Lester holt. Good evening. An hourlong press conference with president obama today over an issue no less weighty than iran and the nuclear bomb was suddenly overshadowed by a single question about another serious topic and an answer no one expected the president would publicly utter. The question was related to the rape accusations that surround bill cosby. It was not the issue top of mind as the president went before reporters to pitch the Historic Nuclear Deal with iran but its what a lot of people are talking about tonight. Were of course covering it all. But we want to start with Nbc News National CorrespondentPeter Alexander and that question. Ill say this. Reporter it was a stunningly powerful statement, especially for a president whos made it his policy not to comment about ongoing legal matters. If you give a woman or a man for that matter without his or her knowledge a drug and then have sex with that person without consent, thats rape. Reporter the president himself a lawyer publicly defining rape more than a week after a federal judge unsealed a 2005 deposition in which bill cosby testified that he gave a woman drugs before sex. I think this country, any civilized country, should have no tolerance for rape. Reporter the president s blunt answer was to a reporters question about whether cosby should be stripped of the president ial medal of freedom. Awarded to him in 2002 by president george w. Bush. More than 30 women have accused cosby of sexual assault, including beverly johnson, who today tweeted president obama states on tv that drugging and having sex with a woman after is called rape. Barbara voman says cosby raped her multiple times when she was a 17yearold aspiring actress three decades ago. Vindication and validation of my of the truth behind my story. I am elated. Reporter president obama said there was no president for revoking the 77yearolds medal of freedom. Long before there was president obama there was bill cosby helping break the color barrier on network tv. The two of you at any time. Reporter while in Office President obama hasnt shied away from the topic of sexual assault, offering this psa during the grammys. Its not okay. And it has to stop. Reporter and late today bill cosbys representatives told nbc news they have no comment about the president s remarks about drugs and rape. Cosby has never been charged with a crime, and both he and his representatives have repeatedly denied past allegations. Lester . Peter alexander at the white house. Those comments from the president as we mentioned came in the middle of his hard sell on that nuclear deal with iran. And he had some tough words for those vowing to force a showdown over the deal in congress. Our senior White House CorrespondentChris Jansing has more on that for us. Reporter even by washington standards the political fight over the Iran Nuclear Deal is intense. And the white house is on offense. So this deal is not contingent on iran changing its behavior. Its not contingent on iran suddenly operating like a liberal democracy. It solves one particular problem, which is making sure they dont have a bomb. Reporter point by point today, president obama answered critics who said the agreement makes the world less safe. Without a deal we risk even more war in the middle east. Reporter virtually every republican member of congress and president ial candidate is opposed to the agreement. The president s announcement yesterday is just another in a series of his lies. Reporter republicans are threatening legislation to scuttle the deal. Obama would veto it. But to sustain that veto hell need democratic support. So he sent Vice President biden to capitol hill to find it. Im here to answer questions and explain what the deal is. Reporter bidens very popular here but not everyone was convinced. Ive been skeptical from the beginning of this. Im still skeptical. Reporter many of the skeptics are democrats. At least 14 of them just in the senate. The key player new yorks chuck schumer. Hes close to Hillary Clinton, who was on the hill yesterday supporting the deal. But hes torn between progressive constituents who like the diplomatic approach and many jewish voters, who believe it makes israel less safe. I am going to just study this agreement before i and talk to people before i do anything else. Reporter someone doing a lot of the talking, israeli Prime Minister benjamin netanyahu, who spoke to lester earlier today. Will you be lobbying congress to reject this deal . Look im making that point to anyone who will listen. Im making it to you now. It shouldnt be a part of the mission of the united states. It doesnt happen very often in history. But when arabs and israelis agree, its worth paying attention. Reporter facing such impassioned opposition the president sent a message to opponents. If we dont choose wisely i believe future generations will judge us harshly for letting this moment slip away. Reporter at one point during the press conference the president pulled out his notes to answer questions that hadnt even been asked. Hes so intent on making his case. And as he was speaking some Senate Democrats were here at the white house getting their questions answered by senior staff members. Republicans, meantime have 60 days after they get classified parts of the deal to try to stop it. Lester . All right, chris, thank you. To the race for president now and a moment of truth for donald trump. He filed forms today as required by law of anybody running for president that are supposed to reveal how much hes worth. But it was difficult, his campaign claims because those forms werent designed for someone of his massive wealth. And a summary the campaign released left many questions unanswered. Nbcs katy tur has details. Reporter unlike most president ial hopefuls donald trump doesnt shy away from his wealth. He flaunts it. The total is 8,737,540,000. Reporter that was in june. One month later trump says its actually in excess of 10 billion. Capital letters his. I think what hes trying to say is if you vote for me youre voting for someone who is the american dream. Reporter many analysts thought trump would never do it filing his personal Financial Disclosure with the federal election commission. The f. E. C. Has 30 days to release it to the public. But the campaign offered some of its highlights. And there werent many. Income last year 362 million. Stock gains, more than 27 million. Salary from 14 seasons of the apprentice on nbc, 213. 6 million. But the campaign released very few statistics on trumps assets. What stood out to me was the 10 billion in all caps but then not really being able to see the information to support it. Reporter next to nothing on his Real Estate Holdings his branding deals, or his debt. Whats more numbers on paper may be smaller than they appear. With trump we think theres a bit more art to science than hes letting on. And we tend to think that hes worth closer to 4 billion than the 10 billion he asserts. Reporter regardless trump is flying high. A Usa Today Suffolk University poll shows him leading the gop field at 17 . I think trump is really resonating because hes very plain spoken and hes saying what he means and he means what he says. Reporter still, that same poll showing when it comes to Hillary Clinton trump would lose by a wide margin. Katy tur, nbc news new york. Weve got our eye on some wicked weather this evening. Communities on high alert as a nasty storm system brings torrential rain and widespread flooding to the northeast. While in the south three are confirmed dead and at least five people are still missing in the aftermath of the major flooding in kentucky. We get more of this from nbcs john yang. Reporter officials and family members desperately pressed the search for the missing in rural Eastern Kentucky after torrential rains triggered devastating flash flooding. I pray for those that are missing. Reporter among them scott johnson, 34 swept away as he carried his 74yearold grandmother, willa may pennington on his back. Her body was found among debris. That same storm system moved aefts with high winds and driving rain. New jersey shore vacationers made the best of it. Since yesterday morning from the plains to the east coast at least 373 reports of wind damage 37 of hail and 5 tornadoes including an ef1 twister in cooksville tennessee. Big pieces of metal and big pieces of wood trees and stuff you could see back in there just swirling in there. Reporter outside atlanta a spectacular light show as lightning struck a utility pole. In northeastern ohio 12 dogs had to be rescued from the flooded copawcabana kennel along with workers. Neither humans nor their charges were injured. John yang, nbc news. Want to show you a piece of video giving us an exact look at the moment the notorious drug lord known as el chapo made his escape from a mexican prison. Its surveillance footage. It shows him ducking behind a shower wall and vanishing, apparently slipping through a hole under the shower into that milelong tunnel below and on his way to freedom. He remains this evening the subject of a Massive International manhunt. An extraordinary moment in germany when the sins of world war ii finally caught up with the man known as the accountsant of auschwitz. He was convicted and sentenced to four years in prison in what is likely one of the last nazi trials we will ever witness. Joe fryer tells us what happened in the courtroom. Reporter it took seven decades but today Oscar Groening a former nazi guard at auschwitz, slowly walked into a german court to learn his fate guilty of being an accessory to the murder of 300,000 jews. The importance of this verdict is that it clearly says that auschwitz was a place that was just a murder machine. Reporter at age 94 groening was sentenced to four years in jail, six months more than prosecutors had recommended. For holocaust survivor leon schwartzbaum its a measure of justice but one thats hard to celebrate. My life has been destroyed, you know. Reporter groening became known as the accountsant of auschwitz because his job was to count money confiscated from jews. While he says he did not kill anyone himself he admitted in court he felt morally guilty. German court wants to punish a 94yearold . Why didnt they do it 30 40 years ago . Reporter auschwitz survivor eva korr actually hoped groe ning would get Community Service speaking out about his grets. As a young girl she and her family were sent to the concentration camp in 1944 and she never saw her parents again. Now she lives in indiana and recently traveled to germany for the trial, where she spoke to groening face toss face. Are you feeling okay . Before he reached out to embrace her. I understood that he wanted to show me that he cared and that was his way of doing it. And how could i be angry with somebody who cares . Reporter with a chance to appeal for now, groening remains a free man. Joe fryer, nbc news london. In colorado a jury holds the fate of james holmes in its hands. Deliberations began today in the movie theaterar trial. Holmes has pleaded not guilty by reason of insanity for the mass shooting that killed 12 people and injured 70 others. The threeyear anniversary of that horrific attack is next week. Today was bigger than black friday for amazon or so it claims. The online retailer offered big savings as part of its muchbuzzedabout prime day promotion. It sparked a war with walmart and with some customers who say the deals arent all theyre cracked up to be. Our Miguel Almaguer got the story at an Amazon Fulfillment Center in San Bernardino california. Reporter theyre calling it christmas in july. A oneday blockbuster sale. A 32inch tv for 75. A laptop for 200. Its aimed at getting you to join amazon prime, a 99 subscription to the largest Ecommerce Company in the u. S. Giving you free twoday shipping. Prime day was conceived as an opportunity for us to provide more deals than black friday on the eve of our 20th birthday. Reporter but theres been disappointment. Prime day looks like a cheap garage sale. Better deals at ross. Still, with tens of millions of prime customers, amazon is changing the game. Nicole marsh, a busy mother of two, is a prime target. Anything that i can get at a Big Box Store i buy off amazon. And purely out of convenience. Reporter with amazon sales expected to top 100 billion this year other retailers have noticed. Today a battle between the giants. Walmart making similar price cuts touting no subscription fees. Amazon has a big focus on bringing that twoday shipping in prime down to sameday shipping. And that will be a huge impact on brick and mortar retail. Reporter with big retailers going to war online tonight, here at amazon facilities they are really cranking it out. Theyre shipping everything from toasters to televisions. And while amazon doesnt want to talk specifics, they dont want to give numbers, they will say today their numbers were better than they were on black friday of 2014. So while it may not have been christmas in july for you, it certainly seems to have been christmas in july for amazon. Lester . All right. Miguel almaguer for us tonight. Thank you. Still ahead tonight, if youre not on statins, maybe you should be. There are some new studies out that seem to back up that advice that millions more americans should be taking these potentially lifesaving drugs. Well tell you where you might fit in. Also Caitlyn Jenner accepting a sports award for courage tonight, but some critics are asking were more you total your brand new car. Nobodys hurt,but there will still be pain. It comes when your Insurance Company says theyll only pay threequarters of what it takes to replace it. What are you supposed to do, drive threequarters of a car . Now if you had Liberty Mutual new car replacement, youd get your whole car back. I guess they dont want you driving around on three wheels. Smart. With Liberty Mutual new car replacement, well replace the full value of your car. See Car Insurance in a whole new light. Liberty mutual insurance. Morning ted scott ready to hit some balls . Ooh hey buddy, whats up . This is what it can be like to have shingles. Oh, man. A painful, blistering rash. If you had chickenpox, the shingles virus is already inside you. 1 in 3 people will get shingles in their lifetime. Ah. After almost 3 weeks i just really wanted to give it a shot. 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Reporter the ads are everywhere. Im down with crestor. Reporter now two new studies support recent controversial guidelines almost half of all americans between 40 and 75 years old should be prescribed statins. I think these studies are very reassuring and they will lay to rest for a lot of individuals a lot of scientists and physicians the concern about overtreatment. Reporter under the old guidelines statins were recommended based on the level of bad cholesterol. The updated guidelines are more personalized. Adding age, gender race weight Blood Pressure good cholesterol levels, and smoking history. And say even those at moderate risk should be put on statins. The two studies published this week in the journal of the American Medical Association suggest that increasing the number of people on statins could prevent up to 63,000 heart attacks, strokes, and deaths in a tenyear period and is cost effective. Is taking a pill the only way to reduce your risk of heart attack and stroke . Absolutely not. The most effective way to prevent heart attack and stroke is lifestyle, lifestyle, lifestyle. Reporter dr. Mosca says that means stop smoking, maintain a healthy weight exercise and eat a largely plantbased diet. To get your cardiovascular system in good shape. Anne thompson, nbc news, new york. We are back in a moment. Have you seen these yet . The incredible images nasa released today showing that weve been missing 3 billion going out for date night with your man is nice. But i think women would agree. Snuggling up after is kinda nice too. But heres the thing about half of men over 40 have some degree of erectile dysfunction. Well, viagra helps guys with ed get and keep an erection. Ask your doctor if your heart is healthy enough for sex. Do not take viagra if you take nitrates for chest pain; it may cause an unsafe drop in Blood Pressure. Side effects include headache, flushing upset stomach and abnormal vision. 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Leaving you free to focus on what matters most. Until now pluto was nothing but a blur at the end of our solar system but striking new photos released today from the new horizons probe are getting us up close and personal in a way weve never seen before. These are the very first highresolution images showing a Mountain Range on plutos surface. And nasa also unveiled the clearest image yet of plutos moon charon. Its been nearly 40 years since Caitlyn Jenner secured a place in olympic history by winning gold in the decathlon, but when espn decided to give her an award tonight it wasnt for accomplishments in track and field, its for coming out to the world as transgender. And the choice is not without controversy. Nbcs Hallie Jackson has more on that. Reporter when Caitlyn Jenner accepts the arthur ashe courage award at tonights espys it will be her most highprofile appearance since this vanity fair cover went viral. There has been a bit of controversy about the selection of Caitlyn Jenner so i think everyones kind of waiting to see what she will say. Reporter online some argue athletes like swimmer Amy Van Dyken or College Basketball player lauren hill deserve the award more. Still, some of the athletes walking the red carpet here tonight argue jenners journey, coming out as transgender, shows the kind of courage that goes beyond the world of sport. Shes defining who she is. And so maybe she will inspire a younger person to be their true self you know sooner. Reporter a Younger Generation may only jenner from the kardashian reality show and her own upcoming series on our Sister Network e . But for years as bruce jenner she was a National Sports icon an olympic Gold Medalist on the cover of wheaties boxes. Espy producer maura mant tells Sports Illustrated bruce jenner could have easily gone off into the sunset as this American Hero and never have dealt with this publicly. Doing so took enormous courage. A highly anticipated award for a woman making headlines worldwide. Hallie jackson, nbc news, los angeles. When we come back the story of how a man and his dog have become viral stars for the moving journey [music] jackies heart attack didnt come with a warning. Today her doctor has her on a bayer aspirin regimen to help reduce the risk of another one. If youve had a heart attack be sure to talk to your doctor before you begin an aspirin regimen. Prep trauma unit 5. Whatve we got . Bp 64 40 sterilize sites. Multiple foreign objects in the body. Tweezers. buzz buzz if youre the guy from the operation game, you get operated on. Its what you do. buzz if you want to save fifteen percent or more on Car Insurance you switch to geico. Its what you do. When a moment spontaneously turns romantic why pause to take a pill . And why stop what youre doing to find a bathroom . With cialis for daily use, you dont have to plan around either. 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Com finally tonight, two travelers who show just how far well go for our best friends. A man and his dog have racked up more than 100,000 fans online with pictures of themselves crisscrossing the country. And while the end of the road is near these two are proof that life is all about the journey. Heres harry smith. Reporter letting go of a loved one is never easy. And what youre looking at is a scrapbook of goodbyes. Neil rodriguez and his 15yearold dog poh have been on the road. We found out he was sick and we had a choice. Either we wait at home for the inevitable or we try to give him one last big adventure. Reporter the vet told neil pohs time was limited. So theyve been everywhere. San francisco, las vegas, new orleans, d. C. Poh was moping at home and the world was waiting outside. What better than having him walk around on a beach, take a nap with the sun on his snout . You know the wind breezing through his ears. Nothing better. Reporter rodriguez says its the least he can do. He is definitely my family. Hes my child. So to be able to take care of him now when he needs me the most i think is its been great. Reporter rodriguez insists this isnt sad. He wants to remind people of the love you can find when you adopt a dog as he did from a shelter. Today they stopped at one in florida. Its really rare that i ever think about poh passing. All we think about is you know the fun. Reporter and from the look on his face poh agrees. Harry smith, nbc news new york. Friends to the end. Thats going to do it for us on this wednesday. Im lester holt. For all of us at nbc news, thank you for watching and good night. Jenners big night at the espy awards. Did she really hire an je lee thats stylist . The big moment at the espy awards. And lost video, kim and bruce the last time they came together. Now theyre asking me together. And cracking jokes and all new scenes from her tv series. Now i know why girls need a sports bra. And kendall shocks again a daring top. Chris browns home invasion. His aunt locked inside the closet as intruders bust in. Were they members of browns own entourage. And unleashing a dog on the bow ties. Plus is this ben the next bachelor. Do you want to be the bachelor or not . And amy schumers World Domination tour continues. Now on