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Sixteen Killed in Hot Air Balloon Crash in Texas; Federal Officials Investigating Clinton Campaign E-mail Hack; Donald Trump's Ties to Russia; Days Away from Rio Olympics; CDC Confirms Zika Cases in South Florida; Tim Kaine Speaks in Pennsylvania Aired 3-4p ET

Aired July 30, 2016 - 15:00   ET

THIS IS A RUSH TRANSCRIPT. THIS COPY MAY NOT BE IN ITS FINAL FORM AND MAY BE UPDATED.

(COMMERCIAL BREAK)

[15:00:11] POPPY HARLOW, CNN ANCHOR: Hi everyone. Top of the hour. I'm Poppy Harlow in New York. And we are following breaking news right now out of Texas.

A terrible accident that has left 16 people dead, the sudden fire and crash of a hot air balloon near the town of Lockhart, that's about 30 miles south of Austin.

Local and federal first responders are on the scene right now. The sheriff's office has confirmed there are no survivors of those 16 people who were on board. The balloon went down this morning shortly after 7:30 a.m. local time.

Our Ed Lavandera is in Dallas at the latest. You look at this in extremely high loss of life. The number of fatalities makes this the deadliest hot air balloon crash ever in the United States. I know its early hours here. But are they saying out of this point what cause and why it went down?

ED LAVANDERA, CNN CORRESPONDENT: Well there has been no official cause made. And that is a ruling that will be made by NTSB investigators as they begin arriving there on the scene and beginning their investigation essentially as an official for that organization said a while ago, essentially treating this almost as a crime scene. As they photograph and collect evidence there from the scenes. That's an extensive process.

However, we are hearing from a law enforcement source here in Texas saying that if you look close at those pictures in the video image from there, you'll see a long line of power lines in that area. And that perhaps it appears at this point that the balloon made contact with those power lines igniting the fire there before it crashed to the ground. So, obviously those power lines will play a significant role and a big part of this investigation. They're trying to figure out exactly how this hot air balloon might have come in contact with those lines and why and that sort of thing. So, that's one of those key pieces of evidence that investigators will be looking at towards.

HARLOW: And Ed in a moment we're going to speak with someone from the NTSB, try to get some more information about what could have caused the 16 people. What do we know about the victims, anything at this time?

LAVANDERA: No, at this point, no, we are waiting to hear, you know, just exactly who was on board, you know, 16 people, it's not exactly clear do -- did everybody on board that this was just a large group, one large group ...

HARLOW: Right.

LAVANDERA: ... people who knew each other or was it a combination of smaller groups of, you now, maybe two or three friends who had gone on this hot air balloon ride on this early morning ride. So, we're still waiting to hear those kinds of details and the personal stories of just who was on board this hot air balloon.

HARLOW: Absolutely. What a tragedy. We're waiting for a lot more as you just heard from Ed. Ed, thank you so much. Stand by of us because we do have this statement now coming to us from the governor of Texas, Greg Abbott writing, "Cecilia and I, extend our deepest condolences for all those who've been affected by today's heartbreaking tragedy. Our thoughts, our prayers are with the victims and with their families as well as the Lockhart community." He goes on to say, "This investigation into the cause of the tragic accident will continue and I ask all of Texas to join in praying for those lost."

With me now, Rene Marsh, she's our Aviation Correspondent and Christopher O'Neil is also with us, he's Director of Public Affairs for the NTSB which is on the ground there, investigating.

Chris, we just heard what Ed said about the possibility there that this balloon collided with some power lines causing a fire bringing it down. Is that official?

CHRISTOPHER O'NEIL, DIRECTOR, PUBLIC AFFAIRS AT NTSB: Well, from the NTSB's point of view, we're very early in our stage of the investigation, we're gathering information and evidence, such far too early in the process to begin speculating about sequence of events or any causes of the accident.

HARLOW: All right, what about weather? I mean looking at these images the weather looks clear there. Was there any concern about the weather? I assume they wouldn't go up if there was.

O'NEIL: Well again, part of our process is looking at all of the contributing factors, all of the circumstances surrounding an accident. And so, weather conditions, wind conditions, speeds, direction, all of the things that are present at the time of the accident leading up to the accident. Those are all the facts that we seek to gain through our investigation.

HARLOW: Sixteen people in this balloon. You know, for an average person like me, that sounds like a lot. Is that a lot?

O'NEIL: It's my understanding that that is the maximum number of passengers allowed under the federal regulations governing those operations. HARLOW: And how do you go about investigating this? What are the first things that your team is going to do on the ground there? Obviously, you know, first of all they're taking care of the victims, notifying family members. But then as they try to decipher what caused it, what steps are they going through?

O'NEIL: So certainly we want to get on scene, we want to have evidence preserved, document that evidence, there will be gathering of witness statements, we'll try to gather any imagery that's available, video and photos of the accident site or accident as it occurred. We interview people involved with the company. And we will strive to gain all of the information and data and evidence that we can while we're doing our field work for the accident.

[15:05:21] That field work usually last several days. When the field work is completed, all of the data and the analysis and all of that information brought back to our headquarters at D.C. and we'll analyze that information.

About 7 to 10 days, after a completion of field work, preliminary report is released. And that's basically a snap shot of what facts do we know at that point in time. The preliminary report doesn't contain probable cause, doesn't speculate as to contributing factors, it's simply a summary of what we have learned at that point in time.

HARLOW: All right, standby for me if you can, Christopher. Thank you for that.

I want to bring in Aviation Correspondent, Rene Marsh. Rene when you look at the regulations for operating these balloons, what kind of restrictions, regulations are they under? What kind of training do pilots need to have?

RENE MARSH, CNN AVIATION CORRESPONDENT: Well, we do know that the FAA is very much a part of the regulations when it comes to these hot air balloons. And I want to add on to what your NTSB your last guest was saying, I mean one of the things that they are going to be looking at in this investigation partly is the pilot, you know, they'll look at the couple of considerations. They'll look at was this pilot error or was it a mechanical issue that led to whatever went wrong there.

So, you know, besides the pilot and pilot's, they look at the maintenance records of the balloons and also want to know was there something wrong with the mechanics of this thing. So, those are all of the issues that not only the NTSB or the FAA will be looking into, you know, where all of the regulations being followed at the time. But the NTSB will be the lead in trying to hammer down exactly what caused this.

And as we have been reporting, Poppy, you know, there are these reports of this fire possibly on board before this crash happened. And while we don't know and it is too early to know what caused it, you talk to anyone who knows about flying a hot air balloon, and they will tell you that a fire on board is probably one of the most dangerous situations, the only way to escape is essentially jumping over board. And as you have people jumping over board, the balloon makes it lighter and makes it even more dangerous because it flies even higher, Poppy.

HARLOW: Right.

MARSH: So, we do know that this fire did break out on board according to the FAA. But again, we don't know the sequence of events.

HARLOW: Rene, thank you for the reporting, I'll let you get back to it. I know you're in the midst of talking to your sources, Christopher O'Neil with the NTSB, good luck to you and your team down there, we appreciate it. Thank you so much in this.

Of course as this develops and we learn more in the hours ahead, I will bring them to you. But again 16 people lost, mass fatality situation there in Texas.

A lot ahead this hour, federal officials investigating a hack involving the Clinton campaign. Also Donald Trump going all in.

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DONALD TRUMP (R), PRESIDENTIAL NOMINEE: I'm taking the gloves off, right? Yes. I'm taking the gloves off.

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HARLOW: The general election race heats up with the battle for those critical swing states. Will they go blue, will they go red? And which one matters the most on the road to the White House this time around?

Also, Bernie Sanders supporters making themselves heard all week, even booing Hillary Clinton during her acceptance speech on Thursday night. She wants to win them over. The question is, can she?

All of that straight ahead, stay with us.

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[15:12:05] HARLOW: All right, 101 days, that is all that stands between now and Election Day. And in this race, that has already been full of surprises to say the least, here is another one. Federal officials now say they are investigating whether a computer program used by the Clinton camp was breached, possibly as part of the same cyber attack that led to those embarrassing DNC e-mails being linked online last weekend. Here's how the campaign responded, the Trump campaign saying, "This seems to be a problem wherever Hillary Clinton goes, hopefully this time there wasn't classify or top secret information that puts American lives at risk." That is a clear reference to Clinton's e-mail scandal involving the private server that she used.

So this for the Clinton campaign is a very busy weekend. They're on a bus tour right now to the battleground states of Pennsylvania and Ohio, part of a fight to win over white working class male voters, voters that Donald Trump did so well with during the primary season.

CNN's Senior Political Correspondent, Brianna Keilar, part of the caravan following the Clinton bus she joins me now on the phone.

Let's talk first about this hack, right. The Clinton camp is going along ways to make a very clear distinction here between what was hacked and what was not hacked, right.

BRIANNA KEILAR, CNN SENIOR POLITICAL CORRESPONDENT: That sure they are. In fact they put out a statement yesterday, Poppy, and then they put out other one to add even more clarity to that. You said the DNC hacking, these e-mails were breached and that they will released by WikiLeaks.

The campaign wants to be very clear that what the issue is, is a voter analytics issue

(OFF-MIC)

KEILAR: ... submission including ...

(OFF-MIC)

KEILAR: Even though of course that's still very alarming, this is still a hacking.

(OFF-MIC)

KEILAR: They just want to be ...

(OFF-MIC)

HARLOW: Right. Hey, Brianna, I'm sorry but the phone is cutting out. So we're going to try to get Brianna reconnected and get more from her from the bus that what's happens when you're on the bus. We've all been through it. So Brianna we're going to try to get her back on the line.

As we do though, let's bring in the political panel talk about all these to hack and the swing state bus tour.

Joining me now, Ron Brownstein, the Senior Editor of the Atlantic. The Washington Post Columnist Josh Rogin and South Carolina's Former Lieutenant Governor Andre Bauer, a Trump supporter, thank you guys all for being here.

Let's first begin Ron with the hack right. I mean that this is not good optics no matter that distinction of Brianna was explaining which is the Clinton camp has said, "Look, no e-mails were hacked, this is just an analytic server basically use to analyze voter data not e- mails."

Either way it's bad optics, isn't it? For the Clinton camp when your dealing with her own e-mail issues and the private server. How do they get around this one?

[15:15:03] RON BROWNSTEIN, SENIOR POLITICAL EDITOR, ATLANTIC: Look, I think her own e-mails is a major issue, has been a major issue and will be a major issue in this campaign. She's clearly taken on a lot of damage because of that. But I don't see this as part of that. I mean I think looking at the partisan implications to this is really missing the forest for the trees. I mean the -- I think the core issue here is as John Brennan the CIA director said yesterday in Aspen, that we appear to have foreign actors who were trying to manipulate an American election.

And, you know, all of the national intelligence officials are saying the clear indications that this is Russia -- Russian intelligence services, you know, pursuing a systemic attack on institutions of the Democratic Party. I don't think we know whether they're doing this to help Donald Trump or whether they're simply want to throw the election into soon degree of chaos.

But either way I think the core question here is a national security question of what are the implications and how do we respond to this extraordinary escalation of hostilities if in fact it is proven that there are Russian intelligence are directly trying to manipulate the results of our election for whatever purposes they have in mind.

HARLOW: All right, I also want to bring Hilary Rosen in here. She's a CNN political commentator, also Hillary Clinton supporter.

Hilary when you look at this, and I want you to listen to what the founder of WikiLeaks, Julian Assange said about this specifically to our Anderson Cooper last night and then get your response on the other side.

Sounds like we don't have it. We have it.

(BEGIN VIDEO CLIP)

JULIAN ASSANGE, FOUNDER OF WIKILEAKS: We have more material related to the Hillary Clinton campaign. It is correct to say that. We're also is very precise, I think in the reporting a statements, which are always very precise. And yeah, those are extremely interesting and we will see what will become of them.

(BEGIN VIDEO CLIP)

HARLOW: So Hilary, he said we have more material related to the Hillary Clinton campaign. As a Clinton supporter, the notion that that information could drop at any time, how much does that concern you?

HILARY ROSEN, CNN POLITICAL COMMENTATOR: Look, I'm not concerned about the content because, you know, political campaigns have on both sides of down have the same kinds of discussions. What I am concerned though about is what Ron was just talking about, is this just unbelievable violation of our systems of our political system.

And, you know, what Julian Assange didn't do the initial infiltration although the fact that WikiLeaks exists seven outlet to distribute it doesn't help. But the people who are infiltrating these campaign systems and these political systems are doing it for long term political gain and that is scary.

You know, I think back and Ron will remember this to the 2000 gore campaign where the Chinese government was discovered to be finance -- trying to finance multiple events. And so people are saying that the Chinese were trying to buy serf dishes influence into our government. Well that was before all of these technology existed.

So, you know, we know that, you know, there are other ways to infiltrate the government, other ways to have impact on the political outcomes, today because of technology. It's very frightening.

HARLOW: So let me bring Andre in here as a Trump supporter because Andre some have pointed at this and said, look, this is Russia trying to meddle in the U.S. election and trying to help Donald Trump. That Donald Trump tweeted this week I have no association with Russia. I mean he's clearly trying to draw the line. But he's also said them flattering things about Vladimir Putin in the past and he tried many times to build Trump tower in Moscow, et cetera.

Say what you will, but is this bad optics for your candidate? Does he need to come out more forcefully against this?

ANDRE BAUER, SOUTH CAROLINA'S FORMER LIEUTENANT: Well I think the Democrats have done a majorly and good job of trying to pin it -- pin him to it in someway. Look, a couple facts most advance countries spy. We do it, other countries do it as an American I'm concern about it. But I've been told if the Russian government were doing this, they are so good that we would -- they wouldn't leave a trace that we even knew they got in there.

And so who knows really who's doing it who knows what for what purpose. I mean the opposition could say could help from doing and say where in and only throw nuggets that they wanted to know and say hey the Trump campaign is the one really doing this. So who knows ...

HARLOW: But what I'm asking is, do you think Trump should come out more forcefully against it? Do that help?

BAUER: Well he said, "Look, I have nothing to do with it and if you want start connecting dots the Clinton foundation took $500,000 in speaking fee for Bill Clinton." Bill Clinton got a personal call from Vladimir Putin.

So there's plenty of dots to connect on the other side. I think as Americans we should be more concerned to do everything we can to protect the all data that we have in this country.

HARLOW: All right I want to move on and get Josh in here. And let's move on to the important bus tour of these swing states of Pennsylvania and Ohio.

Josh, so you pointed out that Kaine and Clinton are using this phrase, "Make it in America," as they go through this critical swing states. How tough of a sell though is that for Clinton specially the fact that she was pro-TPP pro-trade called TPP the gold standard before she flip on it?

[15:20:14] And frankly because everyone knows that a lot of manufacturing jobs that have left those states are not coming back. How does she walk the line honestly with the voters and yet sell this made in America pitch?

JOSH ROGIN, THE WASHINGTON POST COLUMNIST: Yeah, Poppy, I think it's a very though sell for Clinton and Kaine as they tour Pennsylvania and Ohio this weekend by focusing on the fact that Donald Trump has been responsible for out sourcing they can sort of draw hypocrisy between what he saying and what he's done. On the other hand, the polls show very clearly that Trump is up at least 5 points on when it comes when voters are ask to, who do you trust on the economy.

And when it comes to middle class or low class, white males it's like 30-something points, right? So, it a big health decline for her. What they've done is they've come up with this 37-point economic plan, right. Basically involves about a trillion dollars of new spending and infrastructure and making college more affordable, taking care of families so that they can go to work and train for higher paid jobs. It's very complicated, all right. The problem they are facing is that it's too complicated and when Trump goes in and he said trade bad and manufacturing is coming back. And don't worry I'm going to take care of it. That resonates more with these types of voters. So, she's trying very hard to play out a detailed policy. It may be too detailed. And she may be to what far behind and make that background.

HARLOW: I think its interesting Ron, I mean you Ron, you wrote about this in your column, the Atlanta again. And you said let me quote here. Does the Democratic Party open to all immigrants races, gender and sexual orientation have enough room for less educated white voters. Explain that?

BROWNSTEIN: Yes, well look I mean in the Democratic Party has been losing white voters without a college education for a very long time and they managed to win the popular vote in five of the past six elections. Despite that but that doesn't mean you can lose by infinite amounts and still win the election. I mean they built coalition that is centered on millennial, non-white voters and socially liberal college educated whites. And I think that I think we all agree was the principle target of the Democratic convention over the four days. I think, several analysts have noted that the biggest blind spot and it wasn't that much either reflected in the speaker or few shared ground. But not that many speaking directly to those white working class voters for Donald Trump has been strongest through the primary.

Pennsylvania and Ohio are different though. Ohio may be the single toughest state to hold among the states that President Obama won in 2012 with Hillary in part because it tilts so far towards those non- college white voters.

But in Pennsylvania, it's a different story it is, you know, in Pennsylvania it bigger share the vote are college educated white collar white voters where Donald Trump is struggling more than any republican -- no Republican nominee in the history of polling has lost college educated white voters going back to 1952.

He is consistently trailing among them, those kind of voters in suburbs of Philadelphia make Pennsylvania a much tougher hill for Donald Trump on Ohio. If he climbs Ohio and doesn't get Pennsylvania, he's still looking, you know, kind of behind -- he is still looking uphill at that point.

HARLOW: And that's why you called Pennsylvania more critical for Clinton than Ohio. Before we go Andre, we want your take on this. Today a little earlier today, Donald Trump tweeted about the debates. He's not happy for the debate schedule as usual Hillary and dems are trying to rig the debates. So, two are up against major NFL games same as last time with Bernie, unacceptable.

Andre as a trump supporter, here's the thing, there's a bipartisan group that comes out with this debate schedule and that Democrats and Republics a year ago, a year ago before we knew who the candidates were. So, how do you square that?

BAUER: Well, I can understand his frustration because the very people to be watching these football games are the very voters he's going after.

HARLOW: But he is calling it rigged. There's a difference between frustration and rigged. He's saying this is against him.

BAUER: Yes, I don't know his perspective on that, I didn't talk to him. But, I can see where his concern would come from because the voters that they're fighting over tending to go towards him will be watching football games and they're going to have to compete with that.

HARLOW: Hilary Rosen, final thought?

ROSEN: Final thought, plenty of Democrats watch football games and it's worth noting that the debate schedule that was up some concern last year actually had the highest rated debates in Democratic history.

So, people are going to be interested in these debates. They're going to be interested in and watching how Hillary Clinton and Donald Trump square up. She is full of solutions and he is full of hypocrisy and despite Josh's view that it's too complicated for the American people to understand, I think they will.

HARLOW: All right, well, you know what NFL games are must see T.V. I think these debates are definitely must see T.V. as well.

Thank you all Ron, Josh, Hilary, Andre stay with me.

[15:24:46] Program note for you tomorrow morning, our very own Jake Tapper sits down with vice presidential candidate, Tim Kaine that's 9:00 a.m. eastern only here on CNN. Don't miss a quick break. We're right back in a moment.

(COMMERCIAL BREAK)

HARLOW: All right, you're looking at live pictures there. The group gathered in Johnstown Pennsylvania, at Wire Technologies. Hillary Clinton and her husband the former President Bill Clinton touring at the factory right now, part of this multistate bus tour along those swing state of Ohio and Pennsylvania where they have specifically set out to go places where things are made, trying to make a play for those white working class voters there in Johnstown, Pennsylvania, much more on that in a moment.

But meantime Donald Trump making a few jaws drop, more than a few days ago when he appeared to challenge Russian computer hackers to try to find Hillary Clinton's 30,000 deleted e-mails.

(BEGIN VIDEO CLIP)

TRUMP: Russia, if you're listening, I hope you're able to find the 30,000 e-mails that are missing.

(END VIDEO CLIP)

HARLOW: That comment poured fueled on Democrat's fire who say comments like that make Trump unfit to be president. Trump though fired back and said he was just kidding.

(BEGIN VIDEO CLIP)

TRUMP: I obviously was being sarcastic. In fact, the people in the room were laughing and found it very funny, everybody knew that.

(END VIDEO CLIP)

HARLOW: So, there's a context here that's really important. Donald Trump has made numerous comments about Russia and his respect for President Vladimir Putin. So, we want to know what exactly his relationship with Putin and with Russia.

Our Jim Sciutto here's more.

(BEGIN VIDEO CLIP)

[15:30:03] TRUMP: Wouldn't it be nice if we actually did get along with Russia?

JIM SCIUTTO, CNN CHIEF NATIONAL SECURITY CORRESPONDENT: Donald Trump trading compliments with Russian president and U.S. adversary, Vladimir Putin.

TRUMP: When people like me, I like them, even Putin.

SCIUTTO: Their relationship now under new scrutiny with U.S. officials now saying it is likely it was Russia that hacked 20,000 e-mails from the Democratic National Committee.

WikiLeaks released the e-mails on the eve of the Democratic Party convention. The timing raising questions about whether it was an attempt to influence the U.S. election, perhaps in Trump's favor.

Director of National Intelligence James Clapper told us that while it's too early to say with certainty it was Russia. The Kremlin does have an interest in undermining the U.S. political process.

Is it your view that Russia has the intention of -- if not influencing this election, undermining confidence in the U.S. political process?

JAMES CLAPPER, DIRECTOR OF NATIONAL INTELLIGENCE: They see a U.S. conspiracy behind every Bush. They believed that we are trying to influence political developments in Russia. Their natural response is, is to retaliate.

SCIUTTO: That is a very serious concern for the U.S. government.

CLAPPER: Was this just to stir a trouble or was this ultimately to try to influence an election? And of course this is a serious proposition.

SCIUTTO: When asked for Erin Burnett, Trump's campaign manager discounted the theory that Russia leaked the documents to help put Trump in the White House.

PAUL MANAFORT, TRUMP CAMPAIGN CHAIRMAN: It's just observed, because I don't know anything about what you just said. You may know it. If you do, then you are to expose it.

SCIUTTO: In fact, Trump maintains that he has no connection to Russia, whatsoever. And CNN has not been able to find any current business operations there.

TRUMP: I have nothing to do with Putin. I've never spoken to him. I don't know anything about him.

SCIUTTO: But when he brought his Miss Universe pageant to Moscow in 2013, Trump said he spoke personally with Putin.

TRUMP: I was in Russia. I was in Moscow recently and I spoke indirectly and directly with President Putin, who could not have been nicer.

SCIUTTO: And now Trump's favorable comments about Russia has U.S. allies worry about whether the U.S. would defend them against Russian aggression.

CLAPPER: Such rhetoric armory (ph) bothersome to our foreign marketers, our foreign partners and I hear that from my counterparts.

Jim Sciutto, CNN, Washington.

(END VIDEO CLIP)

HARLOW: Jim, thank you so much for that.

Coming up next, we continue with politics and Bernie Sanders supporters they were loud and loyal until the end. You heard them this week at the Democratic Convention.

Is the battle lost for them or can Clinton still win them over? Can she get them to the polls to support her?

Next the youngest delegate at all of the DNC from Vermont will join me live, next.

(COMMERCIAL BREAK)

[15:36:04] HARLOW: Can you manage being a delegate at 18-years-old? Probably not but I'm going to introduce you to an 18-year-old Bernie Sanders supporter who played a very important role this week in Hillary Clinton's nomination.

(BEGIN VIDEO CLIP)

ASTRA O'LEARY, YOUNGEST VERMONT DELEGATE: How do you cast your 26 votes? Vermont passes.

(END VIDEO CLIP)

HARLOW: Vermont passes, those words from Aster O'Leary, the youngest Vermont delegate at the microphone on Tuesday night.

State part leaders that instructed her to pass when it was Vermont's turn during the vote for roll call, the move forced the Democratic Convention to circle back to Vermont at the end.

That allowed Sanders himself to personally and symbolically and unanimously support Clinton. Aster O'Leary joins me now live. Aster, thank you for being with us.

O'LEARY: Thank you so much for having me.

HARLOW: I know I can't keep you very long, right? Because you told us when we were booking you for the show you have to go to your job at the ice cream shop, right?

O'LEARY: Yes.

HARLOW: All right. So bosses, if you're watching, she's busy if she's a few minutes late, cut her some slack.

But in all seriousness, thank you for being with us.

I just want to wrap that moment was like, did you recognize the historical magnitude of that moment when you came to the mic and you said, Vermont passes?

O'LEARY: That whole moment was very, very surreal for me. I think it's just beginning to hit me now that I've had time to reflect on my experience at the convention, the historical significance of all that went down and I'm just so grateful that I had that opportunity.

HARLOW: It was very significant because by doing that, they circled back to you guys and Vermont is a state and Bernie Sanders unanimously supported Hillary Clinton.

I know you would have liked to see Sanders accept the nomination. But now that it is Hillary Clinton, are you on board with her?

O'LEARY: You know, I'm getting there. I mean I am very strong Bernie supporter. But I really appreciate how she's adapted aspects of Bernie's platform. And so I'm planning on supporting her in November. HARLOW: So you're one of many, many young voters, young millennials and even the generation younger than that that got on the Bernie Sanders train. That felt the burn this primary season. Do you believe that your peers in that group will ultimately support Clinton or do you see them staying home instead of casting those votes or supporting Trump?

O'LEARY: You know, of all the young delegates I met at the convention, I can confidently say that none of them will be supporting Trump.

I think that we're all on same page as far as need to do all that we can to prevent Trump from taking office. And I think that voting for Clinton is the most -- is the best way to do that.

HARLOW: So tell me about the first time you met Bernie Sanders. What was that like and what was it about the 75-year-old man, senator for a long time. So if you talk about an established politician, he is one. What is it about him that appealed to you and so many other young Democrats?

O'LEARY: Well, the first time I met Bernie Sanders was actually when he came down to join our delegation for roll call. And so the first time I met him was on national television.

But before that, I think that just his integrity really inspired a bunch of young people because I'm speaking for my -- I can only speak for myself when I say this. But I really think that the establishment needed a revitalization of sorts and I think that Bernie provided that.

HARLOW: Let's listen to this. There was this moment that stood out so much from comedian Sarah Silverman.

Let's roll it.

(BEGIN VIDEO CLIP)

SARAH SILVERMAN, COMEDIAN: Can I just say, to the Bernie or bust people, you're being ridiculous.

(END VIDEO CLIP)

[15:40:02] HARLOW: What was your reaction to that? It's such a strong Sanders supporter. When you heard that, what did you make of it?

O'LEARY: You know, I honestly didn't know how I felt about that because a lot of other members of the delegation, you know, by Bernie or bust or where it not ...

(OFF-MIC)

O'LEARY: ... Bernie or bust, I personally have never been Bernie or bust because I really see the importance of party unity. But she's entitled to her opinion, I guess.

HARLOW: Yeah. It was interesting to see that sort of mixed response to that of course.

Aster, thank you so much for joining us, congrats to you on such a moment, one day you'll be able to tell your kids about it, taking to the mic at 18-years-old as a delegate. Thank you so much and go get to work at the ice cream shop. Thanks for being with us.

O'LEARY: Thank you so much.

HARLOW: OK, good to have you.

Coming up next, we're going to take you live to Rio this summer games, summer Olympics. Six days away. Are they ready? A lot of headaches plaguing Rio, we take you there live, next.

(COMMERCIAL BREAK)

HARLOW: All right, just six days until the summer Olympics officially begin in Rio. And the first South American games are still be set with a lot headaches, including polluted water, major construction delays and then there's this about a hundred Australian athletes and officials evacuated from their apartment in the Rio Olympic village after a fire in a parking garage.

[15:45:02] An official close to the investigation telling CNN the fire is being investigated for possible arson. On top of all of that, still major concerns about the spread of the Zika virus.

Let's go straight to our Brazil Bureau Chief, Shasta Darlington. She joins me live in Rio. And Shasta we've been talking about this for months and months. Now we're just days away.

The Australian team interestingly initially refused to move in to the Olympic village because they were concerned about the conditions, right?

SHASTA DARLINGTON, CNN BRAZIL BUREAU CHIEF: Exactly Poppy. So there is a bit of sad coincidence here if you will. They were rushed out of the building when there was smoke. Firefighters went in. And what they found was just a couple of card board boxes in the basement that had caught fire.

Now, the head of the Australian delegation herself thinks that it could have been a cigarette. But the bigger problem is that the fire alarm didn't go off. The fire alarm had been turned off because of construction in an apartment building next door.

So now the Australian delegation is asking that all workers be stopped from smoking, they pick up rubbish and put a fire marshall on each floor until they can get a fire alarm system back up and working, Poppy.

HARLOW: I mean, this is just one headache of many for the Olympics there. There's major concerns that the construction is not going to be ready. There's huge concerns about the Zika virus. You got the president of the country, Dilma Rousseff who's been impeached. So she won't even be leading it right now. Does it feel like from where you're sitting this country is ready for the eyes of the world to be on it?

DARLINGTON: Poppy, it does not feel like they're ready. But it does feel like they're getting ready to be ready if you will.

We're already seeing lines of people in front of the Olympic rings on Copacabana beach taking selfies. There is a bit of enthusiasm growing. But at the same time, that enthusiasm isn't translating into ticket sales, just to give you an idea, six days out there are more than a million tickets still left up for grabs. A lot of that has to do with two years of recession and all of the political chaos that you mentioned. But with the enthusiasm, again, so we're just beginning to feel it. Let's see if that can really translate into ticket sales for next six days, Poppy.

HARLOW: Yeah, a six days ago, a huge challenge ahead, no question.

Shasta Darlington, live for us in Rio, thank you, Shasta.

Coming up next we're going to talk more about Zika which we mention, is a major concern at the Olympics.

But looking here at home, health officials in Southern Florida right now, confirming fear over Zika that four people have now been infected by local mosquitoes. That means not bringing in the disease from Brazil per se but being infected at home in Florida.

How they are trying to stop the spread, a live report, next.

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[15:51:27] HARLOW: All right, you're looking at live pictures right now out of downtown Pennsylvania. That is an event where Tim Kaine, vice presidential candidate is speaking. You see our former president Bill Clinton and candidate Hillary Clinton right behind him, the Democratic ticket fresh off their Democratic convention and campaigning in those critical swing states of Pennsylvania and Ohio.

We'll monitor that for you. More live in just a moment.

Meantime I wanted to take you to South Florida. That's where officials are trying to zero in on the Zika virus, be more aggressive in terms of blood testing and mosquito spraying, why are they focusing on Florida? Well, because the CDC has now confirmed the first local transmission of the Zika virus by mosquitoes within the continental United States, those four cases in South Florida.

Blood centers there ramping up screening of all new blood donations. And officials are going door to door in two counties testing residents for Zika. This after four cases surfaced in Miami-Dade County and also Broward County.

Nick Valencia is there. He joins me now from Miami.

And I can't overstate the significance of the development that these are mosquitoes from Florida that infected people. These aren't people coming from Brazil into Florida already infected. That changes the game.

NICK VALENCIA, CNN CORRESPONDENT: It does, absolutely. This is a long been anticipated not just by the CDC but by Florida State Health Officials. They're trying to tamper any fears here in this area by underscoring that the state has done a lot to prepare for this moment.

They've been spraying in this area. Earlier this morning we saw Miami- Dade County going block to block to put insecticide in the atmosphere. They've also been trying to get rid standing water, trying to trap mosquitoes. It is important to note though, there is a myriad of ways to contract this virus. But state officials here, they do believe that these four who contracted a virus all from this Wynwood area. They got it by being bit by a mosquito.

Though we should mention, Poppy, that all those mosquitoes that have been trapped, none of them had so far been tested positive for the Zika virus. But a huge concern for public health officials, no doubt. Poppy?

HARLOW: So what are the people there telling you? I mean, I know you're later on speaking with the couple that is trying to get pregnant. Obviously they're concerned, right? But what about other people that aren't pregnant or trying to get pregnant? Because the big concern with Zika is what it does to unborn fetuses.

VALENCIA: The concern seems to be isolated to that group of people, either pregnant women or couples that are trying the get pregnant right now.

You know, you'd be surprised to learn that the majority of the people that we've talked to on the streets here in Wynwood they're not that concerned about it, tourists and residents alike.

And Just a while ago before coming on camera, I asked somebody who was walking on the street. You know, she was wondering why all the cameras were here. And we said, "Well, this is the news about the Zika virus being transmitted here." She said "Oh, that's it?"

So that sort of the reaction by in large that we've been getting from the community, TOURISTS here saying that this is not going to stop them from seeing Miami.

Of course state health officials hope that they have stopped the virus so far that it's just these four people. They will continue to go door to door to get those tests done, to make sure that no one else here has the virus. Poppy?

HARLOW: Yeah, of course, because there's no vaccine for it right now and there's no cure for it right now.

Nick Valencia, live for us in Miami. Thank you so much.

I want to take you back to Johnstown, Pennsylvania let's listen to vice presidential candidate, Tim Kaine. SEN. TIM KAINE (D-VA), VICE PRESIDENTIAL NOMINEE: And she's got just about the best life partner that you could imagine if you're trying to serve others. Please give a great round of applause to President Clinton.

You know, for all of us on stage, and frankly for anybody who's got their values straight, it's not about title. It is not about money. It is not about prestige. It's not about popularity. It's about what you can do to help folks out.

[15:55:13] And that's why I'm so excited to be here on this tour with Hillary, Bill and my wife, Anne. To -- for us to just be sitting on a bus shooting the breeze with Hillary and Bill Clinton, I mean I've got to tell you I'm still sort of pinching myself.

And yesterday we have a boy in the marines who deployed overseas earlier this week. And we were to -- and I know that this is a marine. We were able to get him on the phone and have him talk to our running mates. And man, that just blew him away. That's something that he felt so good about many time zones away.

But look, we're here because the convention was great. And Pennsylvania did a superb job. We think we know hospitality in Virginia. But Philly and Pennsylvania did a superb job.

But this is the part of the campaign I like best.