Break free. Authorities now warn they could be anywhere. You like me now super bowl bound quarterback everything from his end zone celebrations to his fashion choices saying hes being his skin. Now, the socalled superman is letting his playing do the huge showdown. And good morning, america. Lets keep that how you like me now going. It applies to cam newton. Who else does it apply to . Donald trump right now. No question n t. What a scene last night. Donald trump toe to toe with bill oreilly on fox news. All signs he did not convince him to take the debate stage. Take a look at these poll numbers gaining momentum in iowa now at 32 . Is trump, though, taking a risk not showing up at tonights debate. Or is he keeping his momentum that is the big question now. Hell hold his own event in des moines and tweeted out a couple other candidates will join him therer as well. Both stages set. Just four days until the Iowa Caucuses. Its your voice, your vote and we begin with tom llamas in des moines. Good morning, tom. Reporr george, good morning to you. This gop debate fiasco has essentially turned into a prize fight. Senator ted cruz saying last night hes booked a venue for saturday night in sioux city, iowa, to debatattrump oneonone and superpac says theyll give 1. 5 million to a Veterans Charity if trump shows up. Overnight the gop drama starring donald trump taking wild turns. I dont think not showing up at the debate tomorrow night is good for america. Reporter first trump appearing on the very network whose debate hes boycotting. I was not treated well by fox of this do you take . I have zero respect for megyn kelly. I dont think shes very good at what she does. I think shes highly overrated. In your Christian Faith reporter Host Bill Oreilly turning to the bible suggesting trump channel his christian values and appear at tonights debate instead of hosting his own event at drake u uversity. You know its called an eye for an eye also. You can look at it that way. Thats old testament. No, no, no. Bill, you are taking if youre the christian, the eye for the eye goes out. Heres what it is. Turning the other cheek. Right here. Youre taking this much more seriously than i am. Reporter asking trump if hes being too tense tiff. A lot of people thought when you started to that this was a joke, that youre a buffoon. You know it all. But now i dont think they thought i was a buffoon. What kind of a statement is that . Reality guy not a nice way of expressing. No, they thought i wouldnt run. Reporter overnight another development. In a oneonone debate mano a sending this letter to the Trump Campaign announcing the duel which reads in part, we owe it to the men and women of iowa. So, we have a venue. We have a time all were missing is a candidate. Reporter the Trump Campaign calling this a desperate attempt to gain re publicity and thaha the cruz campapan is failing in iowa. I caught up with cruz after his late night rally you think donald trump is afraid to debate you personally. Actions speak louder than words. I would welcome him in sioux city saturday night. We have a venue, a town hall and at the end of the day i dont think hes afraid of megyn kelly. I dot even think hes afraid of me. I think hes afraid of the people of iowa. Doesnnwant to answer their questions or defend his record. Reporter and as for that 1. 5 million in superpac money from that superpac supporting ted cruz if the debate happens between trump and cruz, the money is dirty money and the superpacs own d cruz and open to debating but in canada. Thank you. A lot to talk about on the democratic side, as well Bernie Sanders and Hillary Clinton now neck and neck in iowa. A new poll out this morning showing sanders at 45 . Thats within three points of hillary, meaning they are statistically tied. Abcs jon karl has the very latest from des moines. Good morning to you, jon. Reportete good morning, amy. With just four days to go until those Iowa Caucuses, the battle between Hillary Clinton and Bernie Sanders is getting heated and personal. Overnight before an overflow crowd in mason city, iowa, Bernie Sanders took this shot at Hillary Clinton. My opponent is not in iowa tonigh she is raisisi money from a philadelphia investment firm. Reporter the Clinton Campaign hit back noting that hillary also met with nearly 50 across the country while in n philadelphia. Clinton called out sanders for his recent attacks on her high speaking fees. Senator sanders has started to get increasingly personal with his attacks even compared me to dick cheney last week which, you know, is kind of a low blow. Reporter earlier in the day sanders was back in washington traveling to the white house to meet with the man he hopes to the president and i discussed this morning a number of issues. Reporter sanders emerged from the 45minute meeting predicting he can pull off an iowa upset over clinton. If there is a large turnout i think we win. Reporter while president obamas pledged hell remain neutral in the race clinton is doing everything she can to embrace him. I dont think president obama gets the c cdit he deserves. Reporter but there are signs of Bernie Sanders momentum everywhere in iowa even at this clinton event in a bowling alley. 60 bernie, 40 hillary right now. Stretch, the Clinton Campaign is hoping for a big boost from bill clinton, in fact, the former president looks like a candidate he has 13 events between now and the caucus. George, that means that bill clinton will actually be doing more Campaign Events in iowa than Hillary Clinton. My goodness. Thats what he loves. Jon karl, stand by. Im here with matt dowd, our political analyst. Yesterday you posed the question on donond trump, would his refusal to go totohe debate be seen as a sign of strength or weakness. 24 hours later . His supporters are sticking with him through thick and thin in the course of this. I dont think thats a problem at this point. Its interesting, everybody that opposes donald thinks it was a bad idea. Everybody that supports donald thinks it was a good idea. At a minimum hes owning the news cycle but poses a bit of a question for fox news, for trump and other candidates. No empty podium at the debate tonight but how do the moderators and other candidates this is going to be a fascinating conversation because i think they may talk about trump more now than they did if he was at the debate. I think ted cruz is more disappointed than fox news that donald trump isnt at the debate because i think tetecruz is now behind donald trump. Ted cruz needs to start worrying about marco rubio. Rubio is starting to Gain Momentum in iowa. If he isnt careful marco rubio could coco up and finish seconon you talked about the momentum for Bernie Sanders in iowa right now. But that latest poll out this morning shows Hillary Clinton with a small lead, basically,a dead heat, right now in these final days and he had that yesterday. After seeming to put on the week. Yeah, in the timing was interesting bringing him off the Campaign Trial right before the Iowa Caucuses but the president had to come out and show he is keeping by his vow that he will be neutral in this race Even Campaign believes that if you went into that secret ballot that president obama would be voting for his former secretary of state. Matthew, the Clinton Campaign has to worry about deja vu. Thought they had a lead going into the caucuses eight years ago. If they let Bernie Sanders win iowa he will win New Hampshire and then this race totally resets in a different territory than they ever thought. Matthew dowd and jon karl, thanks very much. To amy. Some major developments in that weeks long standoff in oregon between armed antigovernment protesters and law enforcememt. Overnight police making more arrests as one of the jailed leaders calls on remaining militants to stand down and go home. Abcs Neal Karlinsky is in burns, oregon, with the latest. Good morning to you, neal. Reporter good morning, amy. Even though its harder to get a handle on whats going on out there at the compound we do know for certain their numbers are seriously begigiing to dwindle. This morning, jailed militant leader ammon bundy speaking out an aboutface telling his remaining supporters holed up on federal land to give up and go home. I love you. Let us take this fight from here. Please stand down. Reporter overnight the fbi taking into custody three more protesters, eaea facing one federal felony count of conspiracy. Police tightening their grip on the remaining militants now sealed off by heavily armed fbi s. W. A. T. Teams at roadadocks eight miles out as we found out when approaching. We cant let anyone through this way. Reporter police spoke out wednesday but gave no details about how Lavoy Finicum ended up shot to death by law enforcement, following a traffic stop and sweeping series of arrests along a rural road. The tion leaving the occupations leadership behind bars but at a deadly price. We all make choices in life. Sometimes our choices go bad. Reporter the groups supporters claim finicum was they shot lavoy literally murdered him and was ambushed. But an alleged witness in the convoy says thats not what happened. He charged at the law enforcement. He was not on his knees. There was a miscommunication. Reporter this morning investigators here are still sorting it all out and conducting a full investigation. Out at the compound we have reports of perhaps as few as five militants left raising hopes that this long siege could soon be over. George. Thanks, neal. We turn to the latest on that zika virus linked to a severe birth defect. There are now at least 21 zika cases in the u. S. Across ten states, the World Health Organization is addressing the spreading virus today and joined now by dr. Anthony fauci from the National Institutes of health. Thank you for joining us this morning. Youre calling this a pandem in progress. Outbreak in south america particularly in brazil and the caribbean certainly is expanding at an alarming way and the association and, again, geographically with this birth defect when the virus infects pregnant women although the evidence for that not definitive. Its highly suggestive that there is this association with microcephaly and have you two things, a brandnew pandemic in progress and evovoing in the western hemisphere. At the same time that youre seeing these disturbing sequela in pregnancy of infants born with this very, very difficult disability. Yeah. Spreading in the u. S. As well. Ten states right now, how severe is the threat to pregnant women here . Well, were going to see people who visit the areas, the regions in south america and in the caribbean who o ll come back to the United States and be ill having been bitten by mosquitoes thats a big difference than virurulocally in the United States. So, thus far, we have not seen rico and in the virgin islands. Finally i know you met t th president obama in the white use yesterday. Whats the action plan to address the spread of this virus and are the olympics in brazil at risk . We spent over an hour and a half with the president in the tuation room talkingngbout the plans of the cdc for the kinds of control, the Research Agenda both at the cdc and the nih, better diagnostic, really an accelerated aggressive approach to developininvaccines with regard to the olympics, what the brazilians are doing and planning is probably the best way and the immediate manner to curtail this is that very aggressive Vector Control and by Vector Control getting rid of mosquitoes from the standpoint of insecticides but also getting mosquitoes, standing water in pots, tires, things like that and the brazilian government is taking a very aggressive approach to do that. Dr. Fauci, thanks for your time this morning. Good to be with you. This is so serious and all of you can get the latest on the zika virus on our site, goodmorningamerica. Com on yahoo now to cecilia vega here with todays other top stories. Youre starting with another health crisis, this contaminated water in flint. Thats right. Michigans governor overnight releasing stark new details about the severity of the water crisis in flint saying about 200 children have elevated levels of lead in their blood. It comes as investigators say the lead level in the citys water supply has been trending better but that it is still too dadaerous to drink. New details in that Los Angeles BoundAmerican Airlines flight forced to return to london. The jumbo jet making an Emergency Landing after passengers and crew members suddenly got sick. One Flight Attendant collapsed in the aisle. Contamination may be the cause. D take a look at this, a trucker in jeopardy dangling from an icy pennsylvania hillside is alive thanks to this group of strangers who formed a human chain. More than half a dozen people there holding that big rig steady until they could pull the driver from the smashed cab. And we have an anniversary to mark, the Space Shuttle challenger disaster was 30 years ago today. There e ll be ceremonies nationwide to honor the seven crew members who died when challenger exploded 73 seconds after liftoff. And easy victory for serena williams, means shshis now headed to the finals of the Australian Open for the seventh time. And finally, what is more fun than watching your favorite hoop star n nl a spectacular shot just check out the cavaliers j. R. Smiths backboard pass to lebron james there to slam it nonothat unusual for lebron but set this kid off into a major happy dance that made everyone watching smile right there with him. That is like me on friday after work. Ive seen you d dthat. Yes. Oh. That was fantastic. Well continue the sports theme. To the super bowl and panthers quarterback cam newton lightning fast on the field and a bit of a lightning rod for critics as well this morning spiking out and abcs ryan smith has the details. Reporter hes been called everything from a showboat. Thats an extended celebration if youre an opponent. Reporter to immature. But this morning cam new on the, the end zone dabbing quarterback of the Carolina Panthers. The Carolina Panthers are nfc champions. Reporter is saying the reason behind some of that criticism is the color of his skin. Im an africanamerican quarterback that may scare a lot seen nothing that they can compare me to. Gets up, skipping along, takes a bow. Reporter newton saying wednesday his onfield exuberance is nothing new and that despite the criticism hes staying true to himself. Im doing exactly what i want to do, how i want to do it and when i look in the mirror, its me. Reporter his comments lighting up the internet. Some claiming hypocrisy, the end zone dances of white quarterbacks are celebrated. Not maligned. While others saying of newton, a prerehearsed dance is s ver classy regardless of race. The panthers coach saying he identifies with his star player. Some people want to tag me as a hispanic head coach. I just want to be tagged as a head coach. I dont think he wants to be known as an africanamerican quarterback but as a quarterback and a great one at that. Reporter for newton he says theres another reason his critics have him in their cross hairs. The only thing that changed is werereinning. Newton stressing he doesnt his fans hoping he doesnt chchge on the field. A super bowl win would make hip the third quarterback to win the and super bowl, guys. Hes really a target but fun to watch. Fun to watch and a lot of himself. Reminds me of joe namath. Got to love that he chose number one too. To rob. Tornado in florida . Yeah, two of them. This is the video from one in Broward County around ft. Lauderdale. Damage, as well up to 100mileanhour winds flipping cars, shredding up rooftops and threat for more today. Flood watch in effect west palm, seeing almost 5 inches of rainfall. Eventually clearing out tonight. It is cold again in the northeast. More snow coming to new york. No, flakes, see you in 30 minutes. Coming up on gma weve got an exclusive look inside the from as the manhunt grows. This morning phone systems, how well do they work. Our experiment coming up. Friends on the adventure of a lifetime. Theyve had to be saved at sea nine times. So is it worth it . Theyll join us coming up. So is it worth it . Ththll join us coming up. Crawfish shorts i like your style hooked it just a little bit window breaks, car alarm sounds dont open that cellar door epic comeback starts right here lucky shot. Mmm mmm mmm mm mmm mm mmmmm here you are. Anything i can do to make your stay mo magical . Well, i wish we could have e en more park time. Have dinner with a princess. Oo i want to ride the monorail oh, take a break by the pool. But be back in time for fireworks. Whoa when you stay at a select Walt Disney World resort hotel,l, you get the most out of your vacation. And your family. And now, youll save up to 25 off a select Walt Disney World resort hotel room. 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