Pelley the teleprompter was gone today. Donald trump spoke off the cuff and took his campaign off the rails, again. This time, it was a remark that some took as a threat of violence against Hillary Clinton or the Supreme Court justices she might appoint if elected president. Here was trump in North Carolina hillary wants to abolish essentially abolish the Second Amendment. By the way, and if she gets to pick booing if she gets to pick her judges, nothing you can do, folks. Although, the Second Amendment people, maybe there is. I dont know. Pelley, of course, the Second Amendment establishes the right to bear arms. The Clinton Campaign said trump was inciting violence. Trumps campaign had another explanation. Major garrett is joining us now. Major . Trumps first impulse was to put out a statement that blamed the dishonest media. In it, the trump camp felt no need to explain what trump meant and address accusations that even indirectly, he was calling for violence against Hillary Clinton. However, scott, trump did address this roiling controversy moments ago in an interview with cbs affiliate wncn, here in North Carolina. Reporter if you could explain what you meant . Well, i think youre talking about im not sure, because i havent heard thue the power of people that are in favor of the Second Amendment,ec and they have tremendous political power, and i think they really are strong. Theyre united. Reporter even so, commentso, like this have driven away members of trumps own republican party, among them maine senator susan collins, who wrote this morning in the washington post, trumps lack of selfrestraint and his barrage of illinformed comments would make an alreadyperilous world even more so. Which endorsed trump in may, came to his defense, tweetingut that trump is right about the Supreme Court and in a second tweet, urged voters to defeat clinton with the hashtag neverhillary. Now, scott, senior trump strategist jason miller told me in a phone interview that, of course, trump was not referring to violence, only the political clout wielded by voters who are passionate about the Second Amendment. Rudy giuliani, the former new york city mayor and trumpn surrogate, amplified that message here in moments ago. Ee pelley major, thank you. But, of course, thats not the way the Clinton Campaign sees it. Nancy cordes has that. Nancy . Reporter scott, Clinton Campaign said there is no disputing what trump meant, and Campaign Manager robby mook issued this statement clintons running mate, senator tim kaine, just weighed in a reporter massachusetts senator Elizabeth Warren followed that up with this interestingly, scott, one thing one thing democrats are not expressing tonight is surprise. They note that this is the same man who encouraged violence against protesters at his rallies and who joked that he could shoot someone and still not lose votes. Pelley nancy cordes reporting. Nancy, thank you very much. Clinton opened a rally near orlando yesterday by paying tribute to the 49 people who were murdered in june at the pulse nightclub. Well, it turns out just a few feet away, wearing a red hat, was seddique mateen, the father mateen was not invited to the event. The event was open to the public. The divisions in the g. O. P. Are playing out tonight in the primary election in wisconsin. Paul ryan, the nations highest ranking elected republican, is being challenged for renomination. Heres Dean Reynolds. Reporter paul ryan is the speaker of the house and the former g. O. P. Nominee for vice president. Hes been te congress and has impeccable conservative credentials. And yet, donald trump did not endorse ryan in todaysry republican primary until just four days ago. I support and endorse our speaker of the house, paul ryan. cheers reporter just as trump was slow to come around to ryan, ryan was slow to come around to trump. And for a while, it even challenger, businessman paul nehlen. I build things, create jobs. Reporter last week, when trump thanked nehlen on twitter for your kind words, very much appreciated, nehlen went from nobody to somebody. Mr. Trump and i are absolutely crisply aligned on being against bad trade deals that paul ryan supports. Reporter the race here is symbolic of the larger split in the g. O. P. Over trump, whose base of support sees ryan as the personification of the establishment they oppose. At the eastern end of ryans st is a constituent but no fan. Paul might as well get a hillary tshirt when he gives his next speech. Reporter to the west in janesville, ryans home town, cafe owner Angela Collas says the primary here has been hot. It seems kind of crazy, chaotic, out of hand. Reporter as for paul nehlen, he says just giving ryan a run is a victory of sorts. Ic can you beat the speaker of the house . I really have already won. Reporter but when it comes time to count the actual votes here tonight, scott, most of the people we spoke to in this district believed that paul ryan will have nothing to worry about. Pelley Dean Reynolds for us tonight. Dean, thank you. Well, today in miami, Hillary Clinton called on congress to return from its vacation to pass emergency funds to fight zika virus. Florida reported today that four more people have been infected with the virus linked ir defects, and that brings the number infected by mosquitoes in the state to 21. David begnaud is in miami. Reporter the four new cases are thought to have originated in the same wynwood section of miami. Before the announcement, the mayor of miamidade county, carlos gimenez, suggested zikao is under control here. With the fact that weveh reduced the mosquito population there by about 96 , and the fact we have not had one mosquito so hopefully this was very, very contained. Reporter experts insist that finding an infected mosquito is like looking for a needle in a haystack. Every day crews in the wynwood neighborhood are clearing drains, spraying insecticide. Does the media need to have a 24hour outpost on our main street . Reporter the nationalt attention and a c. D. C. Travel advisory recommending pregnant women avoid the area is starting we did 10 of revenue on saturday. When you consider saturday is 50 of our weekly revenue, that is the impact it is having on us. Reporter 35yearold erica musser and her husband, darrell, are rethinking pregnancy because of the zika threat. Were sort of running out of time here to start a family. There have been a lot of discussions around the dinner table about whether to keep trying at this point. For my data. This is this is our lives and this is our family. Here in wynwood, Officials Say reporter here in wynwood, Officials Say insecticide spraying is working to reduce the population of the mosquito that carries the zika virus. Where they used to find about 25 in mosquito traps, theyre now finding just one. Scott, theres going to be more aerial spraying here in wynwood tomorrow morning and again this weekend. David begnaud in that one neighborhood there in miami that has seen zika transm david, thank you so much. So far, only florida is reporting local transmission of zika, but today, texas confirmed the first death of a newborn from the virus. The mother was infected in el salvador. A chemical called deet is an effective mosquito repellent, but is it safe . Heres dr. Jon lapook. Reporter 31yearold ali simon is 36 weeks pregnant and lives in new jersey. She knows zika has reepped mosquitos in the u. S. , but like insect repellent. I dont feel like its necessary for me to douse myself in chemicals until i know they need to. Reporter but the c. D. C. Has said there are insect repellent safe to use for pregnant women and refers them to a list provided by the e. P. A. Dana vogel heads the e. P. A. Division that examines the Health Effects of insecticides. All of them have been evaluated for their safety. Evat we found for deet is there is no sensitivity, extra sensitivity for pregnant women or children fromhe to deet. Reporter because of ethical consideration, most research haf been done on animals. However, one study looked at pregnant women during the second and third trimester and found using 20 deet daily was safe for both mother and baby. No products put on the market unless a safety evaluation is done and its found to be safe. Reporter she understands some womens fears around using repellents but is confident inre the science. Point in time, i would use a repellent. I know that theyre definitely safe for use, as i participated in the reviews of them. Pelley so, john, dana vogel says its safe, but how do you know which one to use . Reporter scott, she told me about matching the product to your specific needs. Deetbased products come in concentrations that range from 5 to 100 . Hig a higher number doesnt mean a product will work better. It means it will last longer. According to an Industry Trade group, 5 deet lasts about an hour, while 30 deet lasts up to eight hours. Website that can help you sort out your choices. You plug in things like how long you want protection and whether its from mosquitoes, ticks, or both, and it gives you a list of products to choose from. But remember, scott, its important to remember whatever repellent you use youve got to read the label carefully and follow those directions very, very carefully. Pelley dr. Jon lapook, thanks. Well, Delta Airlines computers are back online, but a lot of passengers stood online today at flights today after 1,000 yesterday when its Computer System crashed. More than 1,000 people were stranded last night at Tokyos Narita airport. The skies over phoenix turned ominous today when a huge cloud of dust blew in. Timelapse video shows the city as it was smothered by a thick, red cloud, and drivers were. Being warned to pull over until it passed. In tucson, some drivers had to be rescued when streets were the storms were fed by remnants of Tropical Storm javier, which hit mexico last night. In southern california, 35,000 students were kept home from school today because of smokef s from a fire burning east of los angeles. The socalled pilot fire broke out sunday and has burned about 7,000 acres. The area hadnt seen a significant fire in about half a century, so all that dried up coming up next on the cbs evening news, after a tragic death on a water slide, we wondered whos keeping amuse parks safe. And why are athletes who got caught doping allowed to compete in rio . Start at the new carfax. Com show me minivans with no reported accidents. Boom. Love it. [struggles] show me the carfax. Start your used car search at the allnew carfax. Com. Dont let dust and allergens get between you and lifes beautiful moments. Flonase gives you more complete allergy relief. Most allergy pills only control one inflammatory substance. Flonase controls 6. And six is greater than one. Ck the search for relief often leads. Here. Here. Or here. Today, theres a new option. 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Omar villafranca has been looking into the regulation of amusement parks. screaming reporter the 17story verruckt water slide sends thrill seekers down the chute on a raft at more than 60 miles per hour. But a few park visitors are now raising questions about the rides velcro safety harnesses. Paul oberhauser went on the slide two weeks ago. As soon as i hit the bottom of the first curve, the shoulder reporter oberhauser secured himself by grabbing on the rafts handles. At the end of the ride he alerted the park staff. It sounded like they were going to do something about it. T reporter with no federal inspection laws in place for waterparks, and inspection requirements varying by state, nancy cowles of the group kids in danger, says this action highlights the need for stricter national standards. I think when parents go to amusement parks, they assume somebody has made sure the ride is safe. Reporter the Industry Group that represents amusement and waterparks says their facilities are safe. Of the estimated 335 Million People who visit theme parks in the u. S. Every year, roughly 1,150 people were injured on rides in 2014. Doug conlan inspected several Schlitterbahn Waterpark for an Insurance Company. He retired before the verruckt water slide was built but mains that schlitterbahn was serious about safety. Safetywise, i would rate theyre very strong on emphasizing safety, guest safety and employee safety. Reporter in kansas,ti inspections are done by a third party. Scott, state officials are now asking to see schlitterbahns inspection records. Omar villafranca, thanks. Up next, olympic athletes sound my experience with usaa is awesome. Homeowners insurance Life Insurance automobile insurance i spent 20 years active duty being a usaa member because of my service in the military to pass that on to my kids something that makes me happy my name is roger zapata and im a usaa member for life. Usaa. We know what it means to serve. Get an insurance quote and see why 92 of our members plan to stay for life. . Gaviscon is a proven heartburn remedy that gives you fastacting, longlasting relief. Fastacting, longlasting relief, try doctorrecommended gaviscon. What muscle pain . What headache . What arthritis pain . Advil makes pain a distant memory nothing works faster stronger or longer what pain . Pelley no one is more disgusted by an athlete who cheats thath ben tracy is in rio. You might have heard of boos that cascaded here. Reporter shes the pariah in the pool. Russian Yulia Efimova, twice suspended for doping, was allowed to swim in rio after winning an appeal just days before the games began. She did it reporter last night, when 19yearold american lilly king took the gold, she left her the two have waved fingers at each other and king publicly said a sign in kings home town of evansville, indiana, was a bit more direct. King surprised many by saying u. S. Track stars Justin Gatlin and tyson gay, both previously suspended for doping, should also not compete in rio. Sports writer philip hersh has covered 17 olympic games. Are you surprised by how vocal calling out their competitors or even their teammates . All those people ragging on Yulia Efimova better be sure that their houses are made out of more solid material than glass because, you know, what ia can accuse you of, you can accuse me of. Reporter russia submitted 389 athletes for the rio olympics, but only 271 were approved after known dopers were band. But at least seven of those quietly put back on the rio roster after winning appeals. Michael phelps says more athletes should speak out about doping. U. S. Swimmer cody miller there will probably be people who miss the podium to people who dont deserve to be on the podium. And that is wrong. Reporter the president of the International OlympicCommittee Says he supports the idea of a lifetime ban for athletes that dope but, scott, i. O. C. Had the power to ban the entire russian team because of that countrys statesponsored doping program, and chose not to. Pelley ben tracy at the games. Ben, thank you. Fair warning, were about to report olympic results because its news. Its not our fault that the tv coverage is delayed. Here it is. U. S. Womens Gymnastics Team has won gold for the second straight olympics. Russia and china took silver ani 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. . . 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Which is why it can feel like your opioid pain med is slowing your insides to a crawl. Longing for a change . Have the conversation with your doctor about oic, and ask about prescription treatment options. Made on behalf of those living with chronic pain pelley pelley we end tonight on the appalachian trail, 2,200 miles from georgia to maine. The woman youre about to meet began hiking in march, and shes more than halfway. No small achievement. Heres jim axelrod. Reporter stacey kozel is different than anyone else youll find hiking the appalachian trail, and if you cant tell just by looking at her, well, thats the whole point. So, i waited until i was paralyzed to actually hike the trail. Reporter hang on, hang on. Ive never heard that sentence before. Er i know. Reporter thats right. This 41yearold woman hiking the 2,200mile appalachian trail is paralyzed. Lupus, an autoimmune disease, years ago and left her unable to move her legs. Can you feel anything while youre walking . No. I dont feel anything in my legs. Reporter her legs dont work, but her hips do. She swings them out and back,hem which is when these cutting edge electronic braces take over. There are sensors in the bottom of my foot, so when i actually stand, the sensors go up a spring in the back and tell this microprocessor they need full tension at my knees so they dont collapse. Reporter stacey has to come off the trail every few days to recharge the braces, which are not cheap 75,000 each. Hiking trail is a walk in the park compared to the fight she had with her insurance. How many times were denied . My orthoist said 12 times. Reporter did you ever come close to throwing in the towel with the Insurance Company and saying, fine, you win . Reporter through all her months of rehab and learning how to walk in the braces, stacey was motivated by inspiring others. And i thought if i could do this, you know, the next person might not have as much troubleav getting them approved. Climbing up the mountain, its tough, but once you get to the top, theres always these great views that make it all worth it, and i think the possibilities w are endless, actually. Reporter stacey kozel canr certainly talk the talk, but far more impressive, of course, is watching her walk the walk. Jim axelrod, cbs news, on the appalachian trail in new jersey. Pelley and thats the cbs evening news. For all of us at cbs news all around the world, good night. Captioning sponsored by cbs captioned by Media Access Group at wgbh keeping a close eye on storms bringing dark clouds and storms to denver. Ed greene in colorados weather center. Looks like it is just about here. You can see the flow of moisture moving up along the front range. We also know look at the lightning strikes beginning to form closer to denver. Thats because were starting to see these strikes move our way. Last hour over 400. So the storms are dying down but also shifting slightly to the east. Where we didnt have any a couple hours ago, here come a few storms moving to the south of denver. We may see a couple of showers and thunderstorms. And thats gonna be brief, theyll move through, die down, thats it. Also a cold front into a stationary front, High Pressure holding it back today. It will sink out of the way. Stationary front becomes a cold front and