$700 million. once and for all, what are the luckiest numbers? good evening, and it's great to have you with us here on a wednesday night, and we begin with president trump going on the attack in front of those supporters overnight. a welcoming crowd where he defended his handling of shortsville, a test of leadership. it was a campaign rally just seven months into his presidency in phoenix, looking to re-election. he was defiant, standing by his decisions and his words, and then today, another speech and a starkly different tone. abc's senior white house correspondent, cecilia vega, leading us off. >> reporter: at the american legion today, president trump calling on the nation to come together. >> it is time to heal the wounds that divide us and to seek a new unity based on the common values that unite us. >> reporter: it came just hours after his own divisive rhetoric in phoenix. for 75 fiery minutes, he unloaded. defending his response to charlottesville, pulling from his pocket the statements he made in the wake of the violence. >> i hit them with neo-nazi. i hit them with everything. i got the white supremacists, the neo-nazi. i got them all in there. let's see. kkk, we have kkk. i got them all. so they're having a hard time. so what did they say, right? it should have been sooner. he's a racist. >> reporter: but the president never mentioned his most controversial line of all. the moment he blamed both sides and praised some of the people who marched with torches. >> you had some very bad people in that group. but you also had people that were very fine people on both sides. >> reporter: but in phoenix, he unleashed. his press secretary had promised, "there would be no discussion," of pardoning arizona's controversial sheriff joe arpaio. but just hours later -- >> do the people in this room like sheriff joe? [ cheers and applause ] i'll make a prediction. i think he's going to be just fine. okay? but, but i won't do it tonight because i don't want to cause any controversy. is that okay? >> reporter: and he vowed to shut down the government if he doesn't get money to build his border wall. >> the obstructionist democrats would like us not to do it but believe me we have to close down our government. we're building that wall. >> reporter: through it all, the president blaming the media for one of his worst weeks so far. >> i really think they don't like our country. i really believe that. >> reporter: from the media platform, i used my phone to record the jeers of the crowd. outside, thousands of protestors rallied against the president. police using tear gas to break up the crowds. also expressing opposition, the former director of national intelligence under president obama, questioning this commander in chief is fit for office. >> having some understanding of the levers that a president can exercise, i worry about, frankly, you know, the access to the nuclear codes. >> cecilia vega live at the white house tonight, and cecilia, "the new york times" is reporting on the president's relationship with senate majority leader, mitch mcconnell, a republican of course. saying they haven't spoken since an angry phone call several weeks ago. now tonight, senator mcconnell's team is responding and so is the white house? >> reporter: both sides, david. the paper says that during this call, the president accused mitch mcconnell of bungling health care, and what he sees as the leader's failure to protect him, and mcconnell's side responding today. they are dismissing this story just a few moments ago. the white house responded saying both sides will meet after the august recess and that the president and mitch mcconnell remain, quote, united on shared priorities, david. >> thank you. we turn nooext here to the hurricane watch at this hour. harvey gaining strength in the gulf. evacuations will begin in the morning, in parts of texas. it would be the first to make u.s. landfall this season. they are alreadifying sandbags on south padre island, and in corpus christi, this store, shelves empty. let's get to ginger zee. she is tracking it for us. >> reporter: those shelves empty for good reason, because there is real risk of loss and life of property this weekend in texas. let me take you to the maps, david. you see the low, still the remnants of harvey. became a tropical depression, and it's slowly moving to the west. the path takes us friday into saturday right there. just north of brownsville into corpus christi, into texas. the hurricane watch is in effect. along that coast, but i can't tell you -- i cannot make this big enough, the rain, up to 20 implgs. we have seen tropical storms like allison do more damage than hurricanes can. you have to pay attention. >> a lot of rain. thank you. to the mystery deepening. we have reported on several u.s. officials working in cuba, suffering symptoms so serious they were rushed home for treatment. at one point, it was blamed on some sort of sonic device. well, today the state department is being asked did anyone suffer from traumatic brain injury? tonight's victor oquendo tonight. >> reporter: tonight new details about the mysterious illness that sickened american officials in cuba. >> this is unprecedented. we have not seen this type of activity take place before. >> reporter: the state department revealing today that some of those americans had to be medically evacuated to miami for treatment and testing. >> the best equipment is not going to necessarily be on the ground in cuba. we are bringing people to the best medical experts on the mainland in the united states. >> reporter: starting in december of 2016, sources say it appears some officials were exposed to a sonic device in havana that caused serious health problems and physical symptoms including hearing loss. now sources are telling our miami station those symptoms included memory loss, loss of balance and vision issues. experts tell abc ynews that soud waves above and below the range of human hearing could potentially cause permanent damage. the state department today pressed on a report that some officials were diagnosed with injuries as severe as brain injury. >> i'm not going to confirm the medical status of any u.s. government personnel. but what has happen there is of great concern to the us government. >> reporter: the u.s. has responded by expelling two cuban diplomats earlier this year. the secretary of state recently calling it an attack and demanding answers. >> we hold the cuban authorities responsible for finding out who is carrying out these health attacks on not just our diplomats, but as you've seen now there are other cases with other diplomats as well. >> reporter: david, the cuban government has denied any involvement. right now u.s. officials say they have no idea what this was or who was behind it, david. >> victor oquendo in miami. thank you, victor. tonight, major fallout after the navy's newest fallout at sea. the commander of the 7th fleet has been dismissed. the collision was the fourth major incident in the fleet this year. two of them deadly. navy divers have located the remains of some of the ten missing sailors. more divers are expected to arrive tomorrow. we have been reporting here on the opioid crisis in america for more than a year now, and tonight, we're back on it with an extraordinary partnership between abc news and more than 60 of our affiliates to show the scope, the size, the heartbreak across this country. and tonight here, this front here in new york city. what we just discovered at jfk airport today. feint nel coming from china? here's abc's senior justice correspondent, pierre thomas tonight. >> reporter: agents in protective suits. finding the powerful opioid, feint noll from china. we're in another front with the opioid epidemic. the dea and the tempe police. today's target, alleged members of a drug ring with suspected ties to a mexican ar tell. it's time to strike. >> we found a large sum of money, and we'll continue to tear the vehicle down until we see if there is more dope in here. >> reporter: during our week long look into the crisis, others grapple with heartbreak. one family 15 miles away in kentucky, 23-year-old veronica, young and full of life doesn't make it through a weekend break from rehab. >> she was so good at hiding it. this is the first time we have heard heroin and veronica's name mentioned. >> reporter: according to the cdc, more than 33,000 americans died of opioid overdoses in 2015. >> we're hitting the main guy's house. this is the main target of this whole investigation. >> reporter: we're with dea agents that continue to take could be that suspected ring. agents searched the house. then jackpot. >> we're still searching, but we have pulled out 15 pounds of heroin. this is worth 1 million bucks. >> let's go back to what you discovered today. it's been flown into this country, you discovered? >> not just coming over the southern border. in some cases, the opioids are being chipped in from as far away as china. they are so toxic and it can cause on overdose if you touch it. that's why you see the hazmat suits. >> far more powerful than the hearn itself. pierre will have much more, "one nation, overdosed." that's tonight, and hope you will watch or set your dvr. thank you. we are turn next to the first audio excerpts from hillary clinton's new book titled "what happened." she said she let millions of americans town, and she writes about when donald trump appeared to hover behind her. clinton writes about the choice she says she had to make in that moment. here tonight, abc's mary bruce. >> reporter: in her new book, hillary clinton offers a candid view of what it was like to run against donald trump. >> writing this wasn't easy. >> reporter: as she now watches his presidency play out on the news, clinton says she let down millions of her. americans. >> every day that i was a candidate, i knew millions of people were counting on me, and i couldn't bear the idea of letting them down, but i did. i kwont get the job done, and i'll have to live with that for the rest of my life. >> reporter: clinton questioned that second debate when trump hovered behind her. >> this is not okay, i thought. it was the second presidential debate, and donald trump was looming behind me. two days before, the world heard him brag about groping women. now we were on a small stage and no matter where i walked, he followed me closely, staring at me, making faces. it was incredibly uncomfortable. he was literally breathing down my neck. my skin crawled. >> reporter: she writes she had a choice. >> do you stay calm, keep smiling and carry on as if he weren't repeatedly invading your space, or do you turn, look him in the eye and say loudly and clearly, back up, you creep? get away from me. i know you love to intimidate women, but you can't intimidate me, so back up. >> reporter: she chose to say nothing, and now wondering if that was the right choice. >> maybe i have overlearned the lesson of staying calm, biting my tongue, digging my fingernails into a clenched fist. smiling all the while, determined to present a composed face to the world. >> and mary bruce with us live tonight from washington, and mary, hillary clinton will reveal a lot about the unexpected moments along the way, but she also reveals some of the high notes of her campaign? >> reporter: she also details some of those moments sheps to remember forever. her young granddaughter racing into the room as she was practicing her convention speech, and what it was like to deliver that speech and become the first woman ever nominate besidety a major party for president of the united states. >> thank you. in charlottesville, virginia tonight, the statue of robert e. lee that has become a lightning rod of controversy is now shrouded in black. they used cherry pickers to lift a massive tarp over the statue. the city proved by a unanimous vote to mourn heather heyer. next tonight here, the secretary biggest powerball ever. $700 million on the line tonight, and once and for all, what are the luckiest numbers? abc's gio benitez asked that question today. >> reporter: tonight, just hours to go before the nation finds out if someone among us becomes very rich. >> if you don't play, you can't win, that's the easy way to look at it. >> reporter: people in 44 states, d.c., the virgin islands, and puerto rico all have a chance at the $700 million dollar jackpot. the second largest in history. the lump sum, more than $440 million. what would you do with it? >> i would spend my entire life traveling the world with my wife. >> this is the lucky number. >> reporter: speaking of. did you know the luckiest numbers most drawn are 32, 64, 16, 23 and 28. the luckest red ball? 9. tonight, a look, florida lottery officials releasing video giving an inside look at the florida facility. >> this is powerball. >> reporter: the host, laura johnson ready to call those number. >> i'm thrilled at the possibility of knowing that i can change the course of somebody's life tonight. >> reporter: and this is where most lottery tickets are sold in new york city. we have quite a line already. in fact, they sold a jackpot-winning ticket just two years ago. if there is no winner tonight, we're looking at a billion dollar jackpot, david. >> about to join the line. gb g thank you so much. the concert featuring an american band canceled over terror fears. also the disturbing attack in the classroom. the school year just under way. the student taking aim at a teacher. you will see what happens and what authorities are now saying. also that shark scare off the east coast. we showed you this, and blood in the water there. tonight, we have learned of a new scare at another beach nearby. we'll have much more. and walmart and google now teaming up. they want to take on amazon, and what they are offering tonight that just might get you to try it out. we'll be right back. guy-who-used-to-ask-if-you-could -hear-him-now-with-verizon? ...or just paul. we've been up here for ages. you should switch to sprint like i did. nowadays, every network is great! but with sprint, you are not paying a ton for unlimited or overages. thanks, paul. works for me! daddy, can we switch to sprint? i don't feel too good. don't get hooked by verizon and let a 1% difference in network reliability cost you twice as much. switch to sprint unlimited for $20 per month per line for 5 lines. $20 per month per line for 5 lines. for people with hearing loss, visit sprintrelay.com. but their nutritional needs (vremain instinctual.d, that's why there's purina one true instinct. nutrient-dense, protein-rich, real meat number one. this is a different breed of nutrition. purina one, true instinct. you don't let anything lkeep you sidelined. come on! that's why you drink ensure. with 9 grams of protein, and 26 vitamins and minerals... for the strength and energy, to get back to doing what you love. ensure, always be you. next tonight, your money. google and walmart, teaming up to take on amazon, and tonight what they are offering to get american families to try it out. here's abc's linsey davis. >> reporter: word today that google, the number one search engine is joining forces with retail giant walmart. >> okay google, turn up the music. >> reporter: a partnership that promises to turn up the convenience for consumers, and could change the way we shop with hands free help from google assistant. >> okay google, turn on the hall lights. >> reporter: as of september, you would also be able to make online walmart purchases with google assistant, similar to amazon purchases with alexa. >> alexa, order trash liners. >> reporter: the companies taking direct aim at online retailing behemoth amazon which is diving further into the grocery business after recently announcing a deal to purchase whole foods. >> people may not be using these smart speakers as much now, but eventually it's going to be so integrated into our homes and lives we won't know another way to shop. >> reporter: google is also hoping to lure new customers by scrapping that $95 express membership fee, and offering free two day shipping for orders that meet the minimum. walmart's voice activated grocery shopping will be available next year, david. >> lynn say davis tonight, thanks. tonight, the concert canceled over terror fears. what authorities are now saying. also the attack in the classroom i mentioned earlier. the school year just under way, and the student attacking a teacher. what authorities are now saying. we'll be right back. it needed to be. my a1c was'e so i liked when my doctor told me that i may reach my blood sugar and a1c goals by activating what's within me with once-weekly trulicity. trulicity is not insulin. 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disturbing scene just weeks after the school year began in milwaukee. a high school arrested for attacking his teacher. the cell phone video showing a confrontation before the student starts punching the teacher at south division high school. the case now handed to the d.a.'s office skbrks the teacher is okay. the shark scare close to cape cod beach, and we showed you that video. the great white attack a seal just a few feet from shore. some are scrambling for safety, and today, a shark bit this board just 30 yards out on marconi beach. hard to believe, but we are about to mark 20 years since peter jennings brought you that headline. so many remembering where they were. when itrust the brandtburn, doctors trust. nexium 24hr is the number one choice of doctors and pharmacists for their own frequent heartburn. and all day, all night protection. when it comes to heartburn, trust nexium 24hr. 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