The party chair reseeping over leaked emails that show the dnc favoring Hillary Clinton over Bernie Sanders. Im with her. Hillary clinton and her new running mate now facing an uphill battle to bring the party together. I dont know anything about these emails. I havent followed it. Donald trump trying to capitalize on the divide as clinton makes her case to become the first woman in u. S. History to be president. Announcer live from philadelphia, pennsylvania, this is a special edition of Good Morning America, your voice, your vote, the Democratic National convention. Good morning, america. We are here in philadelphia for the Democratic Convention. Hillary clinton is going to make history here this week, the first female nominee for president of the United States. Of course, a lot of excitement here but also a lot of chaos in the wake of that email scandal. Democratic party chair Debbie Wasserman schultz announcing her plans to resign as Bernie Sanders supporters, they are here in force flooding the city protesting Hillary Clinton as a nominee and theres a new poll this morning and as expected trump getting a bump from last weeks convention. No question about that. Well get into all that but first breaking news, another deadly shooting at a florida nightclub. This time in ft. Myers. About 100 were at club blu for teen night when shots rang out, two killed. More than a dozen injured. It does not appear to be terrorism. Abcs Marci Gonzalez is there with more. Good morning, marci. Reporter good morning, george. Were told many of those victims are teenagers, still a very active investigation here with dozens of evidence markers here in this parking lot. Police still arent saying what led to this mass shooting or what the motive could be. Moments after midnight a teen dance party at the club blu bar and grill in ft. Myers, florida, ending in a hail of gunfire. Engine 13, possible shooting at club blu. Be advised were getting reports of multiple people. Reporter several rounds of ammunition being fired by two gunmen as clubgoers scramble to safety. At least two dead as many as 16 injured. Mostly teenagers. One kid got shot in the head. One kid got shot in the neck. We see people that got shot. They fell to the ground and then everybody kept running. Reporter First Responders rushing to the scene blanketing the club with yellow tape, tatiana holliman visiting an apartment across the street when gunfire rang out. Everyone was running through the apartment, getting behind it. Everybody was dugging down. When we heard the gunshot it sounded like it was two different guns. It was more than one shooter. The Club Shooting could be connected to two other shootings nearby overnight. And right now theres an active search just a few blocks away from here for possible suspects. We are told at least one person of interest is now being questioned. George and robin. A lot more question, okay, marci, thanks very much. Well stay on this all morning long. The state of florida has been through so much. Now we move on to the Democratic Convention kicking off. A new National Poll shows donald trump three points ahead of Hillary Clinton. As the democrats face an email Scandal Party chair Debbie Wasserman schultz announcing she is going to step down. Jon karl is here, has all the details for us, good morning, jon. Reporter good morning, robin. This is a shocking tart to the convention. Not only is the party chair out, but the Clinton Campaign is pointing fingers at donald trump and vladimir putin. Just as democrats were hoping for a big display of unity, party chair Debbie Wasserman schultz has been forced out accused of secretly siding with Hillary Clinton over Bernie Sanders in the primaries. The abrupt resignation comes after an email hacking scandal at the dnc. Wikileaks on friday released nearly 20,000 internal dnc emails showing Top Party Officials mocking sanders and conspiring to hurt his campaign. One message from a dnc staffer even proposed using sanders faith against him writing, my Southern Baptist peeps would draw a big difference between a jew and an atheist. Sanders has long claimed the dnc was biased against him. I think she should resign, period and i think we need a new chair who is going to lead us in a very different direction. Reporter in an interview with 60 minutes, new clinton running mate tim kaine, a former party chairman, criticized the dnc for appearing to work against sanders. In but theres a difference between having an opinion about somebody, having a candidate you prefer over somebody else. Theres a difference between that and trying to alter the outcome. Reporter the dnc first discovered its computers were hacked last month. Party officials said cybersecurity experts traced the hack back to russia. Russian officials denied any involvement. But on sunday, Clinton Campaign manager robby mook leveled his own explosive charge about the leaks. Its troubling that some experts are now telling us this was done by the russians for the purpose of helping donald trump. Reporter Trump Campaign chair Paul Manafort called that charge absurd. What is in the emails show its a clearly rigged system. Bernie sanders never had a chance. Reporter Debbie Wasserman schultzs resignation is not effective until after the convention, so she will both gavel in and gavel out the convention. Afterwards the reins will be turned over to Donna Brazile as the interim head of the party until after the election. Ive heard of Donna Brazile. Donna brazile, yes. Should talk to her sometime. Thank you. Lets move the camera right over. Theres Donna Brazile right here. All of you at home know her as one of our abc analysts but today you stepped aside from that here as the interim chair of the dnc take over the reins friday. Is it appropriate for Debbie Wasserman schultz to work through this convention . You know, debbie has spent a lot of time and effort in pulling together this convention this week we had three standing committees, they met, they approved the platform, the rules, the credentials. She deserves an opportunity to gavel us in, turn it over to the permanent chair and she deserves an opportunity i think to also close us out. I got to say if i were Bernie Sanders and read all those emails id be pretty angry as well and shows a real bias against him. How did that happen. Hillary clinton won fair and square. She won the most vote, the most delegates and of course, the most states. Theres no question and i have apologized to not only senator sanders but all of the other individuals, our donor, our volunteers and everybody who is imcomplicated. Will chairman schultz apologize as well. She is a member of congress and im sure she understands whats at stake and we need to come together. Tonight we will have a big night. A lot of good voices, Bernie Sanders, Elizabeth Warren and, of course, the first lady of the United States, this is going to be an exciting convention, were going to break out in a joyful noise tonight in i want to get to that. One more question about these emails. You saw robby mook yesterday on this week, the chair of the Clinton Campaign, director of the Clinton Campaign say the russians were behind this hack. Any evidence of that . I heard that there is a lot of evidence. We knew two months ago when it was first reported that some russians were behind it. I dont have any connection so i dont know whos really behind it in terms of the russian government and all the other stuff. Ill let the other people talk about that i want to talk about the convention, george, and the things we have to do this week. Lets talk about that. The new polls show you have your work cut out for you. Cnn poll showed a tenpoint bounce for donald trump and another poll shows a smaller bounce but still shows a tied race. You all need a good convention. You know what, Hillary Clinton comes into this convention as the candidate that can, i believe, answer the questions about the future. Her campaign and her message this week is that were stronger together, we can solve our problems, we can begin to project a better country with a Better Future for everybody and tonight we begin that conversation. How about the questions about her honesty, all the polls still show majority of americans think shes dishonest. I think what she has to do this week is a, you can trust me to focus on jobs, education, to make sure every american has a more safer and prosperous future. Donna brazile, welcome back. All right, george. Donna, and, of course, theyre hoping the resignation wont be a distraction as it kicks off with major headliners including as donna judd says senator Bernie Sanders. Abcs cecilia vega joins us now has much more on all that. Good morning. Reporter good morning to you. This is where it all happens as you said, some big headliners here tonight but dont forget this is Hillary Clintons convention and with that controversy hanging over this hall right now, party unity could be tough to achieve. This morning, philly or bust. The stage is set, the balloons are ready. Even if some fell a little too early. This is Hillary Clintons big show and she says shes ready to make history. I think it would be a great moment for our country because every little boy and every little girl should be given the chance to go as far as his or her hard work and talent might take them. Reporter joining her in that Convention Hall, her new running mate tim kaine. Overnight the democratic ticket sitting down for their first joint interview showing theyve become fast friends. I think that well be a good team. I believe well work well together. I believe that he will give me his best advice. Well, i just have to add that he plays a mean harmonica. Reporter trying to put on a united front against a common rival. He calls you crooked hillary. What do you call him . I dont call him anything and im not going to engage in that kind of insult fest that he seems to thrive on. So whatever he says about me, hes perfectly free to use up his own air time and his own space to do. Shes done a good job on letting the water go off her back on this. Thats not the way i feel. When i see this, you know, crooked hillary or i see the lock her up, its just ridiculous. Look, most of us stopped the name calling thing about fifth grade. Okay, lets talk prime time. The big role, Michelle Obama, will be walking about the role the president can play in childrens lives and, of course, you mentioned Bernie Sanders. He has a big role to fill tonight especially since so many of his supporters are still not on board, george. That poll you mentioned out this morning shows that one in four sanders supporters still say they will not vote for Hillary Clinton. They will be listening to Elizabeth Warren too. Thanks so much. Lets turn to the republicans and new team Tv Donald Trump and mike pence are kick off their first week of campaigning as the official gop nominees with trump taking to the airwaves and twitter to taunt the dnc and his old opponent ted cruz. Abcs tomorrow yall is live at trump tower in new york. Good morning, tom. Reporter george, good morning to you. Its a busy week for democrats, but its also a busy week for donald trump and governor pence, theyre hitting several battleground states including florida, North Carolina and ohio. As the democrats gear up for their convention, donald trump is already trying to steal the spotlight. Days later still bragging about his convention and his big speech. The only thing that some people said it was a little dark. It was a little bit tough. Did you think it was a little dark in no, i thought it was very optimistic. To me it was an optimistic speech because were going to solve the problems. In other words, sure, i talk about the problems blue but were going to solve them. Reporter for the quote haters who said the 75minute speech was too long, trump tweeting out this video with an applauseometer claiming 24 minutes or onethird of the speech was pure cheering. Vote your conscience, vote for candidates up and down the ticket. Reporter trump also not ready to let go of senator cruzs cannon ball speech where he did not endorse him. Cruz eventually getting booed off the stage. Trump said he entered the hall at that moment to save cruz. Ill tell you what, i did him a favor because had i not walked into the arena at that moment, i think they would have ripped him off the stage. Reporter now, donald trump says he is going to move forward by finding super pacs against senator ted cruz and also governor john kasich, the Ohio Governor who boycotted his convention. Thank you, tom. Well bring in matt dowd. Want to talk about the republicans but first of all you called this on saturday. You sent out a tweet saying Hillary Clinton should fire the dnc chair, replace her with Donna Brazile. That did happen. You said its a smart pick but is the Convention Starting under a cloud, matt. I dont know if the phillies will be in the world series i dont know about that pick yet. I think its a very smart pick. I have worked with Donna Brazile in the 1980s in campaigns and ive worked against Donna Brazile. We worked on the opposite side in bush versus gore in the course of this and i think many republicans are going to regret what they wish for because i think Donna Brazile is head of the dnc is going to put together a whole different discipline against the dnc and entirely different campaign, very grass roots oriented. I think its a very smart pick. About Hillary Clinton this week, what does she need to do. As you talked about earlier donald trump got a bump which wasnt unexpected and occupied the landscape all of last week. I i they are very aware that they need to have a consistent message throughout this. They need to be both understand peoples fears but lift people to a more aspirational hopeful place which didnt happen at the republican convention. If they can thread that needle i think they have a kesful convention. Tonight, Bernie Sanders. Tonight, Bernie Sanders and thats a big speech because i think theres till a lot of Bernie Sanders voters out there wondering whether or not Hillary Clinton is their person. They wonder about the tim kaine pick and, of course, in this series of email problems with the hacked emails in the course of this i think theres frustration on their part. I think his speech embracing Hillary Clinton in a fullthroated way i think is very important. Lets talk trump and pence now because as weve been talking about theyve gotten this bounce from the Convention Last week and theyre together this week for the first time. Different people, i think its safe to say. How do you think its going so far. I think theyre still theres an awkwardness to it and i think donald trump has a difficulty having anybody else standing next to him or being front and center. He is a person that constantly wants himself even in the announcement of governor pence, he sort of had governor pence in the background. I was struck by the difference between what Hillary Clinton did with tim kaine which was she actually stood in the background while he gave his speech which i thought was a much more seamless announcement in the course of this. I think theyll work it out but my guess is donald trump and mike pence wont be campaigning together a lot. All right, matt, thank you very much. Thats nice about the phillies but the lottery number, thats what i want to know after the show. If you can see that in the future. Thank you, matt. We move on. There is a new terror attack overseas overnight. It happened in germany where a young man with a bomb blew himself up outside a packed Music Festival. Thats just days after a shooting rampage in munich left nine dead. Alex marquardt is on the scene in ansbach with the latest. Reporter good morning, that bomber detonated his explosives just back there in the center of town after being turned away if that Music Festival. He was the only perch killed. 12 were wounded. Were learning more about him. Oa history of depression and tried to kill himself twice. Now, this town is home to more than 5,000 American Service pen and wom