It is back to school day for the majority of american kids. The return to school in 2020 is nothing like more than 7 million children starting the school year fully online, learning remotely rather than in the classroom. Kentucky reporting that nearly 20 of their new coronavirus cases come from kids 18 and under. A former fda commissioner acknowledges that americans are exhausted by maskwearing and social distancing, but he urges people to stay vigilant as we head into the fall and winter. President trump is now fixated on floating the possibility of a vaccine being available bottom election day, which he now calls, quote, a very special day in november. But developing overnight, an official familiar with the inner workings of operation warp speed this is the organization trying to get a vaccine out is dismissing this notion. The official tells cnn, i dont know any scientist involved in this effort who thinks we will be able to get shots into arms any time before election day. And breaking overnight, the Washington Post reports that House Democrats are launching an investigation into postmaster general louis dejoy and calling for his immediate suspension. This probe follows reports that dejoy gave bonuses to employees at his old company for making Campaign Contributions to republican candidates. If true, thichd be a textbook violation of Campaign Finance law, federal and state. Abby phillip has the details. If this were true, it wouldnt just be a textbook violation, it would be an uncreative violation of the Campaign Finance law. Reporter thats right, john. More than a few people have faced serious legal charges for this very kind of allegation. This would be a straw donation, if true. And now louis dejoy, the u. S. Postmaster general, is now under increasing pressure by democratic lawmakers who are vowing to investigate this, calling for him to be suspended from his post. This is amid a lot of controversy over his management of the Postal Service, but these allegations vs. To have to do w role as a Top Republican donor. He is a Top Republican donor and fundraiser for the Republican National committee and the allegations are from a former employee who was named on the record in the Washington Post that he pushed employees, allegedly, to donate to the Republican Party and republican candidates and then later directed bonuses to be given to them as a sort of reimbursement for those donations. Now, dejoy was actually asked about this very type of arrangement during an oversight hearing just a couple of weeks ago by congressman jim cooper. Take a listen to what he said. Did you pay back several of your top executives for contributing to Trumps Campaign by bonusing or rewarding them . Thats an outrageous claim, sir, and i resent it. Im just asking a question. The answer is no. Reporter now, President Trump was also asked about this allegation. Remember, President Trump named dejoy to that post, and he was given that position in large part because of his role in the Republican Party. Take a listen to what President Trump said when asked whether he would support an investigation. I think let the investigations go. Go ahead, please. Mr. President , a followup, please. If its proven to be a Campaign Finance scheme, do you think he could lose his job . Yeah, if something could be proven that he did wrong, always. Reporter so, its not clear where this would go, but democratic lawmakers are calling for North Carolina prosecutors to look into this issue. Dejoy could face potential felony charges for this kind of allegation. John . It was such an interesting response from the president. Hes called every investigation i can think of a witch hunt, but this one of dejoy, hes like, sure sure if he did it, you know, it definitely is a problem. That was interesting. All right, abby, thank you very much. Well talk more about this in a second. Happening now, we are learning that dozens of hikers are trapped in Central California with all escape routes cut off by the growing creek fire. Officials call the fire an unprecedented fire, 0 containment at this moment. Rescue attempts are expected to resume this morning after smoke from the fire caused helicopters to abort the mission. Firefighters are also battling the eldorado fire in southern california, sparked in part by a gender reveal party. It has now grown to nearly 10,000 acres, and Officials Say its only 7 contained. Okay, now to schools. 16 of the countrys Largest School districts begin classes today. But in 14 of them, no students will be in the classrooms. Cnns Dianne Gallagher is live in atlanta with more. Whats the situation, dianne . Reporter yeah, alisyn, six months after the controversy pandemic began, more schools are going back, but theyre going back online, and it is becoming abundantly clear why these schools are hesitant to go back into the classroom. Its the first day of school for over 1. 8 million students. But for those attending 14 of the nations 16 Largest School districts opening today, classes will be held entirely online. The American Academy of pediatrics reported over 70,000 new cases in children over the two weeks ending august 27th. Thats an increase of 17 . And while grade schools evaluate the safest way to begin the academic year, some College Towns are already turning into coronavirus hotspots. In upstate new york, suny oneonta reported at least 651 cases since the start of the semester. And at iowa state, at least 900 students tested positive since august 1st. At the university of new hampshire, a cluster of cases has been linked to a Fraternity Party attended by more than 100 people. So, were concerned about any other individuals who may have been attending events there or visiting their friends at this location, just because we know that there have been at least 11 people who have tested positive. Reporter that risk . Why nyu says its suspended 25 students for violating the universitys health and safety guidelines, this as Health Experts fear celebrations and crowds over Labor Day Weekend could fuel another round of dangerous spikes, as seen over memorial day and the fourth of july holidays. Were not in a sprint. Its very, very important that we continue to have all the social distancing, maskwearing, avoiding large groups. Were all very concerned that the behaviors this weekend will be an accelerant and spread covid virus even further. Flu is on the way. That will double the danger. Reporter President Trump once again implying a vaccine could be ready by november. So, were going to have a vaccine very soon, maybe even before a very special date. You know what date im talking about. Reporter but Health Experts say there is no guaranteed timeline, emphasizing that delivering a safe and effective preventive is key. Really hopeful that we will have a vaccine by either year end or by early next year, but the key thing about the process for getting a vaccine is that it has to be driven by science and scientists, not by political or, you know, figures, or by political time lines. Reporter now, if we talk again about children and the rising infection rate, im going to use kentucky as an example. Governor andy bashir said of the new cases on monday, 20 were in people under the age of 18, that the youngest was just 1 month old. And there may be some indicator that people are being a little bit more comfortable when it comes to traveling during the pandemic, and thats because there was a pandemicera high in air travel on friday. Now, it was just under 960,000 people screened by the tsa. John, that is a lot less than the 2. 2 million on the same friday a year ago, but its the most that weve seen traveling since the pandemic began. And aaa says that they predict many more people were traveling by car over this weekend. All right, Dianne Gallagher. Thanks very much. On the vaccine front, new this morning, democratic president ial nominee joe biden says he would take a corona vaccine tomorrow, if one was available, but the former Vice President echoed comments made by his running mate, senator kamala harris, saying that any vaccine rolled out before election day must be backed by science, not just President Trump. One of the problems is the way hes playing with politics, is hes said so many things that arent true, im worried if we do have a really good vaccine, people are going to be reluctant to take it. So, hes undermining public confidence. But pray god we have it. If i could get a vaccine tomorrow, id do it. If it cost me the election, id do it. We need a vaccine and we need it now. Cnns Arlette Saenz live for us in washington. Arlette, you cover the biden campaign. This is the day after labor day. It is the traditional kickoff of the home stretch. Reporter it certainly is, john. And you heard joe biden right there saying that he would be open to taking a Coronavirus Vaccine, if it came before election day, but with the caveat that he wants this to be a transparent process that is backed by scientists. Biden saying that there needs to be a vaccine, but he wants to ensure that it goes through that transparent process. Now, this comes as the president has accused biden and his running mate, kamala harris, of playing politics, and is calling on them to apologize for what he believes is an antivaccine message. But what both biden and harris were just making clear with their statements is that they want this to be a scientifically backed process and that theyre concerned that its the president who is the one thats playing politics. So, as we are heading into that fall election, the Coronavirus Vaccine is becoming a flashpoint right now. Now, one common refrain that we often hear from President Trump and his allies is that joe biden has lost a step mentally. Biden often counters that by telling voters they should just watch him out on the campaign trail and judge their performance for themselves. But yesterday, joe biden turned the tables on President Trump, even going a little bit personal. In an interview with a local pennsylvania station, biden saying, watch how i run up ramps and how he stumbles down ramps, okay . That being a reference to that moment after President Trump delivered the commencement speech at west point when he walked down a ramp slowly. Now, we are officially eight weeks out from election day, which means that both candidates are ramping up their campaign trail travel. We saw joe biden in pennsylvania yesterday. Hes heading back to pennsylvania at the end of the week. And tomorrow hes heading to michigan, just one of those states that President Trump won back in 2016, that hes hoping to bring back to the democratic column in november. Alisyn . Ramping up. I like it. Arlette, well done. Gingerly in some cases, or delicately. Maybe they should have a ramp walking contest. That could decide this entire election. Im sure the biden camp would like that. Three debates, plus a ramp walk. Yes and a sacarais. Meanwhile, new this morning, President Trump attacking the motivations of u. S. Military leaders, suggesting they start wars in order to fund defense companies. Cnns joe johns live at the white house with the latest. Hi, joe. Reporter good morning, alisyn. The president launching an extraordinary attack on the military top brass, accusing them of waging wars in order to boost the profits of military defense contractors, especially unusual because the president himself brags about increasing defense spending. But the relationship between the military leadership and the president has become increasingly strained in recent months. Now, this comes at the very same time of that report in the atlantic alleging that the president referred to military personnel killed in action as suckers and losers, also that the president himself decided not to go to a u. S. Veterans cemetery because he was afraid it would mess up his hair. Cnn has confirmed part of that story. So have some other media outlets. Heres what the president said on monday. Im not saying the militarys in love with me. The soldiers are. The top people in the pentagon probably arent because they want to do nothing but fight wars so that all of those Wonderful Companies that make the bombs and make the planes and make Everything Else stay happy. But were getting out of the endless wars. Reporter now, we did ask the pentagon about the president s statement. So far, no response at all. Alisyn, back to you. Okay, joe. Well be speaking about this more in the program. Thank you very much. Another member of the Trump Administration now reportedly under investigation. What this means for the Postal Service ahead of the election. Thats next. Im leah and thats me long before i had moderatetosevere rheumatoid arthritis. Ive always been the ringleader had a zest for life. Flash forward, then ra kept me from the important things. And what my doctor said surprised me. She said my joint pain could mean permanent joint damage. And enbrel helps relieve joint pain, and helps stop that joint damage. 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And anna, what struck me as so odd was yesterday, when the president was asked about this, he says, yeah, i think we should let the investigation play out, and if its proven dejoy did something wrong, he should lose his job. Who was that in the president s body . Im not used to him saying that an investigation should play out. Why is he, at least at a minimum, not defending dejoy, and at a maximum, cutting his legs out from under him . Reporter its a very different posture for this president , who regularly calls any investigation or criticism by opponents a hoax or tries to really go for the jugular. He really didnt defend dejoy at all up there. You know, i think that this is a president under siege, though. You know, he is on the defensive himself when it comes to, you know, criticism of military leaders and some of that reporting recently, in terms of the covid virus and the administrations response to that, in terms of being down in the polls. And so, i think that this is partly a deflection strategy, if there is a strategy there, in terms of saying, hey, look over there, instead of maybe where some of the other critical problems have been over the past 48 to 72 hours. Abby, i just want to recap. This is from the Washington Post investigation that they have just published that Something Like seven former employees of the company where dejoy worked in North Carolina said that this happened that they were pressured to make Campaign Contributions to republican candidates and then were reimbursed via bonuses, basically, which, of course, would be illegal. It would break North Carolina laws as well as Campaign Finance. But it was so interesting. The sound bite that you played from congressman jim coo