Is she launching a big offensive against sanders just to make sure . And unconventional weapon. Kim jongun says he has a miniaturized Nuclear Warhead and south korea believes him. They say they can mount a nuke on a missile to reach american bases and tonight the u. S. Is taking that threat seriously. Im wolf blitzer. Youre in the situation room. Ted cruz calls it a turning point, a decisive win in wisconsin boosts the odds of a brokered Republican Convention in cleveland in july and his own odds of emerging potentially as the nominee. Now the campaign moves to Donald Trumps home turf, new york. Trump is heavily favored there and loads in other upcoming primary states like pennsylvania, but hell need almost 60 of all the remaining delegates to win a first ballot convention victory. Cruz, john kasich and others within the gop, theyre counting on a head count fight at a contested convention. Meantime after Bernie Sanders gained more momentum with a win in wisconsin, the democrats are on the road in pennsylvania today, but Hillary Clinton says shes feeling very good about her big delegate lead. Clinton has made new york her home and shes pulling out all the stops in order to stop sanders there. Theyll face off in a cnn debate next week. And whoever becomes the next commander in chief will have to deal with the chilling new threat from north korea. Kim jonguns regime is now believed to have the ability to mount a miniaturized Nuclear Warhead on a Medium Range Missile that could put the whole region at risk. Ill speak with the republican senator who is a member of the intelligence committee. Our correspondents, analysts and guests will have full coverage of all the days top stories. Lets begin with our cnn political reporter, sara murray. Shes in new york for us. The battle there is already beginning. Sara, what is the very latest . Reporter thats right, wolf, the Trump Campaign is hoping a string of wins in east coast states will give their campaign a boost. In the meantime, they are going to have to deal with this tough narrative coming out of wisconsin as well as a power struggle within their own campaign. After ted cruzs big win in wisconsin it was a turning point, i believe, in this entire election. Reporter the gop primary fight appears to be veering toward a contested convention. I am more and more convinced that our campaign is going to earn the 1,237 delegates needed to win the republican nomination. Either before cleveland or at the convention in cleveland. Reporter donald trump, lashing out tuesday night after his loss, and accusing cruz are illegally coordinating with the super pacs that support him. Adding, ted cruz is worse than a puppet. He is a trojan horse being used by the party bosses, attempting to steal the nomination from mr. Trump. Today cruz shot back. You know, donald can always be counted on to take the high road and to demonstrate class. If he wants to engage in insults, hes welcome to do so. He gets they angry when the voters reject him. Reporter now Trumps Campaign is trying to regroup and work through an internal power struggle between Campaign ManagerCorey Lewandowski and veteran gop strategist Paul Manafort. He recently joined the campaign to help with the delegate process but he may bow taking on a more prominent, strategic role, as he urges more discipline to ensure trump earns enough delegates to become the nominee. To avoid a floor fight, trump needs approximately 60 of the remaining delegates and the billionaire businessman has a hometown advantage. A monmouth poll shows 52 of gop primary voters support trump, compared to 25 for john kasich and 17 for ted cruz. But if trump cant get the delegates he needs and appears poised to lose in a convention fight, trump ally roger stone is already threatening retaliation. Were going to have protests, demonstrations. We will disclose the hotels and the room numbers of those delegates who are directly involved in the steal. If youre from pennsylvania, well tell you who the culprits are. We urge you to visit their hotel and find them. Reporter now, donald trump will be holding a Campaign Event pretty soon here in new york. This is one of the states he wants to win big, and his Campaign Still believes their best chance is trying to get 1,237 delegates before they get to the convention. They are still hoping they can avoid a floor fight in cleveland, wolf. Sara, thank you. Sara murray reporting for us. Ted cruz already campaigning on trumps turf. Sunlen serfaty is in new york for us. Cruz says hes on a roll. Whats the latest from his point of view . Reporter thats right, wolf. Senator cruz is trying hard to frame it exactly that way, even though he is well behind in the delegates. Hes certainly trying to capitalize on his win in wisconsin right now. Senator cruz essentially trying to paint his as the campaign that is on the rise and in contrast, Donald Trumps is a campaign on a downward slope, trying to really cast all of the string of recent donald trump losses as a broader trend, a broader passenger around his campaign. As he was campaigning here in the bronx today, we saw him offer something of a laundry list of those states that donald trump has lost recently to make this point, to hammer down on this point. Heres what he told me earlier today. He has now lost in four states in a row. He lost a landslide election in utah, he lost all six delegates that were elected in colorado. He lost badly in north dakota and yesterday in wisconsin, a state that he bragged the day before, the day before yesterday donald trump promised a, quote, big victory in wisconsin. And not only did he not get a big victory but the men and women of wisconsin resoundingly rejected his campaign. And the reason is simple. Donald has no solutions to the problems were facing. He likes to yell and scream and insult and curse. And his Statement Last night was consistent with that. Reporter that was a reference there to the Trump Campaign statement comparing senator cruz to a trojan horse used by party bosses. Now, senator cruz today as well as his aides really trying to brush that off, essentially, wolf, painting donald trump as a sore loser. Sunlen serfaty in new york for us. Joining us now, james risch of idaho. Senator, thanks very much for joining us. I know you had endorsed marco rubio. That didnt work out. Who are you endorsing now . I think now it becomes a matter of pragmatics for republicans. Im privy, as most americans are, to the polling thats out there and it is stunning the defeat that donald trump would face against Hillary Clinton. It would probably be epic and historical. If he were the nominee . If he were the nominee. So youre not going to support donald trump . Im not going to support him. What about the other two . Well, i would obviously kasich is so far behind its impossible really for him to get the numbers. So by process of elimination, that gets you to ted cruz. So you want ted cruz to get the republican nomination . At this point theres no choice. Well, there are other choices if its a contested convention. Theres been some who have said, you know what, maybe paul ryan, the speaker, on the third or fourth ballot could come in or someone along those lines. Wolf, there was a really good article on your website, on cnns website written by david gergen this morning. Hes a very smart man, as you know, and a deep thinker. And he laid out, i think, what is a pretty reasonable scenario as to how this thing plays out. Having said that, reasonable scenarios have not carried the day throughout this entire Campaign Season. So you see ted cruz as the republican nominee. At least you hope hell be the republican nominee . First of all, i do hope so. And secondly, this gergen article paints the path forward for cruz. Now, its entirely possible that trump gets the 1,237 as he walks into the convention. But he better have 1,237 when he walks into the convention, because whatever he has when he walks through the door, i think thats what hes going to have vote after vote after vote. And since you have to be have won eight states in order to be to have your name put in nomination unless they change that rule. Well, but whos going to change that rule . The rules Committee Meets the week before the convention and come up with any rules they want. They could, but its still going to have to be adopted by the convention. And the cruz people and the trump people arent going to vote for a rule that what happens if trump comes in and doesnt have that magic number but hes just short of it but still has a lot more than cruz and kasich. There are going to be a lot of angry Republican People at that convention if he doesnt get it, especially if he has millions more popular votes in all of these contests. Right. And i think theres going to be anger no matter what happens. Youre seeing it already on here where theres people threatening protests and what have you. Youve got to let the process play out. The process is very simple. You go to the convention and vote until somebody gets 1,237 votes. Now, if hes close and still doesnt make it, the guy who does make it will have to have 1,237 votes. I hear them talking about stealing the convention and all these conspiracies that are afoot and what have you. Theres a specific process for doing this and for voting. People need to let it play out. Why are you more comfortable with cruz . I know youre not necessarily enthusiastic about cruz. You said that, i didnt. But why are you more comfortable with cruz than trump . Polling. The polling i think is if you dig into the National Polling thats being done and you always look at favorable versus unfavorable and that ratio. And trumps favs versus unfavs are stunningly upside down, particularly with critical demographic groups. In a general election. In a general election. Women particularly, its stunning where he stands. So you think cruz would have a better chance if Hillary Clinton were the democratic nominee of beating Hillary Clinton than trump would, is that what youre saying . Thats what im saying. I think clearly he has a better shot at it with trump, unless things change dramatically, he has no shot at it. So far youre only i think by our count the third republican senator who now effectively on this program has come out and endorsed cruz. Lindsey graham and mike lee have. Did i just endorse . You sort of said you prefer him over the other two. I do. That sounds like an endorsement, doesnt it. I guess it depends on your definition. Why is he so unpopular, heres the question, with your republican colleagues in the senate . Well, i think people have different ways of accomplishing things that they want to accomplish. Sometimes its done with a smile and people are all happy at the end of the day and sometimes its not. And when youre when youre working with people and you do feel strongly about the issues, which ted cruz does, and frankly represents as hes proven in this primary, represents a very substantial number of republicans when it comes to his philosophical view of government and how government should be small. Youre going to give all these three remaining republican candidates credit. They started with 17 or 18 and theres only three left standing. Theres no question. And kasich, hes only won his home state of ohio, as we all know. But is he flexible enough, cruz . Youve dealt with him. Because the argument your Senate Colleagues make, hes so rigid and so unwilling to compromise that he would not necessarily be an effective president. You know, that remains to be seen. But if he is going to reach that level where he can bow te the president , thats going to happen during the campaign, not after he becomes president. So its going to remain to be seen who he listens to, how closely he listens to them and how he makes the adjustments he needs to make. Im going to ask you to stand by. Much more coming up. Well also take a much closer look at the democratic race. Some fascinating new developments unfolding today. Well be right back. [ male announcer ] this saturday isnt like last saturday. [ indistinct shouting ] bulk from boxed wont only save you money, it will save saturday. [ pop, screech, doorbell rings ] boxed bulksize shopping delivered easy with no membership fees. Like pigskinsusan15, who writes, now my boyfriend wants to talk on sundays. Just so many words. Your boyfriends got it bad. Maybe think about being single until the start of the season. R. On every plate and were about to keep it going. Yeah, youve got three more weeks to try the largest variety of lobster dishes of the year. Like lobster lovers dream. And new dueling lobster tails. This party cant last so hurry in. Our most advanced formula for joint health and comfort. Cosamin proven by more research than any leading joint supplement. Were standing by to hear from donald trump for the First Time Since his loss to ted cruz in wisconsin of the stand by for that. The gop primary ballots is moving to trumps home state of new york right now, but the results from wisconsin certainly making a contested convention in cleveland in july a whole lot more likely. Were back with the republican senator james risch. After losing in 2012 and president obama was reelected, the Republican National committee did what they call an autopsy, how to bring in more support from women, from minorities, from young people. Hows that working out so far . Well, kinda like this whole Campaign Season is. Conventional wisdom is out the window. Theres things happening out there with the general electorate that just really has escaped everyone. The predictions have been not very good, some of the polling hasnt even been very good. Cruz is not going to do well with a lot of those groups either. Well, theres certainly been some polling that says that. I think on the other hand, i think maybe cruz has the ability to step up to do that, but again that remains to be seen. Lets talk about north korea for a moment. Youre on the intelligence committee. Have they miniaturized a Nuclear Warhead that could potentially put u. S. Troops in danger of a Nuclear Strike . Wolf, i cant sit here and tell you that thats happened. What i can sit here and tell you is that the information is such that we, that is the world outside of north korea, have got to take that claim seriously. Their claims, of course, have not proven to be accurate in the past. Having said that, that is such a big deal. It is such a gamechanger. It is such a region changer that you cant sit back and not take that seriously. Kimjongun, is he rational . Youve studied the intelligence reports, youve looked at this young leader of north korea. Is he rational . No. So what does that mean, no . Well, he does things that just defy what a psychiatrist sitting here would say is appropriate under the circumstances. The kinds of things that hes doing, youd wonder whether they have a death wish. But to push the envelope the way theyre pushing the envelope, to raise the kind of flags that they raise and do the provocative things. I mean they do intentionally provocative things that at some point in time theyre going to push that envelope too far and who knows whats going to happen. And theres still almost 30,000 u. S. Troops along that dmz that separates north and south korea. Thanks for joining us. Glad to be here. Much more coming up. Were checking the republican race for the white house. The democratic race for the white house. Theres new information coming into the situation room right now. Stand by. Heres the plan. You want a family and a career, but most of the time you feel like youre trying to wrangle a hurricane. The rest of the time, theyre asleep. Then one day, hr schedules a meeting with you out of the blue. And its the worst 19 minutes of your career. But you dont sweat it because you and your advisor have prepared for this. And when the best offer means youre moving to the middle of nowhere, the boys say they hate the idea. But you pretend its not so bad. And years later at thanksgiving, when one of them says what hes thankful for most, is this house, you realize you didnt plan for any of this you wouldnt have done it any other way. With the right financial partner, progress is possible. Youto get the help yourefar looking for. Thats why at xfinity were opening up more stores closer to you. Where you can use all of our latest products and technology. And find out how to get the most out of your service. So when you get home, all you have to do is enjoy it. Were doing everything we can to give you the best experience possible. Because we should fit into your life. Not the other way around. As the president ial campaign moves on to new york state, lets bring in rebecca berg, National Political reporter for real clear politics, cnn political commentator and democratic strategist, hilary rosen. Cnn political commentator s. E. Cupp and our senior legal analyst, jeffrey toobin. Guys, thanks very much. S. E. Take a look at this new Monmouth University poll. New york state republicans, its a closed republican contest in new york, 13 days from today. Trump is at 52 , kasich second place 25 , cruz third place 17 . That 52 number is significant because in new york state, if you get more than 50 , its winnertakeall, thats all 95 delegates. Right. If trump can hold on to that lead. Are you surprised hes doing that well in his home state . Yes and no. Donald trump has a very uncomfortable relationship with new yorkers in new york city. That sounds insignificant but its really half the population of the state is in new york city. You know, hes not beloved there. But he is, i think, doing very well in those rural, manufacturing counties upstate, out west, up north where youre from where i went to college. Hes doing well up there. If he gets all 95 delegates in new york state, that loss he had in wisconsin, is that in the Rearview Mirror then and he moves on and has the momentum. Leaving wisc