From abc news, this week with George Stephanopoulos begins now. Good morning. What some called a summer fling still going strong, donald trump drawing record crowds. Hes going to join us live in a moment. We begin with that brewing intrigue on the democratic side. Vice President Biden calling popular star Elizabeth Warren to washington for a secret meeting. Jonathan karl tracking the latest. Jon, this is the strongest sign that biden is taking a serious look at this race. Reporter it sure is. This is a meeting between the two democrats who could potentially cause the greatest threat to Hillary Clinton if either one of them decided to one. Warren has emphatically ruled out running. Biden has considered it. An initial boost among base democratic voters than support from warren. Warren, by the way, has been decidedly cool about Hillary Clintons campaign, just listen to this clip from a recent interview with wbz in washington. Was it a mistake for your party to anoint her. I dont think anybodys been anointed. Biden clearly seeing an opening with that lukewarm comment. Reporter absolutely and especially in recent polls on the question of honesty and trustworthiness. Hillary clinton is suffering largely as a result of this email controversy. Look at this recent quinnipiac poll nationally. Only 37 say that they trust Hillary Clinton. 57 say, no. When you look at bidens numbers theyre almost exactly the reverse. A Strong Majority say that they find biden honest and trustworthy. The question is will he be willing to make that case if he rungs . What about timing. I talked to one supporter this week who said it looks like biden is saying hes about 60 40 to run and feeling some pressure to make an announcement soon. Reporter what biden himself is telling people hes got quite a bit of time and says the real deadline is that first democratic debate which is october 13th but one very close by, an adviser told me yesterday he believes that biden has to do much quicker. Has to make this decision much quicker. He start, of course, way behind. Has no national organization. No fundraising. If hes going to run he has to get moving. Jon karl, thanks very much. To the republicans and donald trump dominating another week. There he is in alabama late friday drawing the biggest crowd of his campaign. He is standing by live after tom llamas reports on his rival is countering the energy he has unleashed. Reporter if there was any doubt about if donald trump was dominating the 2016 race, take a look at his rock star reception friday night. A stadiumsize crowd, officials saying 30,000 on hand for the gop frontrunner. We need to have our borders. We need to make great deals. Reporter this rally in alabama a strategic choice for the Trump Campaign in an early primary state. A new poll shows him now beating jeb bush in florida. And the billionaires new immigration plan, the focus of the campaign. You look at chicago. You look at baltimore. You look at ferguson. You look at a lot of these places. A lot of these gangs and the most vicious are illegals. Theyre out of here. First day i will send them people those guys are out of here. [ cheers and applause ] reporter the question this morning, how does the rest of the field react . Some like jeb bush unleashing stov tough shots at trump. There is a big difference between him and i. Reporter the super pac trying to highlight his previous left leaning views flying this banner saying trump 4 higher tax, jeb 4 prez. Carly fiorina joining in, as well. Im not sure donald trump is a republican. Reporter the alternative to stay positive and put dr. Ben carson in that camp. I like people who are willing to say what they believe. Reporter then theres scott walker. On trumps plan to end birthright citizenship for undocumented immigrants he first agreed. You should end birthright citizenship. Yeah, to me its about enforcing the laws in this country. Reporter then backed off. Im not taking a position on it one way or the other. Reporter the trump juggernaut leaving top tier candidates on unsure footing. For this week tom llamas, abc news. Thanks to 2078 for that. Now the man himself. Donald trump joins us by phone. A lot to talk about but want to begin with that news about joe biden. Some news he may be considering the race. Meeting with Elizabeth Warren. May be getting in. Would he be a tougher opponent than hillary. I dont think so. I think theyre the say. Hillary may be damaged because of the email thing. You look at general petraeus, whats happened to him. How hes been destroyed and what he did was a fraction of what shes done, but i dont know. Assuming she could get over that which i dont know how she possibly can but assuming she could i would say it would be pretty equal. Lets talk about you right now and your new immigration plan of the youve been talking about on the stump all of your opponents having to react to it at this point. Jeb bush one of the people who reacted to it saying its going to cost hundreds of billions. From the American Action conservative group. They say the federal government would have to spend roughly 400 billion to 600 billion to address the 11. 2 million undocumented immigrants. Each immigrant would have to be apprehended, detained, legally processed and transported to his or her home country, in turn this would shrink the labor force by 11 million and reduce the gdp. First of all theyre wrong and jeb bush is a low Energy Person and wouldnt be able to do it. He says they come as an act of love. People coming and many of them you look at whats happening with the crime, many of them are really causing tremendous problems and they would be out really fast immediately, first day we start that movement we need a wall. We have to get a wall. We need Great Security and well have a wall that will not let people in, george, by the way, legally if youre legal, you can come in and well but let me press you on the cost right there, mr. Trump. Theyre saying 406 billion and would require Big Government apparatus to take everybody down. If you dont think those numbers are right how much will it cost and where will you get the money. Its costing us 130 billion a year and thats peanuts compared to what the real cost is, george. The way we have it now. You have so many illegals. We dont even know how many. I hear 11 million. I hear 30 million. The government has no idea. We have lost control of our country. Weve lost control of our borders. The government has no idea how many illegals are here. Ive been hearing 11 billion for five years then i heard 30. Nobody has any idea. So if theres no idea how are you going to round them all up, where are you going to get the money and the forces . Exactly how are you going to do it . What are the specifics . George, its called management. The first thing we have to do is secure the border but its called management and well get people back in, the really good ones and expedite it so they get back in so they can at least come in legally. You keep declaring how youre going to do it but you dont say how. Excuse me, george. You declare how youre going to do it but you dont say how. George, im telling you, its called management. You can do this and why can expedite the good ones to come back in and everybody wants that. But they have to come in legally. We have a country, we have to have were a country of laws. Were a country of borders. How can you have a country without a border. How can you have a country without laws . We have to do it and by the way what you said in your piece initially is the gang members. You look at the gang members in baltimore, chicago, in ferguson, these people, a lot of them are illegals. These are rough dudes and were going to get them the i understand you think its a huge problem but i dont hear specifics. My specifics are very simple. Im going to get great people that know what theyre doing. Not a bunch of political hacks that have no idea what theyre doing appointed by president obama that doesnt have a clue. I mean the man doesnt have a clue. People are walking across the border right now right in front of these great people we have. We have wonderful Border Patrol people. They can do their job but theyre not allowed to do the job. People are walking right into our country totally nobody even knows where they come from and walk past guards and are told not to do anything. Do you expect neighbors to start turning in neighbors . I dont know whats going to happen. I can tell you this, we have to have a country where a country of laws and we have to do it that way, george. Theres nothing we can do about it if were going to stand as a country. Theres no choice. We have no choice. We have to do it properly. Now, the candidates that are running against me like jeb bush, he has no clue. Hes never going to be able to do anything. Just look at whats happened with him over the years and whats happened with the last thing we need is another bush. But scott walker changed his mind now because he keeps going back to his pollster and his pollster says trump has a good idea, trump has a bad idea. Wait a minute. These people dont know what theyre doing. Theyre politicians. They dont know management. I get the best people and we will do it properly and humanely and get the good ones back in. I still havent heard the specifics. I know youll do that but ill move on right now. Scott walker Good Management and its called great people. You know, you talk about jeb bush just a minute ago and say hes a low energy guy. Talk about an article turned out in new york magazine. Gabriel sherman talked to a friend of you informal adviser and said you called him and warned that friend if im going down then bush is going down with me. Hes not going to be president of the United States. Did you say to that and that totally false. I dont know where this cops from. Im hearing it for the first time. I dont mind jeb bush. I think hes a nice person but i dont think he has the energy. You need energy for this job. You cant be soft and we need were a country thats in trouble. We owe 18 trillion. Its going to be up to 20 trillion in a very short period of time which is a very, very bad number when you hit over 20. And we need a person with a lot of smarts, a lot of cunning and a lot of energy and jeb doesnt have that. I think hes a very nice person. If he became president , if he became president , good luck. Its another bush. Its going to be the same old story. Let me ask i have nothing against jeb bush. I think hes a very nice person. Let me ask you more philosophical questions. Which failure in your career taught you the most . What did you learn from it . Ive had very few failure, george and if i do have a failure i try to make it a success. For instance, if a market collapses in the midst of a big construction job which ive had happen a number of times in a number of times i make those more successful and go back to the bank and fight with them, negotiate, do all sorts of things and have had deals that should have been disasters and would have been more most people and have become great successes. Actually more successful than if the market stayed good but i would say this more than anything else, you have to learn from tough times and ive learned a lot. You talked about scott walker just a minute ago and he drew a lot of headlines this week talking about his efforts to try and maybe outtrump you one from the new york times. Willing to step away in iowa walker adopts a trumplike stance. He aims to attract trump voters. In bid to Jumpstart Campaign walker tries to channel trump. How he plans to win back donald trump supporters. Are you worried . Im not worried because the state is really in trouble. I mean, its a fantastic place. I love the people of wisconsin but if you look at whats going, they have the 2. 2 billion deficit. They were supposed to have a surplus of a billion and have 2. 2 billion. Theres tremendous divisions throughout the state. The roads arent being built properly. He stopped a lot of work because he doesnt want to raise taxes so instead of raising taxes hes baltimoring to the hilt and the state is very overlevered and its number 38 out of the states. Its ranked number 38. Thats not good so, you know, im honored that he wants to copy me and hes a nice man. He was up i gave him Campaign Contributions when he was running for governor. I like him very much but his state has not performed well. We need somebody thats going to make it perform well. This country perform well and im the one to do it. I will do a great job and people are seeing that and its being reflected in the polls. I mean reuters came out with a brandnew poll yesterday, 32 for trump. I mean people want to see real change, not obama change. He used the word change. His change was a bad change. They want to see proper change. They want to see great change. They want to see our country be great again. Donald trump, thanks for your time this morning. Thank you very much. Okay, lets give scott walker a chance to respond. He joins us interest alabama. Governor, thanks for joining us. You heard donald trump say wisconsin is not performing. Your response . Well, using the talking points of the democrats. Those talking points havent worked in the past 4 1 2 years as we won three elections in four years, not just with republican support but with a huge margin amongst independents and even discerning democrats, why, we took a 3. 6 billion budget deficit and fixed it and did it while cutting tacks by billions of dollars. Our roads are better and our schools are better. Our tate is better. Same talking points the democrats used and didnt work in the past. They wont work now but the one thing i do want to clarify is i do think that there is some real frustration out there. Its why you not only see his numbers up but some of the other candidates who have not run for office before are angry at washington. Heck, im angry at washington and angry at my own Party Leadership who told us they would repeal obamacare and dont see a bill on the deck of the president obama of thats where the real frustration is. In the end if people want someone to fight but not just fight but win and get results and do it without compromising commonsense conservative principles im the candidate. Sounds like youre following through on what the Washington Post reported. A report on a Conference Call with your fundraisers who said you had to do better in protest, policy and passion. Is that right . Theres no doubt about it and want to see what they saw at the iowa state fair. Protesters warranted to try to come up on the stage and i said im not intimidated by you or the left or not intimidated by the special interests in washington and certainly not intimidated by the Big Union Bosses but early on our state assembly was great but a few of our state senators, some of whom had been in leadership did not want to do the big, bold refors we did and ill take anybody on including the leadership of my own party in washington if thats what it takes to do what is right for the American People. Taking on this question of birthright citizenship and the 14th a. M. Let me put the first sentence of it up on the screen all persons born or naturalized in the United States and subject to the jurisdiction thereof are citizens of the United States and of the state wherein they reside. Do you support the first line of the 14th amendment . Well, george, let me step back for a second and tell you an interesting story. Last month i was in a small town in iowa plainville and lived there as a kid and a family came from walk that to confront me. The father was upset i was 1 of the 25 governors that went to court and stopped the president and i told that father, in a very tense situation with the media all around including some from abc news and others out there, i told that father i felt bad for him and his family. I feel bad for families like that but i told them that this president had said i believe some 22 times, 22 times before he did what he did last november that he couldnt do it. He said that he was the president , not the emperor. He wasnt above the law and then he went out and changed the law by his actions. It took me and excuse me, 24 other governors to stop him in court. The problem here, we need to address the root problem, the issue which is we need a president who is going to secure the borders, not just give lip service to it like weve seen over the past couple of decades. Secure the border and enforce the laws. My point all week has been and continues to be as it was last month until we address those core problems well were not addressing the real issue and americans are right to be upset. I understand thats what you feel we have to address but simple yes or no question. Do you support that line of the 14th amendment . Well, i said the law is there and we need to ink force the laws including those that are in the constitution. My point is having this debate about anything else when we dont have politicians who are committed to actually securing the border and enforcing the laws which means very simply in our country everify. Make sure every employer ensures that the people working for them are legal to work in this country. That will resolve the problem were talking about and thats what ive been talking about. Youre not seeking to repeal or alter the 14th amendment . No, my point is any discussion that goes beyond securing the border and enforcing laws are things that should be a red flag to voters out there who for years have heard lip service from politicians and are understandably angry because they havent been committed to following through on promises. I hope the one thing people see in pie state, i had 100,000 protesters on a different issue and had all sorts of Death Threats and other abuse. People in my state will tell you whether they agree or disagree. One thing i do when i make a promise i follow flew. It is to truly secure the border and enforce the laws of this great country. Lets talk about health care and put out a plan calling for the replacement of obamacare with a series of tax credits for everyone who would be escalating over age. This is what one of rain shower rivals governor bobby jindal had to say. Scott walkers plan does create a new Entitlement P