Instead of going to the doctors office, they virtually come to yours. The future of medicine at work. Nightly news begins right now. This is nbc nightly news with lester holt. Good evening. We expect to hear diametrically opposed views at the height of a president ial campaign but usually not from the same happening as donald trump ramps up his fiery and unsupported predictions of largescale election fraud, even as other key republicans, including his running mate say it isnt so. Nonetheless, a rigged election has become the central theme of trump rallies as we head into the final three weeks of the campaign. Whether its meant to fire up the base or provide an excuse in case of defeat, it is raising tensions and fresh worries about the dark consequences of such talk. Reporter in Donald Trumps arsenal of accusations, its become one of his most potent claims. It looks to me like a rigged election. A totally rigged election. Its a rigged election. This is a rigged system, folks. Reporter now facing a growing sefit in the polls and amid reports his family explored a Trump Tv Network for after the election, today trumps pouring fuel on his incendiary allegation. On twitter, claiming largescale voter fraud, questioning the fundamental of the election. Do you think theres largescale voter fraud in this country . Yes. Absolutely, positively. I would question it, whether its 100 valid or not. Reporter but congressman peter king is among republicans pushing back. Is it legally rigged . No, its not. Reporter running mate mike pence is softening the charge. Demand that our Public Officials are upholding the integrity of the vote, process. Reporter the democratss take hes a big bully whos getting beaten and now hes starting to whine. Reporter highway secretary of state john husted who overseas his battleground States Election results is slamming trump. Its irresponsible to say the election is rigged. You shouldnt sew seeds of doubt unless you have some facts to back it up. Reporter just 31 incidents out of one billion mr. Trump is using goes beyond just whats happening in the polling place. I think what hes trying to do is to send a message to his potential voters. Reporter the question tonight, will trumps message motivate enough voters in the key states that he needs to win . And tonight for the First Time SinceDonald Trumps controversial comments about women in that access hollywood hot mike, wre hearing from his wife Melania Trump here tonight inappropriate, its not acceptable. And i was surprised because that is not the man that i know. And as you can see from the tape, the cameras were not on, it was only a mike. And i wonder if they even knew that the mike was on. Because they were kind of a boy was lead on, like egg on from the host to say dirty and bad stuff. Reporter that clip Melania Trump is referring to was recorded on an access hollywood press tour bus in the presence of others. Access hollywood, of course, is owned by nbc universal. Lester . Peter alexander, thank you. Tonight, police and federal agents are investigating the office in North Carolina over the weekend. As the ton of the president ial campaign becomes even more divisive and corrosive with 22 days until the election. We get more on that from our justice correspondent pete williams. Reporter tensions have been rising all year in a campaign thats seen undertones of violence. The fbi and atf are helping Police Investigate saturday nights firebombing of a county Republican Party office in hillsborough, North Carolina. No one was hurt, spray republicans, leave town or else. And a swastika. The president of the Arizona Republic newspaper says after it endorsed Hillary Clinton last month, the staffs been getting death threats, even the students who sell subscriptions. People are spitting on them, calling them vile names. Today somebody called and said that if we sent somebody to knock on his door, he would pour boiling water on him and sick his dogs on him. Reporter the social media over the weekend, tweeting that instead of complaining about Big Government and media, its pick forks time. Some talk this year has been ambiguous. The wall street journal interviewed a trump supporter last week in ohio who said if Hillary Clinton is elected, she should be, quote, taken out. It sounds like youre saying that it would be acceptable to assassinate a president . If shes corrupt, why should she be able to stay in office . Answ reporter the secret service wont talk about specific cases, but says it investigates all incredible threats. Ald baldasaro said ages investigated him. On sunday, an online appeal asked for donations to help republicans reopen that firebombed office. The money was raised by a massachusetts democrat. Pete williams, nbc news, washington. Hillary clinton is facing new trouble of emails. One is the continued leaking of emails illegally hacked from her campaign manager. A new batch published by wikileaks late today. The other separate situation involves continued fallout from her use of a private email server. New disclosures. Reporter Hillary Clinton heading out to practice for wedness another unexpected fire storm over her private emails. First, notes released today from the fbi email investigation, quoting an fbi agent accusing a Top State Department official of proposing a quid pro quo to resolve a dispute over whether a clinton email should be classified. The notes say, in exchange for marking the email unclassified, state would reciprocate by allowing the fbi to are forbidden. In rare agreement, donald trump and Speaker Paul Ryan jumped all over the charge. This shows corruption at the highest level. And we cant let it happen as american citizens. Reporter the problem with that story line, the fbi and the Statement Department say it never happened. Theres no quid pro quo. Absolutely not. Reporter in fact, both sides say it was an fbi official who brought up the question of placing agents overseas. Separately from the ne classification. No link aj, no quid pro quo. Second, another set of emails. Those stelen from her campaign commarm john podesta and released by wikileaks, the u. S. Says, with help from russia. The wikileaks trove, not authenticated by the campaign or nbs news, include transcripts of her speeches to goldman sachs. Revealing she changed her positions on trade, immigration, and wall street. Let everybody see them reporter now clinton says shes be tough on wall street. We still have to crack down on the big banks. Reporter clinton appears to have told the bankers, the people that know the industry better than anybody are the people who work in the industry. But for all this, clinton is now 11 points ahead in our new poll tonight, and now expanding her campaign to red states, like utah, texas, georgia, even arizona, where Michelle Obama will campaign this week. The democrats to win decisively and put to rest Donald Trumps talk of a stolen election. Lester . Andrea mitchell tonight, thank you. Overseas now to a major assault under way in the fight against isis. American forces assisting iraqis in a longawaited offensive to take back the city of mosul. The center of the islamic states power in iraq. Our chief Foreign CorrespondentRichard Engel is in iraq, taking us inside the command center for from its iraqi stronghold mosul got off to a raucous start. Hundreds of iraqi Armored Vehicles race to the front lines. In most places isis pulled back. But not always, sending at least seven car bombs to attack iraqi and kurdish forces. This is the defining battle of president obamas war on isis, and its being coordinated here in this joint operations room. Iraqi officers on one the americans control the skies, have about 5,000 troops in country, and have been launching artillery and air strikes to back up the iraqi advance. While the americans werent authorized to talk to us, the iraqi ground commander says so far coordination is working well. The american and the iraqi, one team. Reporter this base, keyara west, is now home to hundreds of american troops. Up by isis back hoes as soon as the holes are filled in, american planes will land here, to support iraqi troops in mosul. Taking mosul is such a high priority because mosul is isiss last stand in iraq, the biggest city it holds. A symbol of isis power, attractive to wouldbe terrorists. We will liberate mosul, god willing, a soldier told us. But there are signs this wont b pursuing a policy of scorched earth. Iraqi commanders say today they dont plan to actually enter mosul itself, but to take a village nearby. Here isis set an oil well on fire. It was a deliberate act of sabotage. And many commanders fear that isis may have even worse in store for mosul itself. Isis torched the oil fields it used to fund its terrorism. Rather than see them government. Isis could fight to keep its capital in iraq, or just burn it down. The Iraqi Government said in all today was a successful first day. What we saw was a tightening of the noose around mosul. The worst violence could come when troops reach the builtup areas in the city center. No sign exactly when that could happen. Lester . Richard engel, thank you. Staying overseas for a moment, as we images out of syria. The video shows a boy hanging from the side of a building that had just been hit by an air strike in aleppo. His legs pinned in the rubble, his yellow tshirt with the words dont shoot written on the front. Back at home in kentucky today, three men pleaded not guilty today for a shootout that tragically left an olympic sprinters daughter dead. Of tyson gay, was hit by a stra bullet when gunfire was exchanged in a lexington parking lot. They asked for prayers and privacy. We turn now to a dramatic rescue caught on camera in florida when an suv went off the road and burst into flames. Police and several complete strangers leapt into a race against time to save the driver inside. Nbcs Kerry Sanders now with the riveting details. The driver is trapped. Is there a fireextinguisher . Throw it down to them reporter a chaotic race by Good Samaritans to save a life. Flames sparked, fears of an explosion. You will live. You will not die reporter despite the danger, tom climbs through the smashed back window to free the driver. Then when i got to the very front with the flames on the windshield, smoke coming in the compartment, there he belt. Woo reporter the stunned driver was inexplicably combative. Police tase and handcuff him, trying to control him. Come on reporter civilians and Police Officers lock arms. Make a chain reporter and pulled tim oteal up the hill to safety. Moat eel says he has no recollection of the accident, seeing it for the first time when we showed it to Reporter Police tonight investigating what happened. A driver alive thanks to a group of total strangers who just wanted to help. God bless you all very much. Thank you. Reporter Kerry Sanders, nbc news, miami. An incredible moment. Still ahead tonight, the revolution in medicine, doctors able to diagnose you from hundreds of miles away. Now even when youre at work. Also, how a major whoa. [ gears stopping ] when your pain reliever stops working, your whole day stops. Try this. But just one aleve has the strength to stop pain for 12 hours. Tylenol and advil can quit after 6. So live your whole day, not part. With 12 hour aleve. Dunk champion . 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And now even where you work, inside a private booth at School District headquarters in west an employee with a nurse practitioner, 80 miles away at that command center, using High Definition scopes and cameras to check ears and throats, temperature and Blood Pressure. It saved jessica christiansen. I would have tried to ride it out. Reporter when she was nauseous on the job and reluctant to leave, she walked down the hall for a telemedicine visit, covered by insurance, there diagnosed with a severe infection. If it wasnt for them, it could have been a lot worse for me. Reporter its expected by next year, 75 of Large Companies will offer some kind of telemedicine. Doctors say its meant for nonemergencies. There is absolutely no substitute for the primary care physician. I see telemedicine as an adjunkts to the care youre going. Reporter its modern medicine. The doctor can see you now, even when youe news, miami. When we come back here tonight, whats that falling from the sky . 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The continuation of an upward trend and improvement across all ethnic groups. A major american retailer says enough is enough of the creepy clown craze. With just two weeks until halloween, target has pulled many clown masks from stores and its website. This as scares involving people dressed up as clowns continue to keep communities across the country on edge. Now to a e in los angeles. As you know, traffic here is nothing new. People are used to that. Its not national news, except when the reason behind it is that it rained here today for the first time in 165 days. The first measurable rainfall here since may, making for slick roads and disbelief on social media from angelinos who couldnt believe it was actually raining. And by the way, it cleared up after a few hours. When we come back, are you feeling stressed out over the nbc nightly news is brought to you by pacific life. Helping generations of families achieve longterm financi . 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Reporter if you feel like the president ial election is driving you nuts, youre right. Day in and day it will drive you crazy if you Pay Attention to all of that. Im concerned hillary will win. Very stressed. We have a trump running in 2016 in america, thats very stressful and worrying. Reporter really . The American PsychologicalAssociation Says fully half of us say the election has been a very, or somewhat significant source of stress. A pough poll says more than half of americans are disgusted with the facebook as a distraction, you go to your facebook feed, people are posting go the election. So youre never, ever getting away from it. Reporter no wonder a hotel in boston is offering an election escape package. Theyll block the news channels from your room and snip the election coverage from your newspaper. Whether youre for trump or hillary, youll feel refreshed either way. Reporter in des moines, its clear the election has gone to pleading for it just to be over. Used to be halloween was my worst fear of the scariest day of the year. Now the election is. Reporter for those who are truly stressed, the good news, the election is just 22 days away. The bad news, even when its over, it wont be over. Harry smith, nbc news, new york. And that is going to do it for us on this monday night. Im lester holt. For all of us at nbc news, thank you for watching and a dangerous diving who proves deadly once again. Coming up on 8 at 7 00, with two more lives lost in the eagles nest sinkhole, we take a look at why it is such a big risk to dive year. Plus , mosaic has taken new measurements of the sinkhole