign of strength that hes not doing it or a sign of weakness and we dont know right now what the perception will be and thats where i tnk it will turn whether its an asset or liability over the in exfive day. What has worked for donald trump up until now he always appears to be stron and always to be unafraid to say whever is on his mind. Youve been reporting. His opponents saying hes afraid of taking tough questions. Oh, and this is an incredibly high risk move, george, at a really bizarre time. Everything seemed to be breaking donald trumvs way. He was moving ahead, his largest margin nationally, moving aad in iowa and then he does this facing that risk that you asked corey about of having an empty podium at center stage, already his opponents are saying this is a sign that donald trump is just afraid to come out, afraid to show up at a fight and that is so going back to your analysis, matthew, is this seen as strength or weakness, whats your gut on where that goes . I think in the short term reaction i think his voters, Donald Trumps voters will see it as a sign of strereth. I think thats what the Immediate Reaction will be. It puts a lid on his capacity to grow because others see it as a sign of weakness but for the short term up to iowa i think theyll see it as a sign of strength. Thanks very much. A clarification from yesterdays interview with donald trump. P. I incorrectly identified a republican strategist in one of my estions, it was henry bar barber, not haley barbour. I apologize. A 23yearold american citizen behind bars accused of planning a massacre at a masonic temple in milwaukee Pierre Thomas has the latest. Good morning, pierre. Reporter good morning, amy. The fbi claims it stopped a scale bigger than San Bernardino charging a terror suspect out to spark a religious war allegedly. Samy Mohamed Hamzeh is in jail this morning accused of plotting a killing spree targeting this milwaukee masonic temple. Scary to say the least. You never know whats going to happen or where. Reporter the alleged plot laid out in chilling specificity, the plan to lock the doors of the temple and systemically execute 30 people. Using machine guns, equipped with silencers. According to the fbi, hamzeh sought to launch it with two other radicals touring it last week after practicing at a local firing range. Agents say the 23yearold american citizen was caught on surveillance tape describing in detail his coldblooded mission. Annihilate everyone, when we go into a room, we will be killing everyone. If this hit is executed, it will be known all over the world. The people will be scared. Our abc news affiliate wsin learned hamzeh was recently fired from hi kickboxing gym where he worked as a trainer for just three weeks. Let go after h hwas allegedly aggressive what clients and sparaging to america. That shot up a huge red flag and he was all out about how terrible the goverent we have yet he lives in america. Reporter but it was all a sting. The two other radicals were undercover working with the fbi. The investigation launched in september of last year after the fbi learned of hamzehs alleged radical thinking from an informant. The fbi says hamzeh wanted to attack two defend islam. He was arrested this week after allegedly buying machine guns and placing them in his car. Amy, george. All right, Pierre Thomas with the latest from washington, thank you. Okay, outside to rob. Boyhat snow came fast and is leaving fast too. We lost half of the snowpack just in the last three days. I want to show you a comparison it looked like during thehe blizzard on saturday, just almost a ghost town. People walking through times square with no traffic and snow covered streets here around the 42nd street area and today obviously a whole different ball game with even just the owbanks down to about ankle level. The warmth is going to init. Temperatures well above freezing but then a cold front comes through tonight, refreezing at least for a couple of days. They e shedding layers out here, amy and george. Come out and enjoy at least for now before it gets colder. Coming up on gma that abc news exclusive, the doctor caught on camera attacking an uber driver, she joins us live sharing her side of the story for the first time. Then new concerns about the dangerous zika virus spreading. More cases reported here in the u s. , dr. Besser joins us with what all travelers and pregnant women need to know. Making more millions. Headlines for dropping 26 pounds and still eating bread. Were going to tell you how she did it when we come back. What if there was another way to look at relapsing multiple sclerosis . This is tecfidera. Tecfidera is not an injection. Its a pill for relapsing ms that has the power imagine what you could do with fewer relapses. Tecfidera may cause serious side effects, such as allergic reactions, pml, which is a rare brain infection that usually leads to death or severe disability, and decreases in your white blood cells. The most common side effects are flushing and stomach problems. 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