Headquarters in new york this is nbc nightly news. Reporting tonight, Thomas Roberts. Good evening. We start tonight with donald trump. Gop president ial contenders latest remarks in iowa about senator john mccains military record landed trump in the political crosshairs. He said mccain is not a war hero. So far trump operates with a no apology, no guts no glory approach. That one style has the billionaire business polls the frontrunner. Will insulting john mccains vietnam record help or hurt trump . Kelly odonnell and chuck todd in washington, d. C. We begin in mes, iowa. Reporter this is a daylong event of about 3,000 conservatives who are hearing from 10 of the president ial candidates. Then something unexpected and outrageous flew out of the mouth of donald trump. Now the whole gop race is feeling the turmoil. Thank you. Reporter on stage in ames, iowa. Look at that. Reporter donald trump speak first, think later bravado was on full speed. Hes not a war hero. Hes a war hero because he was captured. Reporter it followed a simple question who asked if trumps frequent criticism of mccain made him appear less than president ial. Hes a war hero because he was captured. And i cant believe perhaps hes a war hero reporter twitter lit up as other candidates deannounced trump. Jeb bunch, enough with the slanderous attacks. Rick perry declared trump unfit to be commander in chief. While scott walker ignored trump but called mccain an american hero. Mike huckabee today. Donald trump will need to determine whether thats a statement he would walk back on. Reporter trump facing off with reporters would like to soften his remarks. Im not blaming john mccain for being captured. Reporter 69yearold trump, who did not serve in the military said student deferment and a foot problem kept him out of serving. Todays outburst began after trump lit a fuse over illegal immigration. In his home state of arizona, the senator accused him of bringing out the crazy. Called them a bunch of crazies. That was an amazing crowd of people. Those were great americans at the event. Reporter tonight senator john mccain is not commenting publicly. His daughter megan said she was horrified and disgusted by trumps remarks. And up until today said that both trump and mccain are friends, so he tried to stay out of it. And trump is of course a enjoying the attention. Kelly, thank you. And for more on all of this, were joined by chuck todd moderator of meet the press. Chuck, are trumps comments crossing the line of no return here . It was never a matter of if but when he would alienate the entire Republican Party. He did that today. Going after maliciously and personally as trump did is probably going to backfire and might turn off some of the same voters he was attracting with his bombbastic style. There are a number of issues that confront the gop. And many of the candidates going forward. Do they start boycotting events where trump is invited . Ive already talked to campaigns before today that have been expressing trepidation about being on stage with trump for fear just his presence would make Barnum Bailey plush. He has no qualms about scorch politics. He will smear anyone or anything if they criticize him. He was upset over that criticism by john mccain. Look thomas i think he may have passed the point of no return. The only risk by the Republican Party by pushing him away is the fact that trump could take his ball and say i will run as an inspect and truly muck up the process. I know chuck, you will have much more on the trump factor tomorrow on meet the press. We will see you then. Now the other story were following. Today a Navy Petty Officer died of wounds suffered in one of the attacks, bringing the number to five Service Members killed. Miguel almaguer has more tonight from chattanooga reporter two separate military facilities is exactly what worries the fbi. Investigators have not yet ruled this as an act of terror. They are following 200 leads, poring over the suspects life. As the fbi combs through more physical evidence today gnat far from the bulletriddled window more flags and flowers, heartbreak and tears. No words can express the devastation that we feel for not only our community but our nation. Reporter the fifth service officer, randall smith, died from his wounds today. He was married with three small children. Its heartbreaking to know that this has happened in our hometown. Reporter the shock here has now turned to sadness. Tributes line the streets in chattanooga, honoring smith, the four marines killed thursday and the Police Sergeant who is recovering tonight. But some worry among all this pain there could still be more violence. He represents the ideology that is an enemy of ours. Reporter dr. Ali feels backlash against the muslim community. I feel the most vulnerable individuals may be targeted. Reporter Mohammad Youssuf abdulazeez were learning more about a troubling period in his home life. In 2009 his mother filed for divorce, saying she was repeatedly beaten by the gunmans father a that her children were occasionally struck and berated without proof vacation or justification. Its unclear whether he disputed the allegation but the couple remained married. His life under the microscope. Theyre looking at credit card receipts phone records, travel documentation. Theyre interviewing all of his coworkers family friends, neighbors reporter tonight there are still no answers, no official motive. Now with five Service Members dead the bloodshed is over, but the heartbreak here is just beginning. In the wake of the tragedy here many are asking why military officials who work at Recruitment Centers like this one are not allowed to be armed. Late today several governors in different states ordered emergency orders saying the National Guard should in fact be armed when they are working facilities just like this one. Thomas . Miguel thank you. Overseas in iraq isis claimed responsibility for a huge bomb attack northeast of baghdad. Officials say as many as 130 people were killed and 20 missing after a suicide bomber drove a truck into a crowded market. Most of the victims were shiites celebrating the end of ramadan. The white house issued a statement condemning the attack. A brutal 24 hours in Southern California as firefighters battle several wildfires, including one that jumped onto a busy freeway last night that forced drivers from their cars and destroyed dozens of vehicles. We have that story from nbcs Gadi Schwartz reporter there is fibers heavy fire. A freeway firestorm. We were really scared. People crying kids crying. Reporter traffic at a stand still. Flames devouring car after car from l. A. To las vegas. The flames were already in the truck. The car parked on the outside edge when the fire hit it. It burnt all the side, the back, cooler reporter dozens of people running for their lives. It was just scary because the fire was surrounding. We found a woman and she helped us. Reporter 11 structured burned. Families are checking tow yards for the cars they abandoned. Many saved by the air drops overhead. But others werent so lucky. Today fire crews are frustrated saying they should have been there sooner but hobby drones kept away. How many were there . There were five. Five drones . Right. Reporter the small drones are extremely dangerous to everyone involved. Two of the drones pursued our lead plane. One underneath one actually flying over the top. Were talking about a situation where dozens of people could have been killed. Reporter last night another fire about 20 miles away flared up forcing hundreds to evacuate including a camp for children who were hearing impaired. No major injuries reported so far at either fire. But terrifying moment ones and a vivid reminder of how fast a fire can move. Some tense moments today in Columbia South carolina where passions are still running high after the removal of the Confederate Flag from the statehouse grounds eight days ago. Supporters and a opponents took to the streets today for separate rallies that got heated at times. More tonight from nbcs charles hadlock. Reporter the grounds of the South Carolina statehouse today divided once again. North and south, black and white. On the north steps, a small rally by the black educators for justice, a radicaloff shoot of the black panther party. Ku klux klan their first march in 26 years. Im hear for my poor fathers who died under this flag. Reporter demanding the flag be returned to statehouse grounds. Enraged that South Carolina lawmakers voted last week to remove the flag following the massacre of the emanuel nine the pro dominantly black church allegedly gunned down by dylann roof. He posed with Confederate Flags. Kkk, domestic terrorism reporter if the plan was hoping for support from the majority of the crowd, they got none. Go back home. Reporter the klan has a few thousand members nationwide. This whole United States is going to be flooded. Reporter but the Southern Poverty Law Center say the klan is a shadow of its former self. It is fractured, small, poorly led, and really very weak. Reporter it is estimated there were 5 million members at its peak in 1925. 42,000 in 1965 and fewer than 4,000 in 23 fractured groups. Real or not, the emotions divided the state house grounds once again today. State police say there were only about 35 can klansman. They were well out numbered by the hundreds who heckled them until they left the state house grounds. Charles, thank you. When nightly news continues this saturday the new warning about lyme disease as the illness continues to spread whats old is new again. Why vegas is the place where put your hand over your heart. Is it beating . Good then my nutrition heart health mix is for you. Its a wholesome blend of peanuts, pecans and other delicious nuts specially mixed for people with hearts. I said people with hearts. Because Hearts Health is important. Thats why ive researched optimized and packaged this mix just for you. Not you. So if you have a heart start optimizing your nutrition with my nutrition. Planters. Nutrition starts with nut. [music] jackies heart attack didnt come with a warning. Today her doctor has her on a bayer aspirin regimen to help reduce the risk of another one. If youve had a heart attack be sure to talk to your doctor before you begin an aspirin regimen. So what im saying is, people like options. When you take geico, you can call them anytime you feel like saving money. 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It hydrates, eases and softens to unblock your system naturally so you have peace of mind from start to finish. Love your laxative. Miralax. Were back with health news tonight. New concern about the spread of lyme disease, a frustrating and debilitating problem. The cdc came out with new numbers on how the disease is affecting more and more people and where. We get details tonight from nbcs anne thompson. Reporter 16yearold christina is in many ways a typical teenager. Two years ago faced a i not so typical problem. I was getting sore muscles, sore joints. It would be tough to get down my stairs from my bed in the morning. Reporter suddenly a field hockey goalie was sidelined. How frustrating was it when you didnt know what was wrong with it . It was aggravating because everybody kept saying youre a teenager. Youre tired. Youre not getting enough sleep reporter it wasnt Chronic Fatigue or lack of sleep but lyme disease, an increasing problem in the northeast and North Central u. S. According to a new study by the centers for Disease Control. It says the number of counties in the northeast with the high incidence of hraoeupl increased between 1993 and 2012. 250 in the North Central states. And the problem is moving further north and west. Why . Kirsten kirsten, the lead author says there are numerous answers. There is dispersal of infected ticks by animals that carry them there. Reporter deer, mice and birds cancan carry the infected ticks that spread the disease. Your brain is working pretty well . Reporter pretty well. Just occasional headaches reporter as a lyme disease specialist in new york. Have you noticed an increase . I see the same, steady increase over the last two decade at the center for Disease Control control is seeing. Reporter the cdc suggests using an insect repellant with deet. Perform tick checks on yourself and your pets. Use finetipped tweezers to remove it. Put your clothes in the dryer on high heat. And look for the bullseye rash. We want people to be cognizant of what they can do to protect themselves and their family. Reporter so like christina, they can stay in the game. Anne thompson, nbc news, new york. Coming up were going to take you on unbelievable toenail fungus . Seriously . Smash it with Jublia Jublia is a prescription medicine proven to treat toenail fungus. Use jublia as instructed by your doctor. Look at the footwork most common side effects include ingrown toenail, application site redness, itching, swelling burning or stinging, blisters, and pain. Smash it make the call and ask your doctor if jublia is right for you. New larger size now available. Americans. Were living longer than ever. As we age, certain nutrients. Become especially important. From the makers of one a day fiftyplus. New one a day proactive sixtyfive plus. With high potency vitamin b12. And more vitamin d. [announcer ] what if one stalk of broccoli could protect you from cancer . What if one push up could prevent Heart Disease . [man grunts] one wishful thinking, right . But there is one step you can take to help prevent another serious disease pneumococcal pneumonia. One dose of the prevnar 13® vaccine can help protect you. From pneumococcal pneumonia, an illness that can cause coughing, chest pain difficulty breathing and may even put you in the hospital. Prevnar 13 ® is used in adults 50 and older to help prevent infections from 13 strains of the bacteria that cause pneumococcal pneumonia. You should not receive prevnar 13 ® if youve had a severe allergic reaction to the vaccine or its ingredients if you have a weakened immune system, you may have a lower response to the vaccine. Common side effects were pain, redness, or swelling at the injection site. Limited arm movement, fatigue, head ache muscle or joint pain less appetite, chills, or rash. Even if youve already been vaccinated with another pneumonia vaccine, prevnar 13® may help provide additional protection. Get this one done. Ask your healthcare professional about prevnar 13® today. The scene today in st. Andrews andrews, scotland where fierce winds forced play to stop. Weather gave new meaning to controlling the ball. It lasted 10 hours. The third round tomorrow and the final round on monday the first time that has happened since 1988. On this side the atlantic, an exciting discovery, debris from an unknown shipwreck. A team of scientists on this Research Vessel stumbled across the debris including bricks glass bottles and pottery off the coast of north carolina. The wreck is about one mile deep. The ship may have sunk around the time of the american revelation. A new way of looking at some of the worlds greatest landmarks, from the eiffel tower and el capitan, the Vertical Rock formation thats one of the hardest in the world to climb. Thanks to google you dont have to be a climber to get an epic view. Here with more is nbcs hallie jackson. Reporter climbing el capitan looks impossible. So Tommy Caldwell and Kevin Jorgeson captured it the world watched as they finished the historic climb. This is the most that has been so many years in the making. Whoo reporter to get to the top, it took them nearly three weeks and a good grip. But with googles new street view it will take you three seconds with good wifi. Now you can click through the climb as google hits to new heights. To see that world through my eyes. Reporter caldwell and climbing partners snapped these stunning 360degree shots. I think you can actually wrap it. Reporter photographing one of the biggest attractions at yosemite. The scenery as spectacular at night as it is during the day. The newest addition to a street view from the galapagos to the grand canyon. I want to inspire people to find the sense of adventure themselves. Reporter to find your inner explorer just use a map. Sure its not the real thing. But here it is no less epic. Hallie jackson, nbc news. Epic indeed. When we come back vegas. Why the famed deft admission is getting a second wind. My constipation and belly pain feel like a raging storm. Ive tried laxatives but my symptoms keep returning. My constipation feels like a heavy weight that keeps coming back. Vo linzess can help. Oncedaily linzess treats adults with ibs with constipation or chronic constipation. Linzess is thought to help calm painsensing nerves and accelerate bowel movements. Linzess helps you proactively manage your symptoms. Do not give linzess to children under 6, and it should not be given to children 6 to 17. It may harm them. Dont take linzess if you have a bowel blockage. Get immediate help if you develop unusual or severe stomach pain especially with bloody or black stools. The most common side effect is diarrhea, sometimes severe