This is the cbs evening news with scott pelley. Rose good evening. Scott is off tonight. Im charlie rose. Donald trumps sharp tongue is deepening divisions between him and the party he now leads as its standard barrier. Today he ditch canned two Top Republicans who endorsed him by declining to return the favor. And trump made more controversial remarks on the stump. Major garrett is covering the campaign. Reporter less than two weeks after a convention that labor to demonstrate party unity, donald trump today refused to endorse House Speaker paul ryan or arizona senator john mccain in their respective primary elections. I like paul, but these are horrible times for our country, trump told the washington post. We need very strong leadership, and im just not quite there yet. Ryan used almost the exact same words in may as he struggled to endorse trump. As for mccain, trump told the post, ive never been there with john mccain because ive always felt that he should have done a much better job for the vets. Trump has offered few specifics on what he would do for veterans but got a boost from Lieutenant ColonelLouis Dorfman today in virginia. A man came up to me and he handed me his purple heart. I always wanted to get the purple heart. This was much easier. Reporter trump received five draft deferments during the vietnam war. Ive regretted not serving in many ways because some of the greatest people i know have served. Reporter john bircher, a spokesman with the military order of the purple heart told us, donald trump did not get the purple heart, and theres no easy way to get it. I dont think he has any clue as to the meaning of the purple heart medal. Under attack from veterans groups, trump has tried to soften criticism of his reaction to the parents of fallen army captain humayan khan, who spoke at the Democratic National convention. Donald trump consistently smears the character of muslims. Reporter trump questioned the khans right to speak out and implied their muslim faith led to ms. Kahns silence. Betsy wilson said trump did nothing wrong. He made it fair game when he went on National Television in front of many people. Reporter inside the event, trump took on another unlikely target babies. Dont worry about that baby. I love babies. So dont worry. I love babieses i hear that baby crying, i like it reporter for decades, others in the president ial politics have felt the same. But moments later. Actually i was only can kidding. You can get the baby out of here. Reporter not long after trumps can comments about ryan and mccain were published, running mate mike pence campaigned in arizona and insist thed g. O. P. Is still united. Ryans Campaign Said it never asked for trumps endorsement. Interestingly, last night trump praiseds his opponent neilan. Rose accusationing of Sexual Harassment against fox news boss roger ailes. What if an employer treated trumps daughter ivanka that way . Trump replied today, trumps son eric was a guest on cbs this morning. Does your father stick by what he said or does he think perhaps a better answer ought to be to the attention of Human Resources and other things that we can do with respect to Sexual Harassment in the workplace . Well, there is no question, there is no question that, obviously, it should be addressed and it should be addressed strongly. Hey, listen, we all run a company. My father runs a company. We take this that is absolutely a nogo anywhere, and thats very much the case. I think what youre saying is ivanka is a strong, powerful woman. She wouldnt allow herself to be, you know, objected, you know, to it. And by the the way, you should certainly take it up with Human Resources and i think she definitely wouldals a strong person. At the same time, i dont think she would allow herself to be subjected to that and i think thats the point he was making. Rose former fox news host Gretchen Carlson is suing roger ailes for Sexual Harassment. She tweeted current fox news host megyn kelly had this oneword tweet, sigh. President obama took aim today at donald trump and at leaders of the Republican Party for not withdrawing their endorsement of him. It began with a question from our Margaret Brennan during a joint News Conference with the Prime Minister of sin singapore. Given the republican nominees recent comment about the khan family and he would consider recognizing russias annexation of crimea, does it make you question his fitness to be president . Yes. I think the republican nominee is unfit. He doesnt appear to have basic knowledge around critical issues, doesnt have the judgment, the term ermt. Hes woefully unprepared to do this job. Reporter with that scwaighting broadside, president obama singled out Republican Leaders and war hero john mccain, all of whom pledged to vote for trump despite sharply rebuking him for his public feud with the family of a fallen soldier. The question i think they have to ask themselveses is if you are repeatedly having to s say, in very strong terms, that what he has said is unacceptab unacceptable, why are you still endorsing him . Reporter speaking after a rally in virginia, trump brushed off the criticism. Hes been one of the worst president s in history of our country, and for him to be calling me out is almost an honor because he truly doesnt know what hes doing. Hes been a very, very weak president. Reporter but one g. O. P. Member did cross party lines. New york representative Richard Hanna is now the first republican congressman to back Hillary Clinton, writing in an oped today, for me, it is not enough to simply denounce his comments. He is unfit to serve our party and cannot lead this country. The president said this is not about policy. He claimed its about decency, something he says he never questioned past republican nominees mccain and mitt romney. But, charlie, some republicans are brushing it off saying look, obama and clinton sometimes discan agree and the the president is still endorsing her. Rose there is more fallout from the leak of Democratic National committee emails that reveal Party Officials favored Hillary Clinton over bernie sanders. Three top officials, including the c. E. O. , resigned today. The party chair, congresswoman harold schultz, announced her resignation last week. Today, pentagon horribles reported a 15th person infected with zika by mosquitoes imosquitoesin floridas miamid, but this one was outside the socalled zika zone in miamis wynwood neighborhood. Zika can cause severe birth defects. David begnaud reports a major effort is under way to protect women who are expecting. Women are scared to death right now. Reporter 36yearold jessica ardente is an expectant mother and a nurse practitioner. It makes it worse because you know whats out there in the news, but then you also know the medical ramifications that can happen. Reporter not to mention you live in the zika zone. Not to mention i live in the zika zone, right smack dab in the middle. Reporter following c. D. C. Recommendations, today she gave plood and urine samples to test for the presence of zika virus. She is due in january. Ardentes ob gyn is christine curry of the university of miamis Miller School of medicine. She is monitoring 12 pregnant women believed to have contracted zika while traveling. A year ago there wasnt a conversation about it and now its something thats affecting and infecting most of our hemisphere so its really changing the reproductive narrative for women all over the world. Were going to test how attracted these mosquitos are to me. Reporter dr. Matthew degennaro is a mosquito geneticist who believes zika will spread to other pockets of miamidade county. The way this will happen is not by the spread of mosquitos themselves. Its by the movement of infected people. Reporter the c. D. C. Is encouraging everyone living in areas where there are mosquitos that can carry zika to protect themselves by covering up and using repellent with deet. Deet should be miamis new perfume. Reporter today, inside the zika zone, miami police handed out free repellent to homeless people. Ardente is spending less time outdoors. How long will it take to get the results . Seven to 10 days. Reporter too long for you . Id love to know tomorrow but its not going to happen. Reporter charlie, starting tomorrow morning here in miamidade county, theyre going to begin aerial spraying against mosquitoes. Its going to happen in a 10 squaremile area right around the socalled zika zone. Rose dr. Jon lapook our chief medical correspondent has been covering the zika story from the start. Jon, there is a new case of infection in miamidade, but not in the community where the other infections were discovered. What does that mean . Reporter well, its a nontravelrelated case and the question is, is it an isolated case or does it represent a new cluster . We already know theres a hot spot of zika infection and what theyre going to have to do is what they did before go door to door and figure out are there people who are infected with zika who dont realize it . If there are theyre going to have to go in and do what they did before. Theyre going to have to get rid of Free Standing order, insecticide inside and outside the house, and kill the larvae. Rose theres a question that remains. What about the 1. 9 billion that the president has requested but congress has not authorized . Reporter my colleagues in the Health Profession are beside themselveses about this because imagine a place like florida, can which is relatively well funded and has a lot of experience taking care of mosquitos and things like that, what happens if theres an infection along the gulf coast in a small town that doesnt have the kind of resourcesourcet miami has . They may not even pick up the fact that there is an infection. And if there is an infection, then will they have the the resources to really go after it, go after the local mosquito population and get it all under control . Were talking about a mosquitoborne illness that causes birth defects and for some Reason Congress cant get it together to allocate new funding. Rose money that could make a difference. Thank you, jon. If you have questions about zika and how to protect yourself, we have a lot of information on our web site. Go to cbsnews. Com zika. Zika is a major concern in brazil where the summer olympics begin friday. Security is another. Isis has called for attacks during the games, and brazils government is now working closely with the u. S. To bolster its preparations. Ben tracy is in rio. Reporter a shootout on a rio subway in and olympic tourists running for their lives. This is just a training exercise, but the security concerns are real. At rios main airport where athletes and spectators are now arriving, soldiers with automatic weapons are standing guard. Last month, brazilian authorities, with help from the f. B. I. , arrested 12 people suspected of plotting iinspired attacks on the games. And now we have this sort of security crisis right before the olympics. Reporter Robert Muggah say security expert based in rio. He says brazils massive recession could impact the ability to fight both terrorism and crime. More than 550 million was shaved off the Public Security budget in 2016 at precisely the the moment when we need to really amp up security. Reporter already this srnlings shootouts have shut down major city streets. Gunmen stormed a hospital to free a suspected drug trafficker and killed a patient. We went on patrol with rio police, in one of the many neighborhood wheres they have worked to regain troll from drug traffickers. Do you think the people coming here from the olympics have anything to worry about . This commander says more tourists could lead to more street crimes, such as these brazen midday thefts captured on video. But 40,000 Police Officers and 38,000 soldiers are now on duty in rio. Thats double the Security Force of the 2012 london olympics and rio opened this new joint Security Operation Center today. Fact, there are 55 different Law Enforcement agencies and intelligence agencies that are going to set up shop in rio for the olympics to work with the federal police and the military police and the Intelligence Services here. Go, go, go. Reporter Julianna Doherty brought her family from vermont to see the olympics. Are you at all worried being here with your family . Im not. Reporter no . No. I think its dangerous anywhere. And, honestly, i think rios going to do just fine. Reporter but there are new concerns about security here at the main olympic park. Just this past friday, brazil fired the firm they had hired to do security screening, and, charlie, now the federal and state police will take over those jobs just days before the games begin. Rose thanks, ben. Coming up next on the cbs evening news, a multimilliondollar settlement for a family poisoned by pesticide on during a caribbean vacation. 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Live 24 7. With 24 7 digestive support. Try align, the 1 ge recommended probiotic. Terminex has agreed to pay 87 million to a family poisoned by a banned pesticide last year during a caribbean vacation. The family may suffer lifelong effects. Reporter the esmonds nightmare started last march when the family of four was exposed to toxic pesticides. The pesticide was methyl bromide, an odorless chemical banned for residential use in 1984. Terminex was fume gaith the property just below the esmond. They were advocacying on the sirenusa villa. Street every esmond is paralyzed unable to speak and battling tremors. His wife, theresa, who suffered seizures has improoufd and is looking after their twos sons who can barely move. Its highly acutely toxic and at very low levels it has chronic effects. Reporter jay felledman sent executive director of beyond pesticides. The bottom line here is just because e. P. A. Slapped a label on a product and told the pest control industry, you shall not use this in residences, doesnt mean that the law will be followed. We need much more control over how these chemicals are allowed into the environment. Reporter Court Documents show terminex knowingly used methyl bromide on the st. John property twice. They admitted to spraying the banned pesticide at a total of 14 locations including residential dillals in st. Croix and st. Thomas. Under the terms of the 87 million settlement, they will pay 10 million in criminal fines. Terminex refused to comment on the story. The department of justice is also conducting a criminal investigation. Charlie, a hearing is expected later in august. Rose thank you, that vita. And then there is this dentists recommend we floss daily but does it work . That story is coming up. With usaa is awesome. 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Bratton gets cred for keeping crime down but leaves at a time of tension between police and minority communitys. This came as a surprise today. The federal government has quietly dropped its longstanding recommendation that we floss daily for good dental health. The government acknowledged that there is no evidence that flossing prevents gum disease and cavitys. There is more news ahead. Reporter im Vladimir Duthiers. Coming up next on the cbs evening news, the ferris wheel wars come full circle. When people ask me what its like to win an olympic medal, i tell them, you already know. The medals youve earned are all around you. Your bronze. Your silver. Your gold. And Liberty Mutual insures them all. Liberty mutual is proud to insure every team usa medal won in rio, just like we protect the medals youve earned in life. Liberty stands with you. Liberty mutual insurance. Put under a microscope, we can see all the bacteria that still exists. 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You know, with chicago, obviously, we had the original wheel here. Reporter yo the first ferris wheel ever was here in chicago. George ferris about the his 264foot wheel to rival the eiffel tower. Others, hoping to attract tourist dollars, have been trying to outdo him ever since. The london eye stands 443 feet, the high roller in las vegas, 100 feet higher than that. What do you make of that . It seems to be a war. Everybody has a wheel war out there. Reporter its a wheel war. If so this is the next battle field, new york citys staten island, where the Worlds Largest wheel is currently being built. The new york wheel, at 630 feet tall, will be double the size of the stat uveliberty and open next year. Theyre drawn to megastructures which have certain shapes. Reporter rich marian is the c. E. O. Of the project. To us, its not about being the biggest. Its about having a grandness of scale and more importantly, in some ways, a grandness of place. Reporter but with dubai building a nearly 700foot wheel, new york wont hold the title of Worlds Largest for long, which leaves can chicago with something none of them can duplicate. In fact, theres only one number one, and were the first, and nobody will ever take that away from us. Reporter because sometimes history does come full circle. Vladimir duthiers, cbs news, chicago. Rose everywhere you go, cities pinning their fortunes to a wheel. Thats the cbs evening news. For scott pelley, im charlie rose. Thank you for watching. I hope youll join me first thing tomorrow for cbs this morning. Good night. Captioning sponsored by cbs captioned by Media Access Group at wgbh access. Wgbh. Org if you have medicare parts a and b and want more coverage, guess what . You could apply for a Medicare SupplementInsurance Plan whenever you want. No enrollment window. No waiting to apply. 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Why will smiths family wants him to quit ac i need to stop making movies. New revelations on shannen dohertys cancer battle. How shes relying on her mothers strength to pull through. Thank god i have her. And her scary 90210premonitiin. What did you find . A lump in breast. And a Jessica Simpson exclusive. Media scrutiny sucks. Hear her weight confessions. And her new plan to stay fit. Every day i want a cordo