Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nightly news with lester holt. Good evening in a wide footnote to the olympics, ryan lochte has been hit right where it may hurt him because of his exaggerated robbery claim. Big sponsors ending millions of dollars in endorsement deals with lochte because of his exaggerated claims about being held up on the streets of rio with his teammates. While his teammates answered questions in brazil, lochte made it back to the u. S. Before officials rooted out the whole story. Miguel almaguer has more tonight from rio. Reporter tonight in rio, the danger over, for ryan lochte, so is his partnership with four sponsors, saying we cannot condone the behaviors and values this company has long stood for. Ralph lauren will not be renewing his contract, reportedly as much as 1. 8 million. Rio police say lochte claimed he was robbed at gunpoint to cover up an october of vandalism. Today the medal winner said he apologizes for what happened over t taking full responsibility for it because i overexaggerated that story, if i hadnt done that, we wouldnt be in this mess. Lochte is in hot water with sponsors seven years after Michael Phelps lost the deal with kelloggs when he was photographed smoking marijuana. But many other brands stood by phelps before his swimming come back. Reporter Michael Phelps wasnt penalized as strongly in endorsements. 5 million and 10 million in lifetime corporate endorsements because of his shenanigans in rio. Reporter with brazil still basking in last nights closing ceremony, the ceremony of color and culture that did not disappoint. In the last games, the host country scoring its biggest win. And goal victories bringing a nation to its feet during a time when it needs a lift. Tonight in rio, the cauldron is out, but theyre still basking in olympic glory. Here in rio, theyll soon begin to break down olympic park and use that infrastructure to build new facilities like schools, meanwhile ryan lochte says he also wants to rebuild his image. Hes unsure what actions the Olympic Committee may take against him. Following this evening is the urgent fight to combat the spread of zika in and around a pair of hot zones in miami and miami beach. As the kids go back to school, theres controversy on how to stop it. We get the latest from nbcs kerry sanders. Reporter on this first day of school on miami beach in the zika zone, for the gold family, a new daily routine. I spray as my kids as a secondary precaution. Reporter the fear, not so much that the zika will harm the child, rather a child with the virus, a mosquito bite, and then that mosquito bites mom who is pregnant or soon will be. Its why today, although it was 93 degrees, students at miami beach senior high wore long sleeves for protection. With 30 homegrown zika cases in florida and more than 200 travel warnings across the united states, Officials Say the years ago when there was a race to find a vaccine for rubella, which causes severe disabilities in newborns. Rubella was generally a mild disease except if a pregnant woman got infected with rubella, the consequences to the baby could be profound. Reporter in puerto rico where zika has infected more than 13,000 patients, evidence adults may be vulnerable too. Jose gonzalez, among 3 34 on the island with zika who then got guillainbarre syndrome, which then causes paralysis. Its like having chrones. Reporter on friday, one man with zika died with that syndrome. Today floridas governor asked for federal dollars for the fight in miami. The president had requested 1. 9 billion, the president had but the funding got caught up in partisan politics, meantime dr. Fauci says louisiana and texas may be the next areas where zika may be revealed. Kerry sanders, thank you. To president ial politics now and questions swirling around donald trump and his stands on immigration, one of his signature issues. Is he backtracking on his socalled Deportation Force to round up all the undocumented immigrants in the u. S. And force them to leave the country. Months of campaigning, donald trump has made one thing abundantly clear. We will work with them, they have to go. Yes, chare theyre going to be deported. Youre going to have a Deportation Force and youre going to do it humanely. Reporter but tonight trumps immigration policy is in question. After a weekend round table with hispanic leaders. Reports trump expressed openness for a path to legalization, his team opening the door. Will that plan include a Deportation Force, the kind that you just heard in that sound bite and that he the republican primaries . To be determined. Reporter this morning trump pushed back but didnt deny that he was considering it. No, im not flipflopping, we want to come one a really fair but firm answer. Reporter immigration has been the keystone to trumps unexpected rise, his wall. Build that wall, build that wall. Reporter and hard line stance on deportation, a constant among trumps ever changing position. Donald trump needs to stay as vague as possible because he because he doesnt actually have a real immigration plan. Reporter nbc news learning from a Campaign Source a major speech on immigration thursday in battleground colorado postponed. For the most part, supporters lining up here in akron, ohio gave trump the benefit of the doubt. I have more trust in him than any of the candidates. Reporter trump is on the stage right now, hes expected to address immigration, issue remains up in the air, just like his position on the muslim ban, the federal minimum wage and his plan to fight isis. Katy tur in akron. Meantime, Hillary Clinton is facing fresh heat on a pair of familiar fronts. There are new questions about the Clinton Foundation, as donald trump demands it be shut down and bill clinton says hell step down from the board and stop raising money if his wife gets elected president. All of it coming as the clintons emails resurfaced and colin powell pushes back on what S Andrea Mitchell has it all covered. Reporter tonight with controversy over the Clinton Foundation growing, in a stunning reversal bill clinton announcing if his wife is elected he will step down from the board and will no longer raise funds for it. This has donald trump issuing new charges of pay for play charges against the foundation. Number one they should shut it down, number two they should give the money back. Running mate tim kaine turning the tables on donald trump. Before you go and attack a charity, why dont you come clean about your own business dealings. Reporter but it comes as newly released Clinton Emails from conservative watch dog Judicial Watch shows some Big Foundation owners had access to clinton through her top aid. As an example, former slim fast tycoon got a meeting with right after asking abedin. The clintons point out the charity has him proved the lives of millions. Its important for perception that the clintons not have anything directly to do with the foundation, and certainly dont know who the donors are. Reporter clinton also under fire from colin powell after she told the fbi he recommended she use personal emails. He telling people magazine, her people have been trying to pin it on me. Clinton had set up her didnt have a personal server at his home. Reporter all this as clinton fights the perception, she is not trust worthy. Andrea mitchell, london. From coast to coast, dangerous extreme weather is impacting millions. Wild fires are tearing through california, dust storms are rolling over the southwest, tornadoes have struck the northeast and midwest and residents of the deep south are still battling floodwaters, we got it all covered. Reporter this weather has ravaged lives across the u. S. In washington high winds and high temperatures fueling three fires near spokane, devouring more than 13,000 acres and dozens of homes. While the california, 10,000 firefighters are battling six wildfires burning across the state. Already hundreds of homes have been destroyed. Winds also pushing a wall of dust over phoenix, a time lapse shows the retractable roof at chase field shutting just in time. Air traffic delayed at more destructive winds in concord, massachusetts, a tornado whipping through this morning at 100 miles an hour, snapping trees and knocking out power to 1,000 residents. Giant trees just tipped over and just crushed and everythings just demolished. Look at it. Reporter twisters hitting the midwest over the weekend. If thats not a tornado, i dont know what it is. Reporter here in baton rouge, home ramona welsh, the water nearly washed away a lifetime of memories. Is it a complete loss . Just about. I would say probably about 80 . Reporter many neighborhoods are still under water, residents unable to reach their home, unsure what is left to return to. This is what president obama will see when he arrives in louisiana tomorrow, people left with nothing, just starting to put their lives back together. Tammy, thank you. Turning overseas where investigators are working to determine whos behind a suicide bombing at a wedding in turkey that killed at least 54 people. On sunday turkish officials said isis was likely responsible and the bomber was between 12 and 14 years old. But they backtracked on that saying theyre not sure whether it was a child or a grown up. In neighboring syria, it took a child to open up the worlds t we brought you the story behind this dramatic image last week, a young boy stunned and bloodied after he was rescued from aleppos rubble. He is among tens of thousands of children trapped in the war there. Reporter in aleppo, the songs and smiles never last for long, a little girl singing for her family in her home when the she wasnt hurt in the air strike, but thousands of syrias children cant say the same, like 5yearold omron whose dazed and bloodied face captured the worlds attention last week, his brother ali was also hurt, ali died on saturday. Aleppos children are in crisis. 75,000 living in a war zone, no running water, no schools. This is what play time looks like now, kids playing war. Like 11yearold mohammed, his father ali says his son has nightmares about air strikes. I hold him and kiss him and tell him its okay, ali said, on saturday, the bombs fell on his home. Mohammed was inside with his two sisters and little brother. Four children gone in one night. I want our voices, not just my voice, but all of our voices to reach the entire world, ali much more of these powerful stories on our new nbc news digital feature, aleppo children of war on our website. Still ahead tonight, one of the Fastest Growing scams in the nation. How thieves are using computer popups to get you to walk into their traps. We tracked down one of the companies behind the rip off and demand and why did the price of a life saving device skyrocket 400 . Congress wants an explanation. Making simple, smart cash back choices. With quicksilver from capital one. Youre earning unlimited 1. 5 cash back on every purchase, everywhere. Like on that new laptop. Quicksilver keeps things simple, gary. And smart, like you and i like that. I guess i am pretty smart. A when your symptoms start. Distracting you . Doctors recommend taking. Nondrowsy claritin every day of your allergy season. 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Your computer is suddenly frozen and then a popup message appears warning youve been hacked, even has a number to call. But for a few hundred dollars a computer expert promises to fix it. Tom costello went looking for one of those companies and what he found was surprising. Reporter it happened when diane hays was online one morning, warning messages and alert tones began blaring from her lap top. This would not head off and the whole computer froze and i didnt know what to do. Reporter the popup message, she had been hacked. So she called the toll free number provided. They said, we will help you immediately, were right into your computer right now. Reporter they were already into your computer . They were into the computer. Reporter she probably been scammed. The tech operator sounded suspicious, so we called. Can you tell us what kind of services you provide . We provide the Technical Support for all the devices. Reporter on the line, someone claiming to be john in the u. S. Are your services legitimate or is this just a big scam . But it turns out it is a scam. John wasnt in the and his name isnt john. We know because we tracked down the owner of the company by phone. Hes here in maryland. He apologized to us and he claimed unethical employees in india have been pushing popup ads to lure unsuspecting people like diane. Federal investigators say its a growing scam and they have got recordings. I see something that says warning. That means that your computer is one of those computers a lot of times they dont know if anything was wrong or not because theyre told theyre hacked, but then theyre fixed. Reporter dont call a number if you see a popup saying youve been hack. Never provide credit card or perm information and only use tech support from companies you know. The man in maryland said hes closing the business. Scammer offline for now. Tom costello, nbc news, annapolis, maryland. 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A shocking scene caught on camera in arkansas, a 19yearold suspect acting out in the back of a police car. Suddenly the car overturned, launching the suspect out the back window. He fled with injuries only to be recaptured later. The officer was trapped in the car but waste not want not. What some companies are doing with leftover food instead of tossing it away. . . Announcing zero for seventytwo across the entire lineup of ford cars, trucks and suvs. Plus, tagged vehicles now get a thousand smart bonus. Thats freedom from interest. And freedom to choose with ford. Americas best selling brand. . . Now get 0 financing for 72 months across the entire ford lineup, i love that my shop is part of the morning ritual around here. People rely on that first cup and i wouldnt want to mess with that. But when my back pain got bad, i couldnt sleep. I had trouble getting there on time. Then i found aleve pm. Aleve pm is the only one to combine a sleep aid plus the 12 hour strength of aleve. 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