President ial race. For democrats this is the first true test to see who can Gain Momentum in an effort to secure their partys nomination. On this super bowl sunday, we are seeing an allout blitz. Candidates are canvassing the hawkeye state, their last chance to speak to wouldbe caucusgoers after town halls, rallies, hand shaking, it all comes down to this. But which way is the make or break state leaning . If you listen to them, this race remains as close as ever. Pete seems a little too slick. Joe biden perhaps is aged. Im as undecided as other people are of their first choice. I dont understand why people can be undecided in this party. Theres no way to beat trump without capturing the middle ground. So the stage is set. The candidates are swarming, and in iowa, cnns own jeff zeleny who is live for us in des moines. Jeff, who stands to make the biggest impact potentially in these final hours before the caucuses begin . Reporter well, fredricka, the Closing Arguments have begun with all these candidates and something else. A beautiful winter day here in des moines. Im outside a rally for Pete Buttigieg. He was in eastern iowa earlier. Hes coming back here to Lincoln High School in des moines. You can see several dozen, maybe hundreds, of people are lining up here to get another chance to see Pete Buttigieg. They have seen the former south bend, indiana mayor many times this year. He is making a standout here. But Bernie Sanders and Elizabeth Warren are making their case on the Progressive Side of the aisle. They are urging a revolution. Senator warren is saying she can unify both sides where joe biden is urging a more moderate approach, really approaching electability, and Amy Klobuchar is saying to focus on november. She is saying find the candidate who can beat President Trump in november. All candidates are pushing a very strong electability message. There is no agreement what electability means. It means Different Things to different people. But the key now is not whats happening with the candidates, its whats happening in the neighborhoods across des moines, across the larger cities and smaller towns across the state. Caucuses are about organization. Caucuses are a team meeting, if you will. There are about 75 of them across the state where friends and neighbors come to express their thoughts. If turnout is big, does that benefit Bernie Sanders . Thats what he believes. If it is small, it might benefit a smaller candidate. But no question this is the beginning of the road, certainly not the end of it for most of the candidates. One more day, fredricka. The clock is ticking, jeff zeleny. Thank you so much. Meanwhile, some of the more moderate members of this race are staking their claim on this key state. Cnns abby phillip is following Pete Buttigiegs campaign in coralville, iowa. Abby, hes the youngest candidate in this race but he says he has the best chance to beat President Trump. Why is he so confident . Reporter thats right, fredricka. Pete buttigieg is headed to jeff zeleny back in des moines, io. But here he was making the case to some 900 americans. This is when they prove the work of the last year or so, that they can have a campaign that goes beyond these four states. The Buttigieg Campaign has spent a lot of time and energy here in iowa. In New Hampshire well go to in just a couple days and the other four states, and i asked him how porn is it that he perform here for the viability of his campaign . Heres what he had to say. These states are absolutely critical. Its one thing to campaign for a year talking about why we believe were the best campaign to go out there and beat donald trump. This is our first chance to begin to prove it, and it all starts with the caucuses. Reporter so as jeff pointed out, the question for a lot of iowans is about electability, and the answer for Pete Buttigieg is electability is going to show up monday night at the caucuses. If his campaign is able to show strength here in iowa, he has not been able to say that he has to win in the state. He talked more about having a strong showing, and theyll be looking, he says, today at his showings in urban places like des moines, but he spent a lot of time in suburban and rural parts of the state showing how it went from obama to trump in 2016, and if there is a bump, that bump will be those people who might be coming back to the democratic party. Well be looking to see if any of that materializes for the Buttigieg Campaign tomorrow night, fredricka. Abby phillip, thank you so much. In des moines, our john berman. Okay, this is a big day. Yes, its super bowl sunday, big for the nfl, but really, this caucus is the big dance that iowans are so excited about. And the candidates, of course. Look, the super bowl is every year, the iowa caucus is only every four years, so i can make a compelling case that this is bigger. And they dont put out yard signs for the super bowl. Theyre everywhere here, fredricka. Thats right. Before going on the ground here, President Trump is spending the day in iowas caucuses going after the one democratic candidate who isnt even on the ballot here. Its a presuper bowl interview. The president targeted Mike Bloomberg following a rule change that could potentially allow the new york city mayor to make his first debate appearance. The president attacked bloomberg over his height. Watch. Michael bloomberg. Very little. I just think of little. Now he wants a box for the debates to stand on. Okay, its okay, you can be short. Why should he get a box to stand on, okay . He wants a box for the debates. Why should he be entitled to that . Really. Does that mean everyone else gets a box . I guess if they want to negotiate cory booker and all these people couldnt get any of the things that bloomberg is getting now. I think its very unfair for the democrats. I would love to run against bloomberg. I would love it. So in a statement the Bloomberg Campaign responded saying, quote, the president is lying. Hes a pathological liar who lies about everything. His fake hair, his obesity, and his sprayon tan. So these attacks between the president and Michael Bloomberg come just hours before their dueling ads are set to compete during tonights super bowl game. So here to talk with me about, frankly, whats not going on in the super bowl but whats going on on the ground in iowa, ryan lizzo, julie pace with the associated press, and mark presson, senior political analyst. Neither of them are on the ballot in the Democratic Caucus which is tomorrow. But they do raise a point which is the central story line in the Democratic Caucus here, and thats that each and every candidate is focused exclusively on, i am the best candidate to beat donald trump. Amy klobuchar, thats all she talked about at length saying, i can beat donald trump. Because its what democrats care about. Yes, they care about the economy and whats going on in the world, but most of all, they care about beating donald trump. At the events i was at yesterday, voters in the state are still really torn as to who is in the best position to do that. I think donald trump has really highlighted that concern. Hes going to throw everything at his eventual opponent. Deep attacks on the record. Nothing will be out of bounds and its really difficult to know who will stand up best to that kind of pressure. The famed box attack right there. Ryan, you have written there was an unbreakable rule so far which is these candidates dont want to attack each other, and if they do, theres consequences here. I wonder if youre starting to see that change a very little bit in these final days and or if theres some sense these candidates might regret that they actually havent campaigned against each other. You have to win a primary. You wouldnt have said what you said to fred about the super bowl if the patriots were in it. Lets be honest here. Its very subtle. Theyre differentiating themselves in some ways but barely mentioning the other candidates by name. Much, much different, frankly, than 2004 where you had gephart and dean destroy each other in the end. Barack obama attacked Hillary Clinton saying she was essentially a liar. You dont have any of that going on here. The last few weeks has been Elizabeth Warren saying they dont want social security. Ive been out with buttigieg, biden, warren, sanders all week. They are not throwing elbows at their opponents. Two reasons for that. One, the lesson of 2004 was gephart was on and allowed trump to win. You might not go to the candidate who has been calling your guy bad names all week. So this is my sixth iowa caucus here on the ground, mark, and its different than any ive been at before. For a variety of reasons. One, its warm here. 44 degrees. Second thing is, i dont think ive seen voters as uncertain as ive seen them here the last few days. And the last thing is i dont think ive ever remembered so many possible story lines coming out of tomorrow night. It isnt so much we dont know who will win, because theres four candidates who conceivably could, but how they win and the difference between first and fourth out of here, iniffinite possible story lines. Democrats, it was a big battle with Hillary Clinton. If Hillary Clinton lost, where would the democrats go next . Now its certainly a weakness at this point because theyre so diverse and so anxious and aggressive at trying to win, and their supporters, quite frankly, are more aggressive than the support efers in many cases. Thats why you have this dynamic ryan was talking about that candidates are on the campaign trail. Theyre trying to take little pieces out of their competitors. At the same time, though, they have to live for New Hampshire. They have to live for South Carolina. They have to live for nevada, and i just think were at this very strange time. Specifically the criticisms. If you look at the Bernie Sanders criticisms of people saying Bernie Sanders is out there criticizing the candidates, hes not. Hes actually becoming a victim of his own surrogates out there who have created headaches for him. That proves the rule about the ssurrogates. The other night at the big rally when one of his surrogates booed Hillary Clinton, it created all kinds of drama in the Sanders Campaign. They were not happy about that. Her colleagues showed up at Bernie Sanders concert in cedar rap rapids. One thing about the Sanders Campaign this time around, theyre a disciplined operation. But theyre having to apologize for a lot of things. Anywhe if theyre disciplined, they would keep from saying it the first time. I think two of the expectations being set by everyone right now is the campaign saying, Bernie Sanders has the momentum and maybe joe biden is fading a little bit. Both of those things could be at their advantage and on the ground. I think the Sanders Campaign is openly predicting success in iowa. If things went south, that would really be damaging for him, but they feel especially in these College Towns here where you have a lot of young voters, they believe theyll be able to run up the score there. The messaging for the Biden Campaign has been pretty fascinating to watch the last couple days. I was at a breakfast this morning with some of the advisers of the campaign, and they were saying, iowa is the start, its not the end. You have to look at the first couple states in totality. What happens not just in iowa, but in nevada . So they are guarding against any overreading of iowa. If they have a success, though, you can expect them to be touting iowa as the most important state. Oh, absolutely crucial. Ryan, julie, mark, thank you very much for being here. Well talk to you throughout the afternoon. Now back to fred with some breaking news. Thanks so much, john, were following developments out of london. Metro police have shot and killed a man after several people were stabbed in what authorities are calling a terrorrelated incident. It all began unfolding on a busy street in streatham, a london neighborhood. Lets bring in haras gold. Haras, what are you learning about this . Reporter fred, were in streatham on high street. Its very residential, theres not Tourist Attractions out here. This is a very unusual place to see some sort of incident about this. Just about 2 00 p. M. , first calls came in about an incident happening on main street here. On a sunday afternoon, it is packed with families and people going about doing their weekend shopping. What we understand is two suspects were shot and killed by police. Weve been speaking to witnesses all evening where they said they started hearing screams and shots, and they came out and saw what they described as a very large man who was wielding a knife and had some sort of device attached to him. They said it looked like silver bottles or metal canisters of some sort. I did speak to witnesses who said they witnessed what seemed just like regular people, might have been Plainclothes Police officers shooting at him, but we know there actually has been three injuries. One of them is lifethreatening. The suspect is shot and dead in what police call a terror incident. There are no other suspects right now. The incident is clearly contained, however, we dont know where the suspect is from and what the motivations are. Were trying to learn all that right now. Hara srb ark brkhadas gold, that update. The coronavirus skyrockets to 14,000 cases around the world. Can hunter get around joe biden . Well talk to an adviser who has endorsed him. Youre watching cnn newsroom. And this is cc cream. It gives you your skin but better. Its your full coverage foundation, spf 50 plus anti aging serum. Discover the 1 cc cream in america. It wouldve saved me a lotspen of money that i spent. Discover the 1 my family has bad teeth. When youre not able to smile you become closed off. The meaning of a smile to me is the beginning of a conversation. The best advice i can give anyone. Is dont wait. At aspen dental, were all about yes. Like yes to free exam and xrays for new patients without insurance. 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Since yesterday it went from 12,000 to 14,000. 45 people have died. New travel restrictions take effect today at 5 00 p. M. Eastern time. It blocks any Foreign National who recently visited china from entering this country. The pentagon is preparing military housing for up to 1,000 people who may need to be quarantined on their return to the u. S. Cnns Lucy Cavanaugh is at March Air Reserve Base where people are staying after flying from wuhan, china. What do you know about that . Reporter we know the second flight is on its way to wuhan, the second episode of the coronavirus outbreak. Remember, china is roughly 13 hours ahead of where you are. Its already early monday Morning Hours there. We dont know what time this plane will depart or how Many Americans it is expected to take, but according to one u. S. Official who is familiar with the matter, there could be more than one additional evacuation flight out of wuhan because of high demand there. The folks who are still in wuhan, the americans, are largely ordinary citizens. Most of the diplomatic staff got out on this first flight. Theyre at the air reserve base behind me and have been for several days. Two other bases in california, fort carson in colorado and the lackland air base in texas, they are preparing for 1,000 americans to be quarantined which has now been bumped up to 14 days. And that is because were learning that folks infected with this virus could be contagious before symptoms even appear. I have been in touch with one american who is located hes been under quarantine at this air base here. I spoke to him this morning as they were having breakfast. He said folks are largely in good spirits. They have most of what they need from the outside world. He has his own business so hes been able to get a laptop computer to do work while hes under quarantine. He said the base was actually organizing a Super Bowl Watch Party for the 200 or so americans under kwaurquarantine. Theyre eager to get home to their families,