Be the indians . Were there. Good evening. And its great to have you with us here on a wednesday night. And less than a week to go until election day. More than 31 million americans have already voted. And this race is tightening tonight. Lets get right to the battlegrounds, new numbers from the key state of florida at this hour. Hillary clinton at 46 , donald trump at 45 . Nortca state, very tight, clinton, 47 , trump, 44 . In pennsylvania, considered clintons firewall, the race tightening. And in ohio, trump in the lead and the new abc news tracking poll shows this race is a dead heat, 46 apiece. Tonight here, the closing arguments. You will hear from trumps family in a moment, but first, the president and his plea today. Off. Reporter Hillary Clinton mobbed today in florida, cheering on early voters during an unannounced stop at a polling place. Hillary clinton is leaving one battleground state and heading to another. Nevada first, and then arizona. A democrat hasnt won there in 20 years. Clinton boarding that crosscountry flight, knowing her squad of surrogates is swarming the battle if grounds. In North Carolina, long lines. People waiting hours to see president obama. You know what, shes not flashy. As a consequence, sometimes home. But she made me a better president. Reporter the president today with a direct appeal to young and africanamerican voters. Back in 2008, i won North Carolina by 14,000 votes. Thats about two votes per precinct. How can you say your vote doesnt count . Each of you could swing an entire precinct for hillary, if reporter in florida, Vice President joe biden turning the focus back to donald trump. This guys got a fixation. Have you heard anybody, ever, talk as much about, and be so preoccupied with womens bodies . This guy doesnt deserve to be president by any account. He really doesnt. Reporter and vouching for clinton. Weve been friends a long time. Shell finish the job we started. Reporter with the polls tight, team clinton is now looking beyond the battlegrounds, dispatching Bernie Sanders today to blue states michigan and wisconsin. The choice is clear. Reporter states trump is trying to win, too, by appealing to White Working Class voters. Not only is he going to lose on november 8th, but he and his friends, his billionaire friends reporter with just six days to go, some clinton supporters already looking ahead to the history should could make as the nations first female president. I just wish my mother and dad could see all of this. Reporter in prescott, arizona, 102yearold jerry emmett, born before women had the right to vote, remembers watching her own mother vote for the very first time. They all came down to watch the women get to vote. Even the men were happy. And cecilia vega joins us from las vegas tonight. And cecilia, president obama today campaigning for Hillary Clinton, but also weighing in on fbi director james comey, who, of course, went public just days before the election, saying they were looking at newly discovered emails that may or may not be significant. Heres what the president said. You know, when there are investigations, we dont operate on innuendo, we dont operate on incomplete information, we dont president say there, we dont operate on incomplete information. Was this aimed at the fri director . Reporter david, it sounds like it. But the insinuation right there, the president is not happy. Tonight, the white house is trying to downplay these comments, saying nothing has changed from the president s initial plan to neither criticize nor defend comey on this one. David . Cecilia vega leading us off tonight. Cecilia, thank you. As you saw there, as Hillary Clinton flies across the country, deploying her army or trump with his own surrogates, too, and many of them with the same last name. The trump children, out making the case for their father, as they have since day one. Abcs tom llamas on Donald Trumps closing argument. Reporter donald trump today taking florida by storm, urging supporters to fight like underdogs. Pretend were slightly behind. You got to get out. We dont want to blow this. Reporter trump casting this election as the final battle for the heart and soul of america. The future lies with the the critics, certainly not the media, aye. We are asking for the vote of every american who believes truth and justice, not money and power, should rule the day. Reporter trump beginning this race as a family enterprise, and thats how hes ending it, as well. His children out today, campaigning in five key states. Ivanka trump with three stops in North Carolina. In detroit, don jr. Pushing the campaigns message on jobs and trade. He wants to infuse common sense back into the clintons emails back in the headlines, trumps new appeal to democrats its not too late to change your mind. Wisconsin is one of several states where you can change your early ballot if you think youve made a mistake. A lot of stuff has come out since your vote. Reporter hes right. People whove already voted in wisconsin are allowed to switch their votes. Same goes for michigan and pennsylvania. It just doesnt happen that often. On the view, Campaign Manager showing trump and clinton neck and neck. Were loving the abc news polls. Didnt you guys say the polls were rigged . Never me, never me. Will it be crooked again if he slips in the polls . Are we back to crooked . No. What i think you need to do is get ready for a chiron that says president elect, donald j. Trump. Reporter but the campaign acknowledges trump still has to close the gender gap. Hes still struggling with women, so now the campaign is arting to hand out these pink women for trump signs. You see them just as much as any other sign now. Supporters we spoke with, convinced hes going to win. The media says hes losing everywhere, but this is really encouraging, seeing all the people here. Reporter so, youre motivated . I am. Going to wake up november 9th and the country will be red. Reporter amid all the excitement today, this ominous image. An africanamerican church in mississippi, torched and skraled vote trump. And tom llamas is with us tonight. Disturbing images of that church. And tom, we know the Trump Campaign has condemned violence before. But they are reacting to an endorsement from the ku klux klan newspaper . Reporter they are, david. They are calling that newspaper repulsive, saying the publication does not represent the views of the tens of mfls of supporters that are supporting the trump capable right now. David . Tom llamas, thank y much. Lets get wright to the map here tonight, because its all about the battle the grounds and, of course, that past to 270 electoral votes. Lets bring in jonathan karl. Donald trumps pathways seem to be opening just a bit here. And does Hillary Clinton still have a firewall . Reporter the map still favors Hillary Clinton, but donald trump has momentum. Look at our ratings. Every state weve looked at, the red favor trump, blue favor Hillary Clinton. And two states since we last spoke have moved towards trump. States to advantage donald trump. Getting him closer to 270. But david, he still needs to win all the remaining tossup states, arizona, florida, North Carolina. If he wins all three of those, he goes to 259 electoral votes, still short. Still short. So, he has to pick off a couple of the blue states. Reporter and hes got good news on that front. In the state of pennsylvania, a new poll out today shows trump within four. In wisconsin, a poll and joe biden is going to wisconsin on friday, a sign they are nervous. Look what happens. If he wins pennsylvania, he wins the presidency. If its wisconsin, 269269, weve got a tie, theres no copresidency. Congress chooses. A nightmare scenario, which is why the clinton team is doubling down on pennsylvania and wisconsin. Jon, our thanks to you. That map will change right up through election night, and a reminder, six days from now, on election night, our coverage at 7 00 p. M. Eastern, ill be joining george and the entire powerhouse political team. We will be here all night long. And if jons suggestion is true, we could be here for weeks. In the meantime, we do move onto other news tonight, and to the deadly ambush in iowa. Two Police Officers killed, as they sat in their patrol cars. The shootings triggering an urgent manhunt. Tonight, a suspect is in custody. Abcs eva pilgrim is in iowa. Reporter tonight, this man in custody after two iowa Police Officers were killed in cold blood. These officers were ambushed. It doesnt look like there was any interaction between these officers and whoever the coward is who shot them while they sat in their cars. Reporter Officials Say the attack started just after 1 00 a. M. 24yearold Justin Martin is shot and killed sitting in his police car. Polk county does confirm officer down. Reporter 20 minutes later, more shots, just blocks away. Another officer hit over in his car. Ambulance rushed him to the hospital, but he does not survive. The manhunt now under way. At 7 00 a. M. , authorities identify the suspect as 46yearold Scott Michael greene. Officials shutting down area schools. Then, at 9 00 a. M. , a break. Subject is in custody. Reporter Officials Say the suspect is on a rural road when he turns himself in by flaking down a passerby. Have i committed a crime . Were asking you to leave. Reporter authorities investigating a video of this incident two weeks ago. Greene was kicked out of a High School Football game after complaints he was flying a Confederate Flag in the stands. He apparently filmed as he argued with police. When you fly a Confederate Flag standing in front of several africanamerican people, thats going to cause a disturbance. Im not saying i never said it wasnt your right. Did i say it wasnt . Not been charged yet. Here, we have seen a steady stream of people in urbandale. This is the first officer killed in the line of duty for this department. David . Eva pilgrim there in iowa. Eva, thank you. We turn next here to a new flashpoint at the site of a controversial pipeline plan in north dakota. New arrests tonight amid a clash at the scene. Protesters crossing a river to reach the construction site, then met with police in riot gear with pepper spray. Here tonight, abcs clayton sandell. This north dakota creek today, police hit protesters with pepper spray as they tried to cross the water on a makeshift footbridge. This latest standoff is part of a protest thats been going on for months. 140 protesters were arrested last week after building roadblocks and setting cars on fire. They are trying to stop construction of a 1,200mile pipeline from north dakota to illinois. Saying the pipeline would sites. The Pipeline Company says it would be safer and cheaper than using trucks or trains. Today, president obama says the army corps of engineers is looking into the possibility of changing the pipelines path. My view is that there is a way for us to accommodate sacred lands of native americans. Reporter but that decision could take several more bweeks. In the meantime, protesters say theyre not going anywhere. David . Clayton sandell tonight. Clayton, thank you. Next, to alabama, and to news. A state of emergency remains in place tonight after a deadly explosion there. Tonight, the fire is now contained, but still burning, and the line from houston to North Carolina is still shut down. The full line reaches all the way to nbew jersey. Prices at the pump are expected to rise, especially in the southeast. The Company Hopes to have that pipeline repaired by this weekend. Overseas tonight, and a new analysis of that mysterious end to Malaysia Airlines flight 370. Investigators say the pieces cruise position. In fact, they now believe the plane ran out of fuel and spiraled down, increasing in speed until it crashed into the indian ocean. 239 people were lost when the plane vanished more than two years ago. Back here at home tonight, and from wisconsin now, there is growing outrage after an experiment meant to scare teenagers into driving safely. The school and the Student Council in on it, announcing the deaths of four students in a texting while driving but later, it was revealed it wasnt true, they were alive. Tonight, at least one parent is calling it a barbaric scare tactic. And heres abcs gee jeon benitez. Reporter its a morning announcement like no other. There have been a series of wrecks and multiple reckless driving things happenings currently around brodhead. Weve currently lost a handful of fellow students. Reporter students sitting on camera announcing the death of four schoolmates who died in a car crash. Some kids were crying. One girl went home because reporter but minutes later, the truth. Students told, there was no accident, and their classmates were very much alive. Those four students and their parents in on the secret. It turns out, the school says it just a simulation, intended to teach a lesson about distracted driving and safety on the road. And some parents are fuming. One mother sounding off on facebook, saying, enough with the barbaric scare tactics. Tonight, the superintendent telling us, the district would like to apologize for any unnecessary stress that this but still, he defends bringing awareness to a serious issue. And david, that idea was approved by school officials, but it came from the Student Council. And one member there saying it was worth it if even one life was saved. David . All right, gio benitez tonight. Gio, thank you. There is still much more ahead on world news tonight this wednesday. The out of control bus slamming into a home, and the dramatic pictures right here. That bus hit by a pickup truck. Then you actually see the bus driver behind the wheel there. Also tonight, new reporting on that mystery illness growing in numbers, affecting children. The 6yearold boy who has died, and what weve learned tonight. And then, the world series moment of truth is here. And we want to hear from you tonight. Tweet me. Will it be the cubs or the indians . A lot more ahead. A lot more ahead. Stay tuned. D . 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Reporter but it quickly escalated. They took him to seattle childrens hospital. Basically within a couple of hours, he was basically paralyzed. Doctors suspect he had afm, acute flaccid myelitis, a rare illness that can cause poliolike symptoms, including paralysis. Even more troubling, seattle childrens is now seeing a cluster of cases, nine suspected so far. Doctors now investigating why the sudden uptick in cases. Whenever you see a cluster of illness like this, you got to jump on it, investigate it, figure out if theyre related, and if so, what you need to do reporter so far this year, 89 confirmed cases in 33 states. The cases here range in age from 3 to 14. So far, five of those kids recovered enough to go home, but doctors here tonight remain very concerned, david. All right, Neal Karlinsky in seattle. Neal, our thanks to you. When we come back tonight, the new head call headline this evening, new hope of a possible alzheimers drug being put to the test. 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