Course, days ahead. Pete buttigieg is rising. Bernie sanders could be vulnerable. Joe biden is facing a potentially fatal blow for the campaign. Here they are. Among likely New Hampshire primary voters, sanders leads barely. A far cry from the 22point blowout in 2016. The lead over buttigieg within the margin of error. Warren in third and biden in fourth. Continuing to leak support. And this isnt the only poll that shows them heading in opposite directions after the Iowa Caucuses. Buttigieg up 12 points since mondays caucus night. Biden down 7 in the same period of time. Hard to see how biden explains away back to back fourth place finishes if that happens in New Hampshire. Of course, what is the percentage in fourth . Double digits, single digits, that might matter some. All of it would likely dove state the electability argument. Remember, New Hampshire is a battleground state in the general election and while the campaign can say voters of color are the base in a primary dont you got to win a primary in a state to win the general election in . New hampshire is one of those states. The campaign sent a clear signal they know the predicament theyre in as biden advisory anita dunn apparently has now an expanded role in the campaign. Not clear whether its announced by the campaign but it did leak out and certainly sends a public signal that this campaign is trying to find new footing. The other big headline from the poll, enthusiasm. Up for buttigieg. Big. Sanders supporters are still the most enthusiastic but the number of likely primary voters to strongly support buttigieg spiked nearly 20 points. These numbers come as democrats reeling from a nightmarish week marred from infighting over the iowa caucus meltdown, concern of the state and the prospects of an imploding biden candidate. As sort of a most durable in this field. Needless to say, it could be ugly on the debate stage in New Hampshire tonight. Two of the candidates, warren and biden in particular, need to change their trajectories and that usually means they are going to be more aggressive tonight. Joining me now are some of the nbc news road warriors, all over New Hampshire. Mike memoli, shaquille brewster, ali vitale and mike memoli, the anita dunn news, my understanding it was not intentional but leaked out and not necessarily something to advertise. Is it a shakeup are a reorg . Reporter chuck, it is hard to really read what this means. I dont know that you can send a staff memo and not expect it to get out and really hard just the way biden world operates to see this as much of a change at all. Theres less of a flowchart in biden world as much as a kitchen cabinet, multiple people who have his ear and a say in Decision Making and hearing an elevated role for dunn, i said i dont know what that translates to. But clearly, they wanted to send a signal i think of sorts to the outside world, especially the donor world as there are certainly questions of him and im saying this from the beginning of the campaign about joe biden, his biggest strength is perceived strength and right now it doesnt feel like a strong campaign, a strong candidate heading into the debate and creates a vicious cycle to see in the poll numbers. What they hope for and try to do tonight with the Vice President is show that sort of fighting spirit that he showed in the one event we have seen from him in last 48 hours, the question is how much do the other rivals sense sort of blood in the water and how much do they go on the offense against him . He is never a natural aggressive offensive player on the debate stages. No, he is not. Reporter pulling that off tonight then it could be a good moment for him but an interesting night, chuck. Look. When he had his back against the wall one on one hes come through. It is the Group Settings that he had struggles with. Reporter thats right. In the past. Shaquille brewster, let me go to you about sanders. Theres a lot of focus on biden and talked about the disappointing turnout for team sanders in iowa. How concerned is the Sanders Campaign the electorate in New Hampshire is so different than four years ago . Independents and moderates wanted to play in the republican primary and none really participated in the democratic side in New Hampshire. This time, youre john kasich, Chris Christie voters probably vote in the democratic primary making the bernie challenge harder, does it not . Reporter it does. I did ask senator sanders about that in an interview with him earlier this afternoon and he admitted he was kind of disappointed in the turnout that he saw out of iowa. He said he wants historic turnout and did not see that. What you are seeing from him today is trying to pivot and escalate the tension, escalate the attention on mayor Pete Buttigieg. He was at a panel today this morning and started to list different headlines of different outlets of how mayor Pete Buttigieg received support of billionaires. I asked him why is he doing that now. Listen to what he told me, chuck. I think its important for people to understand where candidates are getting their support. He has received donations from over 40 billionaires including and in addition the ceos of major drug companies, whole lot of money from wall street. A whole lot of money from fossil fuel financiers and if people out there, not everybody is, but if people are interested in real change in this country you got to take on these people not take money from them. Reporter and thats clearly a preview of a message likely on the debate stage tonight. One quick thing to note from the interview, chuck, we know that on monday theres a deadline for candidates to request formally from the Iowa Democratic party for a recanvass of results. Senator sanders said he is not going to ask for a recanvass and will request that the Iowa Democratic party look into the irregularities that we have reported on, that his campaign highlighted to look into that and he will be making that formal request, chuck. Very interesting there. I think team bernie knows they have to have a light touch here because a reason iowa imploded is they did get the demand to get the multiple reporting numbers out there so i think the light touch is probably the smart play there. Thank you, shaq. Let me go to vaughn hilliard. Pete buttigieg, they have the momentum and means he is going to have the target on his back tonight. You know . Team biden is afraid of seeing buttigieg win New Hampshire. Obviously team bernie doesnt want to see buttigieg win New Hampshire. Theyre coming left and right at him. Is he ready . Reporter look, exactly, chuck. Pete buttigieg couldnt have asked to be in a better position than right now coming off an iowa caucus victory and see that polling, a significant lead over joe biden, the fact that he is able to make this a one on one race at this point with Bernie Sanders is significant. You were mentioning that independent flare here in New Hampshire. When you look at Voter Registration in the state, more than 40 of the voters here in New Hampshire undeclared, essentially independents and they can choose which primary they take part of. What should you expect . As you were mentioning, more independents to take part in this process. What that iowa caucus victory did for Pete Buttigieg is validate the message three weeks in iowa, the best positioned to bring over independents in those disaffected republicans from that one state he was able to do it. Now, the question here, Bernie Sanders backyard, Elizabeth Warrens backyard, is he able to do this . This is a south bend mayor. Senator coons talking with Andrea Mitchell and suggesting that perhaps New Hampshire isnt the best metric for joe biden because it is not his backyard. This isnt the backyard of south bend, indiana, either. The fact is that Pete Buttigieg is able tonight on the debate stage to stay focused, stay above the fray and validate and make the case to folks beyond that he can win and he could pull off a general election case against donald trump. Vaughn hilliard with team pete, thanks very much. All right. Now to ali vitale an ento me the candidate to intrigue and watch tonight on the debate stage. No, im very curious, i think Elizabeth Warren could have an opportunity. If everybody is shooting arrows at each other and bernie and biden and buttigieg is maybe the target, warren has an opportunity to be the adult in the room if given the chance and she kind of needs a moment in this debate i think, as well. What is their strategy tonight . Reporter it could go one of two ways. You could see her invoked and mired into a debate where the polite part of the primary seems to be fading away at this point or see her continue to pull that unity message she is putting out on the campaign trail on to the debate stage and trying to do that for a few reasons. Her campaign regularly talks about building a coalition. Looking at the strategy after iowa, it is all about if i talk to my sources in warren world pulling together as many delegates as they can, especially if the results continue to be kind of convoluted like they were coming out of iowa, no clear frontrunner, no one running away with it and banking on that and i think specifically about the memo that the Campaign Manager put out a few weeks ago saying the early states are important but we have over 1,000 staffers in 31 states, ready to go the distance on this thing. The only thing is once the field winnows, we want to build a coalition. I cant tell you the sources i have had over the last few months tell me thats the plan on campaigns that long since left the field. Everyone wants to build a coalition as the field winnows. At some point that strategy will work. Whether or not it works for Elizabeth Warren is if she has the resources and money to stay in the race and maybe even more than the polling data or the delegate numbers out of iowa and New Hampshire to me i think the numbers that are the most telling for Elizabeth Warrens future are what comes out of the fec reports. Does she have the money to sustain the campaign . It is still she has a it will be hard to explain how somebody from a neighboring state finished behind somebody not from a neighboring state. I think third place finish is going to be very difficult for her campaign to explain away. But then again, i think anything is possible with her campaign. Im not ready to write anything off with her. Reporter thats true. I think thats absolutely true, chuck. They continue to say about iowa the fact that they feel she overperformed the former Vice President , her surrogates pushing this point that, yeah, she came in third in iowa but the thinking tells you theres three tickets coming out of there. Yeah. Michael bloomberg may have stolen the third ticket. Thank you all. We have more coming up from New Hampshire as we get ready for a possible friday night fight on the debate stage. Ill talk to a top adviser of the Sanders Campaign and anchoring special coverage of the New Hampshire primary tuesday night and streaming live on nbc news now at 7 00 eastern and updates on nbc news with lester, as well. Watch the full nbc News Coverage on apple tv, roku or wherever you get nbc news. Com on your computer. Later, President Trump unleashed. One day after saying he would be looking for revenge, a key witness was escorted off white house grounds. 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I think the bulk of the credit for the achievements of the Obama Administration belong with president obama. He call himself a democratic socialist. Well, we are already seeing what donald trump is going to do with that. Donald trump says that he would love to run against Bernie Sanders. Well, maybe not. Donald trump lies a whole lot of the time. You know one of the advantages i have is that i decided not to fund my Campaign Spending 70 of the time with billionaires and Business Executives i have gone all over the country. Pete buttigieg has exclusive billionaire donors of any democrat. Joining me is jeff weaver for the Sanders Campaign. Good to see you, sir. Good did see you, chuck. How are you . Pretty good. I want to start with our poll. It indicates we are starting to see some distance. Theres the two of you, sanders and buttigieg. A lit billitle bit of space and warren and biden. If this is where we are headed tuesday night, what does that tell you where this race is headed . Two and a half person race with the wild card of bloomberg . Where does this go if we see the same order or the same sort of outcome where the two of you in one place and the two of them are in another . Well, chuck, i think its hard to predict one state to next. Nevada is different than New Hampshire and we saw in iowa the tremendous support that senator sanders has with latino voters and play a bigger role in nevada and california and going to come down to the senators benefits in those races. On nevada, how much is a problem for the medicare for all with the Culinary Union . They like their health care plan. Well, you know what . We are offering them a Better Health care plan and a law to give 12,000 or more a year and we think thats a good deal for folks. You think they believe it, though . Thats a tough thing to do when you have an idea that is not popular. Your candidate is more popular than the idea. And if the idea is not popular you know we wont do well without the other. I get that. You cant getting this passed where it is underwater with the public is a pretty tough hill to climb. Well, look. I think theres been studies on medicare for all in polling. Democrats support it. Independents and many of the polls are supporting it, majority support it. Even some polls showing significant support of republicans, particularly people in Small Business world crushed with high premiums right now. So we just need to have more discussion about medicare for all and get to the truth of what it does for people which is to comprehensive health care at lower prices. The makeup of the New Hampshire electorate, four years ago there were two active, very competitive primaries taking place on both sides of the aisle and in some ways because Hillary Clinton sort of ceded New Hampshire, whether she did or not, kind of, you had moderate republicans like kasich an christie, a lot of moderate independents voted in the republican primary. This time theyre likely to vote in the democratic primary. How concerned are you about that . Well, i have to tell you that four years ago we were very concerned about independents crossing over into the republican primary, frankly. Because senator sanders does overwhelmingly super well with independents in New Hampshire and other places and a reason why hes a formidable gen