>> there's a seven-point lead, clinton is prepared for the job. and only 31% think trump does. for trump for criticizing the muslim american parents of an officer killed in iraq. in a letter to trump's campaign, they said they are writing as a matter of honor with no support from any campaign, to demonstrate the character of the office demanding an apology2 but the trump campaign is not backing down. >> reporter: the republican thinking is on the defensive about the family of a fallen american muslim captain humanyan khan. >> there has to be a point in him enough is enough. >> as i said last night, as donald trump said, captain khan san american hero and we honor him and honor his family. >> reporter: the firestorm started after khan's father challenged trump at the democratic national convention. >> you have even read the united states constitution? >> reporter: trump responded questioning whether khan's wife stayed silent at the dnc because of her religion. >> she was standing there, she had nothing to say. >> reporter: trump is not television station, quote, all i did was respond and i will always respond. democratic nominee tim kaine. >> is there no limit in which this guy will suspend trashing the family of a war hero? >> former war vet want don mccain said. warren buffett said trump is afraid to release his tax returns at a rally in omaha. saying if trump would elise his tax returns before election day, so would he. >> i would be delighted to do that any time, anytime before my election. i will bring my tax return. he can bring his tax return. there are no rules against showing your tax returns for people to ask us q the items that are on there. >> prior to a campaign appearance in columbus ohio, last night, trump accused the local fire marshal of keeping thousands away from his rally because of political reasons. >> we had 1,000 people in there, they won't allow any more -- the fire marshal said he's not allowed to allow anymore even though the build will go hold many more people. i just wanted to tell you that, that's policy at its lowest. firefighter's union said occupancy levels are set to protect the public safety and we find it unfortunate that trump's campaign would question our judgment and you expect to us break the law. coming up on "cbs this morning," we will talk with eric trump, donald trump's son, about the backlash of the remarks about the family of an american muslim so long. for the first time, government a travel alert for issues within the united states. 14 cases have turned up in miami's winwood arts district. florida's governor has asked for a cdc emergency response team. hena daniels is in new york. good morning. >> good morning, anne-marie, out of those 14 cases, locally transmitted zika in the state. 12 men and two women are infected. the cdc is dispatching an the center of this zika outbreak. >> reporter: the domestic travel warning affecting miami's winwood arts district is a first for the cdc. >> we're advising pregnant women not to travel to this one mile area north of miami, and for pregnant women to work in that area to do everything possible to prevent mosquito bites. >> reporter: the unprecedented alert came after ten cases they're expecting their second son in october. >> i think it's a necessary precaution, because as far as i understand, we can get it and we wouldn't even know. >> reporter: dr. anthony fauci. >> pregnant women should be careful about making sure they protect themselves from mosquito and proper clothing but staying indoors. >> reporter: officials in florida have been aggressively praying in the outbreak area for a couple of weeks. state governor scott said funding is critical. >> it's important that we have research. the federal government needs to be a partner in this. >> reporter: for now, feshl health official, urging women who have entered the zika affected zone in florida to least eight weeks. and zika has been linked to birth defects in babies. england's public health agency have advised mothers to-be to avoid trips to florida. the national weather service said the devastating flooding that hit ellicott city, maryland, was a once in 2,000 storm. it rushed cars around like toys. >> it's a disaster area down there. it looks like it's a war zone. >> i knew i was in trouble. and i knew this town was in serious trouble. >> cleanup operations began yesterday, but officials warned it will take the town months, if not more to recover. and we're learning more about the pilot of that hot air balloon that crashed in central texas. all 16 people on board were killed. the pilot was despite a drunk driving record. >> reporter: the hot air balloon ride came to a fiery end eight miles from the launching point. just after 7:40 a.m. on saturday, investigators believed the balloon hit high tension power lines, 140 feet in the air. the balloon was found three quarters of a mile away. >> i looked and the next thing i knew, i saw a big fireball go skip nichols was among the victims. the 49-year-old had a tlons pilot the balloon, even though court records show nichols had been arrested several times for driving while intoxicated in missouri. nichols was not required to disclose those arrests to any aviation authority. in 2009 mark and carol bersic said nichols pilot third hot air. 20 minutes into the ride the balloon trashed. out of fuel. no one was seriously hurt. the family sued and settled out of court. >> he shouldn't have been flying, and we wanted to make him accountable for it. >> reporter: even though there were 16 people in the balloon, investigators say it was not overloaded. that type of balloon can carry 20 200-pound people. omar villafranca, texas. questions why the police did not confront the gunman sooner to confront the gunman sooner to carry out the biggest shooting in history. and vice president biden and vice president biden officiates a same-sex wedding. this is the "cbs morning news." it all stath a healthy routine. that's 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are some of the headlines. "usa today" reports donald trump's advice to women who were sexually harassed at work. should do in that situation, trump said you would think she'd find another job or career. he gave response against allegations against roger ailes. "the wall street journal" reports that an fbi technician admits sending sensitive information to china. chung pleaded guilty in a new york court for information to ch ago. "the washington post" raises response for the police response in the orlando massacre. witnesses say arriving officers failed to pursue the gunman into the bathroom where he hit. the justice department is reviewing the department's actions. the gunman killed 49 people. the los angeles times report, the death of three people who attended a weekend raid east of the city. all three were in their early 20s. officials don't believe the deaths are related. >> the "the new york times" reports that gawker's founder followed his website into bankruptcy. nick denton wants a legal shield to the $140 million judgment won with hulk hogan. gawker went into chapter 11 two months ago and is for sale. and britain's daily mail said the opening ceremony of the olympics will include a staged robbery of supermodel gisele as a cautionary tale for visitors about brazil's urban dangers. still ahead -- surprise hit. the constitution shoot to the top of the book charts after the democratic national convention. nexium 24 hour for more people... to experience... complete protection from frequent heartburn. nexium 24hr. the easy-to-swallow tablet is here. see me. see me. don't stare at me. see me. see me. see me to know that psoriasis is just something that i have. i'm not contagious. see me to know that... ...i won't stop until i find what works. discover cosentyx, a different kind of medicine for moderate rity of people find clear or almost clear skin. 8 out of 10 people saw 75% skin clearance at 3 months. while the majority saw 90% clearance. do not use if you are allergic to cosentyx. before starting, you should be tested for tuberculosis. an increased risk of infections and lowered ability to fight them may occur... ...tell your doctor if you have an infection or symptoms... ...such as fever, sweats, chills, muscle aches or cough. or if you have received a vaccine or plan to. if you have inflammatory bowel disease, see me. see me. see me. on my way. find clear skin... and a clearer path forward. for a different kind of medicine, ask your dermatologist about cosentyx. ? ? a maui performer got a little look from an onlooker at little did he know it was the musician who wrote the hit, in town for the performance. mcdonald's flips the ingredients for popular menu items and a document hundreds of years old becomes a best seller. jill wagner is at the new york stock exchange with that and more. good morning, jill. good morning, anne-marie. energy stocks took a hit as oil and other fuels continue to slump. the dow fell 27 points yesterday. the s&p lost 2. new york governor andrew cuomo wants to keep registered sex offenders from playing the popular game pokemon go. cuomo said it's an effort to safe guard children who play the game. his state is making not playing the game a condition of supervised release for all sex offenders. >> mcdonald's is trying to get healthier by changing its ingredients in popular items. syrup from its guns and making chicken mcnuggets without preservatives. mcdonald's introduced kale and spinach salad. apple introduced more than 100 new and redesigned emoji characters for iphone users. there's a woman and construction worker and police officer. there's also female athletes, a pride flag and single and apple is replacing its e0 mog ji with a green water gun. the packet size version of the constitution is number two to harry potter. the constitution follows the speech of the father of a muss little soldier killed in iraq. it, anne-marie. >> it should be required reading for us all. jill wagner at the know, thank you. still to come, olympic water concerns. we will show you the pollution of local states as garbage floats across the main bay. the judges here today. (crowd cheers) and they've done it! the new chicken mcnuggets rightfully claim their gold! this is the best day- you love summer but it's tough on your feet leaving them feeling rough. discover amop? pedi perfect. it's the beauty secret that's earning five star reviews for buffing away hard, dry skin feel the difference for yourself. with amop? pedi perfect. ? the 2016 rio games start on friday. and there are some concerns about the games. athletes who have to swim in the heavily polluted ghana vara bay have been warned by health closed in the toxic stew, okay? okay? okay, swimmers? mouth closed, all right? or swim with your head out of the water. i can't wait to see who takes ohm the gold in the olympic doggy paddle. it's already known to brazil's fishermen. they have fished remote waters to avoid the sewage of rio. doctors say anyone gulping as little as three water will almost certainly get sick. one expert warns that athletes don't put their head under the water. >> the men's u.s. basketball team after a final state side tuneup. they made short work of the nigeria team in houston winningly 14 points. the u.s. has successfully won all five of its exhibition games. olympics don't open until friday but the usa women's soccer team held their first new zealand in the olympic opener. i'm anne-marie green. this is the "cbs morning news." to support my heart. eating better, keeping healthy. so that no matter what happens in the future, my "future self" will thank me. thank you! 45 years of experience has taught us: no matter what the future holds, you're always better off healthy. nature's bounty ? 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