Now, it is being dubbed western tuesday. Theres a different name for each of these things. In the coming hours voters in arizona, uterus and iowa will have their say. On the eve of tuesdays electoral contest all five candidates appeared on cnn, republican frontrunner donald trump told wolf blitzer the u. S. Should rethink its involvement in nato. Were paying disproportion e disproportionately and frankly its a different world when we originally conceived of the idea and everybody got together. I think we have to reconsider keep nato but maybe we have to pay a lot less towards the nato itself. Trump is looking to extend his lead over cruz and kasich. Both insisted there is no chance they would consider becoming trumps running mate. The lie behind donalds campaign is he will stand up to washington. He is the system. Donald trump and Hillary Clinton are flip sides of the same coin. Donald trump has made billions buying influence in washington. Hillary clinton has made millions selling influence in washington. Are you open to being his Vice President ial running mate. I have zero interest whatsoever in this. Listen, if donald trump is the nominee, its a disaster. Hillary wins. There is zero chance i would be Vice President with either of them. Secondly, no chance, zero. Below zero, actually. The way hes presented himself to the country over the last many months, you know, calling mexican immigrants, rapists and criminals saying john mccain was not a war hero, being reluctant to denounce the ku klux klan and david duke and the list goes on and so for me, i think you have to take him at his word at how hes behaved and what he has said and if you do that, then i think people have questions that deserve answers. Democratic president ial candidate barnett appeared on cnn from Salt Lake City where he is campaigning ahead of tuesdays caulks there. He called for the u. S. To work with both palestinians and israelis on the middle east peace process. If we are going to have lasting peace, we have also got to work with the palestinians. The United States time and time again has looked aside when israel has done some bad things. I think, for example, that the growth of settlements in palestinian territory is not acceptable to me and not conducive to the peace process. Now, beyond speaking to cnn, all of the president ial hopefuls also spoke to one of the largest proisrael lobby groups in the u. S. On monday. Only sanders didnt attend saying his Campaign Schedule prevented him from doing so. But take a look at this. Donald trump continues to be Republican Voters top choice with the field narrowed to three candidates, the latest cnn poll shows what you see there, 47 of republicans support trump. 31 back cruz and 17 are fulling for john kasich. Weve gathered supporters for each of the president ial frontrunners here at cnn center. Aaron johnson a democratic strategist supporting secretary clinton and republican amy kramer is the chairwoman of Great America pac 2016 supporting donald trump. Welcome to you both. Thanks for being here. Great to be here. Amy, i want to start with you, because we heard from all five president ial candidates for the cnn special, and we heard john kasich say that republicans would go to the july convention, it will be an open multiballot convention. Donald trump said, no, he will have enough del toros to go to this. What is going to happen if they get to that convention and he doesnt get the nomination, what will he do then . Well, i think he is going to get the nomination. I think he will have enough delegates and joahn kasich is part of the establishments strategy to keep him from getting the delegates but how can joanhn kasich has won one state. Hard to think hell have an impact here. I think donald trump will have the delegates needed. I think hell wrap it up in california and go to the convention. What will he do if he doesnt. I cant speak to that because im not part of his campaign. I dont know what theyre thinking but i know that the American People will be very upset because if the republicans try to if they try to vote and change the rules before the convention, its subverting the will of the people and thats a problem. For all the division on the republican side of the fence you have a similar situation for the democrats. Barnett hasnt dropped out of the race, at half of the del toro count of Hillary Clinton but what about his supporters, they too are very enthusiastic about a bernie presidency, the democrats headed toward an issue at their convention . Absolutely not. I mean, its pretty much a done deal on the democratic side. Right now Hillary Clinton has a 800de 80 80 800delegate lead and trying to make sure we have good Public Education for our kids. Now, you got to be very careful in this election to not be arrogant like we are seeing on the republican side but continue to show grace and respect to the Bernie Sanderscampaign. It is true bernie has a voice and a great deal of people supporting him so what youll see when we get to our convention you will see a United Democratic party and well be ready to go on and take care of the republicans in november. Whats interesting, aaron, we heard from donald trump saying that Hillary Clinton and youre a Hillary Clinton supporter. Absolutely. She sdobts hadoesnt have thh to be president. How do you counter that, once if they do go headtohead and looking at a competition between trump and clinton, what will they discuss once the personal issues are out of the way . How will that go . Thats very disingenuous to say he would beat Hillary Clinton in a november contest. Every poll that ive seen, cnn released a poll today shows donald trump loses to Hillary Clinton if the election was held today. The challenge will be this, you announce him attempt for him to be port of a statesman when he spoke at the aipac and the most scripted messaged weve ever seen but the problem is weve had almost a year of just very divisive and destructive rhetoric from donald trump. What the Clinton Campaign will do is remind the American People this is a man who disrespects women, he doesnt want muslims and thinks theyre all terrorists and calls mexicans rapists an calls them criminals so this is the type of divisiveness hell have to be prepared to answer to the American People. She was the former secretary of state. She has the most Foreign Policy experience of anyone in this race. But look at the Foreign Policy right now. Its a mess. But you got this world is a mess. You got a guy like donald trump never held elected office. Thats a good thing. And switched his position three times when he asked does he support the palestinian and israeli truce of the government so basically he said he would be neutral then wednesday he said he would support israel and sdmress always been an israeli supporter. He has been despite many of the things you said the enthusiasm for donald trump on the republican side is huge. We have a cnn orc poll showing 70 are enthusiastic about donald trump and none of the other candidates have come close. Donald trump has this unique situation where hell come into the convention with the enthusiasm and probably the highehigh e highest delegate count and a series of violent events. How will he how should he control that and temper that heightened anger we see . Look, he has said he does not condone the violence. I dont think any of us condone the violence but the fact of the matter is there are some professional agitators out there doing this and theyre doing it intentionally because theyre afraid of donald trump. They are afraid of how high he is in the polls and, look, donald trump is speaking for millions of americans. He is having democrats, independents vote for him. Its across party lines and bernies candidacy shows this too, the American People are fed up with washington. It has become the ruling class versus the working class. And regardless of if Hillary Clinton wins or one of these republicans win, that are already in office, or have been in office, its still the establishment. So, and nothing is going to change, nothing is going to change. Theyre all run by lobbyists and thats what the its hillary too. Its hillary too. The problem with donald trump is this, he missed a unique opportunity to be a statesman and be president ial. He could have come out after we saw what happened in chicago where Peaceful Protesters were taunted, yelled, racial slurs and escorted out of the building. He could have repudiated those events, instead he landed his big plane in the next state and basically encouraged his supporters to be more and more radical but i want to go back thats not true. The point you made earlier, Hillary Clinton right now has the most votes out of any person thats running for president right now. She has 8. 6 million voters. Thats more than donald trump. Thats more than kasich. And people dont trust her. But to say that she has doesnt have momentum i think thats inaccurate. Again shes got the most votes. Its because of the super delegates and thats sub we have to wrap it here, amy kramer, thank you very much. Thank you. Aaron, thank you so much. For both of you, a lot to discuss. Definitely. On the final day of his historic visit to cuba u. S. President barack obama will deliver his human rights speech and raul castro hosted him at a state dinner and followed an awkward News Conference where the issue of political detainees came out . An activist said 20 dissidents were arrested monday but as jim acosta reports mr. Castro denies hes even Holding Political prisoners. Reporter its a sign that decades old enemies can one day change their tune. Thats the u. S. National anthem being played on cuban soil. As president obama joined the islands ruler raul cast to in havana to close out this final chapter of the cold war. No longer president and i dont have so many obligations ill have to come back. Reporter mr. Obama signed a book to remember shjose marti a said to begin respecting basic human freedom. We continue to have very serious differences including on democracy and human rights and president castro and i have had very frank and candid conversations on these subs. Reporter but castro had his own set of grievances, at the top the u. S. Embargo strangling the economy still stands but he did not answer the question on why his country holds political dresser prisoners. Translator give me a list of the Political Prisoners so i can release them. Give me the names. What Political Prisoners . Reporter the president is going around congress to weaken the embargo loosening travel restrictions on americans who want to see the island and bringing with them big Hotel Companys ceos who want to turn cuban mojitos no money. Jose for remember, i former political prisoner says the president s visit can give them a much needed push. Hes calling on the president to think of reagan. Mr. Gorbachev, tear down this wall. Reporter and demand that age old barriers start coming down in cuba. Translator we have to tear down many calls so that the cuban people can live with dignity. Reporter castro tried to hold up president obamas hand to show off their budding friendship but mr. Obama didnt seem to share the same enthusiasm. Next the president will deliver an address to the cuban people and meet with cuban dissidents. The white house says mr. Obama will once again call for an expansion of human rights in cuba and try to wind down his trip enjoying a pastime shared by both the u. S. And cuba, a baseball game between the Cuban National team and the Tampa Bay Rays. Jim acosta, cnn, havana. A u. S. Official says 53 prisoners were released after normalization talks. U. S. Deputy National Security adviser ben rhodes says the real issue is cuba does not consider its prisoners to be political. But washington believes whenever someone is detained for a n nonviolent political offense they are inherently unjustly imprisoned. Well have more on this coming up. President obama says u. S. Tourism will be good for ordinary cubans but not everyone is convinced. Thats next. 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[ pop, screech, doorbell rings ] boxed bulksize shopping delivered easy with no membership fees. Well now to a possible turning point in the legal saga between apple and the u. S. Government. They were set to face off in court tuesday, but the judge has postponed the hearing at the justice departments request. The doj has been demanding that apple unlock an iphone belonging to the San Bernardino shooter but apple has repeatedly refused now Officials Say an outside party is offering to open up the phone without the tech giants help. French and Belgium Police are looking for a new suspect in connection with the paris terror attacks identified as najim lashwahri they believe he traveled with salah abdeslam. Abdeslam was captured and they believe he was preparing for fresh attacks and had a Large Network of supporters helping him. We had reasons to be worried about that. I dont know if we will know what they want to two. What they wanted to do. That depends on the various statements we will have in the case. President obama is stressing the business benefits of american capitalism arriving in cuba. Benefits he says will reach everyday cubans. More americans coming to cuba means more customers for your businesses. More americans using the dollar will mean that they will spend more, as well. There will be more channels for you to import supplies and equipment. More americans will be able to buy your arts, craft, food, cuban origin software. But critics say the prosperity wont go any further than the cuban government. Republican president ial candidate ted cruz who is of cuban descent said the visit legitimizes a corrupt and oppressive regime. Joining me now to talk more about the impact of president Barack Obamas historic visit to cuba and what it means for the reena is jorge benitez, a u. S. National security expert in washington, d. C. Thank you, sir, for being with us. Thank you. Now, you are against the easing of restrictions against cuba and the normalizing of relations, why . I think there are several reasons for it. One, i think it is still morally wrong for us to be siding with the oppressive regime in havana and to providing them with political legitimacy through this kind of efforts. I also think its bad economic sense because, unfortunately, the castro regime is a deadbeat dictator. He does not pay his debts. He has no money to buy goods from other countries so instead he relies on debt. But he can continues to not pay them and he defaults on them. Hes defaulted on hundreds of millions of debts to mexico to the eu, to canada and because hes defaulted on so many of them, the cubas Credit Rating in the International Market is at the junk bond status. President obama says its time to change the policy that hasnt worked for decades and he put president raul castro on the spot by taking questions from reporters and insisting, mr. Castro do the same. Isnt that a move in the right direction . It also exposed the cuban leaders approach to Political Prisoners. I think it was very telling, though, that it was the American Press and the journalists that asked the hard questions about human rights to raul castro and it was not president obama himself who addressed this important issue. Isnt the fact this opening up, this maybe this legitimizing in a sense but the lifting of the embargo. We know that most people inside and outside cuba want to see this normalization. It should be good for the country, good for the people there and for the region. What do you say to them when they say we want to see this happen . I agree with you. It should be good for the people and for the region. But, unfortunately, what you have in cuba is corrupt trade, not free trade. The europeans, the canadian, the mexicans, 99 of the world trades with cuba but it trades with the castro government on the castro governments terms. The only one they allow. If the United States participates in this what would happen is for, say, example your wages were 100 a month, the Foreign Investors cannot pay you directly. Theyd have po pay the cuban government 100 and the cuban government would pay you in 100 cuban pace esos s