Race, his new comments about vietnam veteran john mccains war record sparking a bipartisan backlash. Donald trump will join us live momentarily. First, Abcs Cecilia Vega on the new uproar. Reporter donald trump is at it again, unleashing his latest political firestorm on a new target, this time, john mccain. Hes not a war hero. Reporter trump in iowa going directly after the arizona senator and former Navy Fighter Pilot who spent 5 1 2 years as a p. O. W. During the vietnam war. Hes a war hero because he was captured. I like people who werent captured. Reporter and the reaction from fellow republicans fast and fierce, nearly every gop challenger running for the white house firing back. When it comes to attacking an american hero, im going to call it out. I denounce donald trump for that. I was highly offended what donald trump said about john mccain and his years of sacrifice. Reporter democrats pouncing, too. There is nothing funny about the hate he is spewing. The insults hes directed a genuine war hero. Reporter senator mccain so far staying silent. But his daughter meghan took to twitter, saying shes horrified, disgusted. There are no words. This is just the latest controversy for the brash billionaire. Theyre bringing drugs, theyre bringing crime, theyre rapists, and some i assume are good people. Reporter mccain saying recently fired up the crazies that statement igniting this now very public feud. The controversy doesnt seem to be hurting the donald. The latest fox news poll showing trump surging to the front of the pack, and overnight, trump doubling down, saying once again, he will not apologize, saying im not a fan of john mccain because he has done so little for our veterans. And even the Republican National committee lashed out at trump saying, there is no place in our party or country for comments who disparage those who have served honorbly. Thanks very much, cecilia, and lets get straight to donald trump, who joins us right now on the phone for his first interview since those controversial comments. Thanks for joining us, mr. Trump, do you owe john mccain an apology . No, not at all. Actually if you look at Cheryl Atkinsons report last night, it was fine. She thought that the press was covering me very, very unfairly and she stated that. And i respect her as a reporter. Very importantly, i got a standing ovation, the biggest ovation they had all weekend, by far. When i left the room it was a total standing ovation. It was wonderful to see. Nobody was insulted. What happened is, later on, the republican candidates, some of whom are registering 1 , and zero, and theyre extremely upset im leading the polls, and theyre extremely upset when the nevada numbers came out, too. Mr. Trump, lets go back to this issue of john mccain and youre talking about the Cheryl Atkinson piece, you said, hes a war hero he was captured, perhaps, hes a war hero. I want to read you a short bio of john mccain, he was shot down in 1967 on his 23rd Bombing Mission over north vietnam, he fractured both legs and an arm and nearly drowned when he parachuted into a lake. He was pulled out by north vietnamese who crushed his shoulder he was beaten, tortured and interrogated. He spent 5 of 1 2 years as a p. O. W. The north vietnamese offered him Early Release for propaganda purposes, he refused until every man taken before him was released. You do not think that this is a war hero, captured or not . I didnt say anything differently, and if you read and if you watch and take a look at what you have, i said nothing differently. Im very disappointed in john mccain, because the vets are horriblebly treated in this country. Im fighting for the vets. I have done a lot for the vets. I have been going around the campaign trail, theyre treated like third citizens. Hes done nothing to help the vets. Let me tell you this, what the commander, the veterans of foreign war said about your comments, for someone who never served a day in uniform to criticize the service and sacrifice of a combat wounded veteran is despicable. An insult to anyone who has worn the uniform. To all americans, an attack on one veteran service is an attack on us all. They apparently think you were criticizing mr. Mccain in saying that he was not a war hero. Maybe they dont speak to the same vets that i do speak. I go all over the country. I speak to vets, theyre having miserable times. It takes them six, seven days, just to get in a reception room, just trying to get in to see a doctor. Theyre treating horribly. Lets go back to your comments about john mccain its a scandal and john mccain has done nothing to help the veterans. I have covered veteran issues for many, many years. And by the way, this all started, martha, when we had thousands and thousands of people in phoenix, arizona, and john who, by the way, devastated by illegal immigration, something that im very proud to have brought to the forefront. We have thousands of people, and he said theyre all crazies. He called them crazies. Frankly, i think he owes them an apology. Let me talk about your language about him being captured. You say you prefer those who arent captured. What could john mccain have done not to be captured . People who fought hard and werent captured and went through a lot, they get no credit, theyre forgotten. People that were not captured, that went in and fought, nobody talks about them. Those are heroes also. I think people do talk about those people, as well. I dont think so. But what did you mean, you prefer those who arent captured . I w want to give them credit, they dont get the credit. John mccain gets credit, he was elected a senator, et cetera. In the report it said from cheryl, four times, i said, he is a hero, but, you know, People Choose little selective pieces, if you read what i say, or if you watch what i say, youll say that there was nothing wrong. But people who werent captured are also heroes, martha. I want to talk about you and your deferments, how many deferments did you actually get and what were they for . I believe you had student deferments and medical deferment. Like many other people during the war, student deferments. I had a minor medical deferment for feet, for a bone spur of the foot, which was minor, i was then entered into the draft, i was fortunate in a sense because i was not a believer in the vietnam war, that was another war that was a disaster for this country lives and money, its disgraceful with what happened with the vietnam war. But i was entered into the draft and i got a very, very high draft number. That wasnt until 1969. Excuse me thats right. You had many deferments before. Excuse me, i was entered into the draft lottery, if i would have gotten a low number. I got a number, i think it was 356, right at the very end. And they didnt get i dont believe passed even 300. I was not chosen because of the fact that i had a very high lottery number. You there seems to be a pattern, mr. Trump, when youre criticized or attacked, you often respond with namecalling on twitter and elsewhere. You even demean some peoples physical appearance. Is that something you would continue doing as president . Is that language beneath the office of president . When people attack me, i let them have it back. You say physical appearance, its my hair, people are constantly attacking my hair. I dont see you coming to my defense. You know, my hair is just fine. But i dont see you coming to my defense. If i Say Something about somebody else, yesterday, someone said john mccain was a smart man i said really he graduated last in his class at annapolis. People laughed when i said it. Im very disappointed. I understand john mccain. I backed his raise. He ran for president and lost to obama and let us down. Maybe thats why im leading in the polls, because people are tired of politicians and pollsters telling the politician exactly what to say. And believe me, this whole thing was brought up by a lot of the people that are competing against me currently that arent even registering in the poll. Because people are tired of them. Have you ever said anything that you regret . Yes, i have, on many occasions. Can you tell us the few of those . No, i wouldnt do that. Its not the appropriate time. Certainly i have said things that i could have held back, but not often. Surprisingly not that often. Certainly there have been some occasions. Youre not apologizing and youre certainly not pulling out of the race as some of your opponents have suggested . Of course, they would love have me to do that because im leading the pack. Im certainly not pulling out. Im leading in north carolina. Nevada, im way in the lead there. Interestingly, in nevada, i lead in hispanics by a tremendous the hispanics im way into the 30s with hispanics. If i get the nomination, if i run for president , i will win the hispanic vote, because ill be able to take jobs back from china, jobs back from japan and mexico. And everybody else thats ripping us off in trade and Everybody Knows that. I will win the hispanic vote. So, you think this will actually help you this is involving veterans and you heard what i said about those veteran groups, you still think this will help you in the polls . I believe i will do far more for veterans than john mccain has done for veterans. All talk, no action. You look at whats happening in our veterans, theyre being decimated. Okay so i will do far more for veterans than anybody. I will be able to build new hospitals, care centers. I will be able to help the veterans. John mccain has failed. Because all you have to do is take a look at the scandal at the veterans administration, the disastrous conditions under which our veterans have to live. And believe me, i built a small group a veteran memorial. In downtown manhattan. I know what it is to help people and i know what it is to help veterans. Thank you very much for joining us, mr. Trump. Lets bring in democratic president ial contender, former senator, jim webb. He attended the u. S. Naval academy. Senator webb, what is your reaction . Well, you know thats a lot to react to in a quick minute or two. First of all, i believe if donald trump had taken the opportunity to serve our country, he could have volunteered like a lot of people did, he would have had a different feeling the kind of things hes saying. Its one thing to talk about issues, but when youre talking about military service, youre talking about duty, honor and dignity. The comments he made a few weeks ago about mexican immigrants insulted a lot of our veterans. Some were inflamed with these comments. One of them wrote a letter to mr. Trump and said, any time you want, come back and talk to us to military service. Oh, you didnt go. I have known john mccain for a very long time. The daily courage that it takes and took, when people are prisoners of war, undergoing the uncertainties of whether theyre ever going to come home how badly injured he was just quickly on that, you heard what mr. Trump said, i said he was a war hero because he was captured, was he backing off a little bit . Or make it worse . Well, what he said, theres no excuse for it, and you know he can talk about veteran issues, we all care about veteran issues. And i said this goes to all veterans when they hear those sort of things, because youre talking about the dignity of service when you say things like that. Theres no way to take away the courage, the daily courage people like john mccain faced in that incarceration. Thank you for joining us, senator webb. The roundtable weighs in on trumps future. Now that developing story out of tennessee, new details on that suspect in that terror attack that left five Service Members dead. Investigators are working 24 7 to find out everything they can about Mohammad Youssuf abdulazeez. Who did he meet on his recent trip to jordan . I talked to numerous young men who supported the jihadist group. Now, officials want to know if see shooter had any links to isis. Heres senior justice correspondent pierre thomas. Reporter right now, the phones and the computers of abdulazeez are at the fbi lab in quantico, virginia, in an effort to find clues to his motive. He was not under fbi investigation or surveillance. The fbi want to know how he was able to operate under the radar. Theyre looking at his travel. Including a sevenmonth travel to jordan last year. Did he secretly go to other countries during that visit . They want to find out if he was using online aliases to view violent propaganda, or hide contact with overseas radicals. Law enforcement is asking is there more we could have done . Is there more that we should have done . Were there signs that he was exhibiting in the community that were missed . Reporter the fbi is under tremendous pressure with terrorism investigations in all 50 states. Involves hundreds of suspected radicals. Many thought to be isis sympathizers. Just one week before the chattanooga terror attack, the fbi director was sounding the alarm before congress. I cannot see me stopping these indefinitely. Reporter we dont know if abdulazeez has ties to isis, thats the group he fears is an imminent threat, because of its unprecedented social media campaign. Targeting smartphones, tablets and computers. It buzzes in their pocket, there is a device, almost a devil on their shoulder all day long saying kill, kill, kill. Reporter a daily sophisticated Multimedia Campaign using all of the advertising tricks. Primary isis focus, directives to kill u. S. Military and its working. In recent months, at least half dozen isis sympathizers. Plotting to kill u. S. Soldiers here at home. In march, in illinois a man was accused of conspiring with his cousin to kill american soldiers. In april, after he traveled to syria and was allegedly directed by isis to kill military personnel. Men like abdulazeez in their 20s, the difference is, abdulazeez got through. For this week, pierre thomas, abc news, washington. And joining us now congressman michael mccaul, chair of the Homeland Security committee. Whos calling the shooting an isisinspired attack. Chairman mccaul, can you tell us the latest they found out about abdulazeez . Well, the fbi is currently doing a forensics examination on his computer, his cell phone and his travels to jordan, which is right across the border from syria, so we have the threat of foreign fighters, but also we have the threat over the internet, which is a new threat thats out there, a new generation of terrorists, you heard the director talked about, these internet directives from syria to activate people in the United States to attack. And what they are saying is attack military installations and attack police officers. And what we saw was one of the most deadliest attacks on u. S. Soil against our u. S. Marines and an american sailor. This is the case were most worried. We have followed quite a few cases. We have over 60 cases that we have rolled over isis followers over the last year. Thats her more than one a week. We have investigations into all 50 states, what keeps us up at night are the ones that we dont know about, and im afraid that this case falls into that category. And to that point, you had a naturalized citizen, numerous trips to jordan a father who was on the terrorist watch list at one time, reports of abuse, online writing, shouldnt alarm bells have sounded . Well, its 20 20 hindsight. I command the fbi and homeland fur stopping so many terror plots in the United States. But we will be examining this case, i know the fbi is investigating, again, his travel, the father was on a watch list, was under an investigation that was closed, and well be looking at all those details, but, you know, this is, again, the new sort of threat thats out there over the internet thats very hard to stop. We have 200,000 isis tweets per day that hit the United States and this is one of those threats that the director talks about, getting so the chatter is so loud and the volume is so high that its a problem thats very hard to stop and disrupt in this country. Its something that we have been warning about over the last year. Unfortunately, it took place in chattanooga. Martha, if it can happen in chattanooga, it can happen anywhere, any time, any place. Thats our biggest fear. Mr. Chairman, you say 20 20 is hindsight. But, Tamerlan Tsarnaev had a background that should have raised alarms. Have we taken more measures since the boston bombing to stop or track someone like this . Of course. One of the biggest critics of the way that was handled, that particular case, we saw it fall through the cracks, you know, this is one well be conducting oversight and examining what happened, but, again, when were stopping like we did the fourth of july plot that was imminent to blow up military at fourth of july parades, when stopped at garland. We arrested over 60 isis over the last year, again thats more than one per week, this is a very difficult counterterrorism challenge in the United States. And i met with the generals that conduct the war on terror and you know what, i think we need to take the fight over there a little stronger and we need to hit these guys, these cyber commanders that are sending these internet directives out to attack, attack, attack in the United States. Chairman mccaul thank you very much for joining us. Well be right back to look at these soft targets, military recruiting centers, even cruise ships and shopping malls, are we doing enough to protect them . This week with George Stephanopoulos brought to you by hp. Push your enterprise and you can move the world. But to get from the old way to the new youll need the right it infrastructure. From a partner who knows how to make your enterprise more agile, borderless and secure. Hp helps business move on all the possibilities of today. And stay ready for everything that is still to come. What do you got to offer us today . 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