Swamps for the golf course. And its better for business than you might think. Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening, everyone. Im Savannah Guthrie in tonight for lester. We begin with donald trump in fiery form today, under pressure to reveal where the millions he claimed to raise for veterans several months ago had actually gone. Tonight we follow the money, where the donations end up, how recently some of those donations were made and what had trump blasting away at his favorite target today, the media. Hallie, good evening. Reporter good evening, savannah. We are learning late tonight donald trump may have a new conservative challenger, that mystery candidate, mull pl sources telling us writer david french is considering an independent run. But without money or name recognition, hes a long shot to say the least to take on trump who tonight is facing new questions and firing back. For 39 minutes, a fiery roast. Youre a sleaze. Ive watched you on television. Youre a real beauty. Reporter a comb combative News Conference i find the Political Press to be unbelievely dishonest. Reporter donald trump angry for claims he raised 6 million at a veterans fundraiser four months ago. Who got that money, when did they get it and why did it take so long to get it to them . I have raised a tremendous amount of money for the vets. Instead of being like, thank you very much, mr. Trump, or trump did a good job, everybodys saying, who got it, who got it, who got it, and you make me look very bad. Reporter trump today listing the donations totaling 5. 6 million to 41 different charities, including 1 million of his own money. Nbc news now confirms nearly a third of the total, 1. 9 million, has only been dispersed in the last week after growing pressure on trump about the status of those donations. I wanted to keep it private because i dont think its anybodys business if i want to send money to the vets. Reporter that came from a public rally. At the time, trump slamming his fellow republicans, doing so again today, even after promising a path toward party unity. Bill crystal is a lizard. Reporter and former gop nominee mitt romney. If i have a republican thats not on my side, im not going to why should i be particularly nice to that person . Reporter new mexico governor su sana mart easy. He said this is how he would be at the white house, with one in ten voters giving him the high marks to be commander in chief. Do you need a thicker skin to run for this office . Its bothersome because i love the vets. I think when the press portrays it differently, its dishonest. Reporter hallie jackson, nbc news, new york. This is Andrea Mitchell as Bernie Sanders fires up a california crowd, Hillary Clintons campaign is sensing danger there. Some polls showing a tightening race. Clinton is now shifting her campaign out west for most of the week. And tonight phoning in to msnbc. Are you nervous about california . Well, im feeling very positive about my campaign in california. Reporter but while clinton spent memorial day at her neighborhood parade in chappaq chappaqua, sanders has been camped out in the golden state. Some of the scientists may think theres an earthquake going on here. Reporter last night at the warriors game comparing his campaign to the teams comeback. Clinton got some backup today, support from jerry brown. Less than a ringing endorsement. Brown said he will vote for her to stop donald trump. But he also said he was deeply impressed with Bernie Sanders. Brown ran against bill clinton in 1992. Accusing Hillary Clintons law practice of conflict of interest with her husband, then the arkansas governor. You ought to be ashamed of yourself for jumping on my wife. I tell you what, mr. Clinton, dont try to escape it. Reporter why does california matter . For sanders, it would mean more leverage heading into the convention. For clinton she would like to win it, and win it big. Doesnt want to limp to the nomination. Wants to begin to put the party together. Winning it would be very important. Drumming up fear of a Trump Victory to eventually win the sanders people over to her. Savannah . Andrea mitchell in washington, thank you. Now it the growing outrage over that gorilla killed when a boy fell through the enclosure at the cincinnati zoo. There is late word tonight that police are now looking into the actions of the boys parents but not the operation of the zoo itself. New questions about zoo safety nationwide. Reporter tonight Cincinnati Police confirm, they are reviewing the actions of the parents that led to this. The 3yearold boy fell into the gorilla enclosure saturday. The 420pound silverback dragged the child through the water. Zoo Officials Say they had no choice, firing a fatal shot at 17yearold haramba, fearing he would kill the boy who is now doing well. Activists filed a complaint against the cincinnati zoo. We believe this enclosure must violate either the requirements for a physical barrier around the enclosure or for a perimeter fence if there was an adequate physical barrier, we wouldnt be here. Reporter this isnt the first incident at the zoo. In march, two polar bears breached security, forcing visitors to shelter in place when the animals wandered into a Service Hallway behind their enclosure. Keepers and people were not in any danger. Reporter in 2008 also an escape, biting a man on the leg at the same zoo. In 2000, a cheetah also broke free. No comment today from officials in cincinnati. The group born free usa says since 1990, there have been more than 100 incidents of animals injuring humans, including at least 15 deaths at accredited zoos. Our fence right here reporter in miami, zookeepers stress enclosure guidelines are in place to keep everyone safe. All zoos are going to be reevaluating their barriers right now. Reporter back in cincinnati, tonight the investigation is under way, with the exhibit set to reopen saturday. Miguel almaguer, nbc news. Deep in the heart of texas, the water is rising tonight. Unrelenting rain has led to historic flooding there. Neighborhoods swamped, residents on the run, and the waterweary region is bracing for yet another onslaught. Gabe gutierrez with more from south texas. Reporter this part of the brazos river has never creeped this high, cresting this afternoon, flooding homes, displayinging families. The devastation stretching for miles. My family told me to get out. The water was about this much from entering the house. Reporter on the ground, search and rescue teams on the move. More mandatory evacuations under way. The water just kept rising. It got to at least six inches inside the house. Reporter maria pulled from her flooded home as the waters rose. Did you lose your home . Everything. Everything. Reporter today the weather related death toll in texas climbed to nine. They found the body of a 10yearold boy who drowned. Several attention as rivers cresting at historic levels. The brazos topping 53 feet, breaking a record. The colorado more than 46. The Trinity River at almost 30 feet. Expected to stay there through sunday. We never expected anything like this. Reporter Yolanda Gonzalez has lived in rosenberg almost 30 years. Very hard. We got more rain coming our way. Reporter the worst is going to start to come late this week, on into the early part of the weekend. Were talking about anywhere from 7 to 8 inches of rain in parts of central texas. We cant rule out upwards of 10 inches causing massive flooding. Reporter in a state not long ago ravaged by drought. Tonight the water has nowhere to go. Live pictures overhead. A neighborhood in rosenberg that is underwater. The mayor has declared a state of disaster in this city, and has just expanded the mandatory evacuation zone. Many roads are impassable and blocked 06. And local officials are calling this flooding unprecedented and are dreading the thought of more rain in the forecast. Savannah . Gabe, thank you. A shocking road rage incident out of florida. It was caught on tape. A driver facing charges tonight in tampa accused of running right over a motorcycle with two riders. Nbcs Kerry Sanders has the jawdropping video taken as it all unfolded. Reporter car versus motorcycle, a road rage incident captured on a cell phone. In slow motion the car turns right, then accelerates, right over the motorcycle. Did you think this guy was trying to kill you. Yeah. Absolutely. Without a doubt. Reporter joseph, a navy vet, and melanie were returning with friends from a memorial day observance in florida when a driver of a car began to weave in and around traffic. They all ended up at a red light and words were exchanged. The window was already down when we pulled up next to him. And he said i cant say it on tv. You said . I cant say that on tv either. Reporter he has a broken leg. His girlfriend, melanie, a painful road rash. Take a look at the video. What do you think when you look at that . Shivers down my spine watching it. Mortified. Absolutely. I get chills. Reporter the driver, 31yearold robert vance, who according to the Police Report admitted to hitting the motorcycle and leaving the scene before he was arrested. The florida Highway Patrol said vance already had his license suspended, is a habitual offender. Road rage incidents are on the increase. According to recent federal statistics, the number of road rage fatalities jumped from 262 in 2010 to 379 in 2014. This is going to be fun. Reporter tonight two motorcycle riders, lucky theyre not also statistics. Kerry sanders, nbc news, tampa. Important changes tonight in the guidance over the zika virus. The World Health Organization said if you have traveled to a country with an outbreak of zika, you should practice safe sex or abstain for eight weeks, double the previous guidance. Men are advised to wait six months before trying to conceive with their partners. In chicago, the memorial day weekend was a shockingly violent one. Over three days, 68 people were shot. To put that in perspective, thats more people shot in one weekend than wounded in a typical month in iraq. Theyre now leaning on technology to pinpoint who is likely the next perpetrator. And victim. Ron mot rt tonight with the story. Every morning you wake up, someone shot. Reporter her son, garvin whitmore, father of two, veronica lopez, just 15 i just want my baby. Reporter new victims. Shootings up 55 , murder 65 higher than a year ago. Summer, historically, even more bloodshed. Daunting challenge for Eddie Johnson and his top cops. How is all of this helping to keep people from killing each other . Relying on demographics to i. D. Potential shooters based on factors like whether theyve been shot before, how many of their friends who have criminal records. Were targeting the individuals on the list that are known gang members who continuously terrorize the neighborhoods. We know who they are. We know where they live. We know what they do. And we do arrest them. Reporter days after police knocked on shania browns door, warning her son was on a watch list, 19yearold tyrone cage was arrested, his fourth arrest. Its tough. Every day i wake up to the same stuff, watch the news, same thing happening every day. Reporter this Police Outreach has helped tyrone apply for jobs, an outcome theyre trying to replicate before its too late. We talk about a gang culture that starts almost at birth. By the time theyre 12, their destiny is set. And its either prison or death. Reporter flashes of hope in a seemingly endless line of fire. Honey, we are busy right now. Reporter ron mott, nbc news, chicago. Still ahead tonight, the mother who gave birth to one baby, but got charged for two. Where you can turn for help. The viral video of the day, golfers letting this particular visitor go letting this particular visitor go ahead a if you have postmenopausal osteoporosis and a high risk for fracture. 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Nbcs Olivia Sterns on where you can turn. Reporter cindy and her husband, ed, planned everything for their first baby, eleanor. But complications for a csection at the hospital, thats when they got an even bigger surprise. Anesthesia bills for two births. Vaginal delivery and se senior yan. But i only had one baby. Reporter over 14 months, the bills kept coming. From some 20 Different Health care providers. So you got 40,000 in bills total . Yeah. Reporter thats when she went online and found help from medical Discovery Services which discovered several errors in the paperwork. She was double bild for anesthesia and billed for tests that should have been covered by insurance. In the end, cindys 40,000 became 8,000 out of pocket, and medical Recovery Services got that down to 1,700. You would be shocked and surprised how many errors that we do see on a daily basis. Reporter in fact, some studies found up to 80 of medical bills contain errors. The problem so widespread that half of employers now offer medical bill advocates as a free benefit. To find an advocate, contact organizations like claims. Org, know that many charge for their service, cindy paid a 1,600 fee after saving 1,400. Back in florida, cindy had some good news. Were due around christmas. Thats really exciting. Reporter this time, praying not just for an easy delivery, but also an easy time with those bills. Olivia sterns, nbc news, sarasota. Were back in a moment with the surfers stunning comeback after a shark surfers stunning comeback after a shark at for adults with advanced nonsmall cell lung cancer surfers stunning comeback after a shark at previously treated with platinumbased chemotherapy, including those with an abnormal alk or e. G. F. R. Gene whove tried an fdaapproved targeted therapy, this is big. A chance to live longer with opdivo, nivolumab. Opdivo demonstrated longer life and is the most prescribed immunotherapy for these patients. 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Tell your doctor about all your medical conditions, including immune system problems, or if youve had an organ transplant, or lung, breathing, or liver problems. A chance to live longer. Ask your doctor about opdivo. Bristolmyers squibb thanks the patients, nurses, and physicians involved in opdivo clinical trials. Feel free to be yourself all day. Just switch from denture paste to seabond denture adhesive seals. Holds stronger than the leading paste all day. Without the ooze. Feel secure. Be yourself. With stronger, clean seabond. Fact. Theres an advil specially made for fast relief that goes to work in minutes. The only advil with a rapid release formula for rapid relief of tough pain. Look for advil filmcoated in the white box relief doesnt get any faster than this. Advil. It takes a lot of work. But i really love it. S. Im on the move all day long. And sometimes, i just dont eat the way i should. So i drink boost® to get the nutrition that im missing. 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Hamilton was just 13 years old when she lost her arm to a huge tiger shark. But now she is staging quite the amazing comeback. Now to the unbelievable sight on a florida golf course. Not a hole in one, but something else. Actually someone else that has people stopping in their tracks. Its florida. So you might expect to see an alligator here or there, just not quite like this gator as nbcs Anne Thompson shows us. Reporter talk about a hazard. A 15footlong alligator lumbered across the third hole at the Buffalo Creek golf club just north of sarasota. Charlie who shot the video said the gator is kind of a mascot at the course. You kind of learn very early on that, you know, people really arent on the menu. Just dont bother it. Dont annoy it. Certainly dont corner it, right . Just let it go. Reporter with swamps and water hazards, gators are such common sights, videos have captured it many times. But this looks like it might be more at home at jurassic park. Happy gilmore fans know what a gator on the golf course can do. An al gator bit my hand off. Oh, my gosh reporter no bites here. Just awe at this alligators golf course swagger. Anne thompson, nbc news. When we come back, how two courageous little boys became the im billy, and i quit smoking with chantix. I had a lot of doubts going in. I was a smoker. Hands down, it was, thats who i was. After one week of chantix, i knew i could quit. Along with support, Chantix Varenicline is proven to help people quit smoking. Chantix definitely helped reduce my urge to smoke. Some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. Some had seizures while taking chantix. If you have any of these, stop chantix and call your doctor right away. Tell your doctor about any history of Mental Health problems, which could get worse or of seizures. 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They faced huge challenges so early in life, but now new yorks bravest is firefighters, proudly welcoming them to their team. Nbcs joe fryer has their touching story. Reporter 4yearold river lawrence knows super heroes dont have to live in your imagination. After all, his heroes are firefighters. The ones who have been right by his side while he battles neuroblast onlya. He is pretty brave, isnt he . I think so. He doesnt think he is. But i tell him all the tinl i get my brave from him. Reporter river knows a fellow brave warrior, a 3yearold boy named trucker dukes. What sound does it make when it needs to get someone out of the way . Reporter theyre staying at the same Ronald Mcdonald house in new york, sharing the same kind of cancer. Just loves firefighters. He thinks hes a firefighter. Reporter in fact, he had no trouble forging friendships with the neighborhood firefighters. Incredible how we hit it off. He was such a cool little guy. Reporter so today new yorks Fire Department made it official. Trucker dukes and river lawrence. Reporter inside a packed auditorium, trucker and river became honorary firefighters. Welcome to the fdny, river. [ cheers and applause ] reporter the department will tell you these boys earned the honor by demonstrating incredible courage. Right after the swearingin ceremony, trucker went right to work. Today was only a formality. Hes been a part of us since the day i met him. Reporter two brave boys rewarded by firefighters who dont just put out flames, they ignite dreams. Joe fryer, nbc news, new york. That will do it for us on a tuesday night. Im Savannah Guthrie. Ill see you bright and early in the morning on today. For all of u johnny depp out partying with a mystery woman. His ex amber heard giggling as she leaves her lawyers office. New questions about her Domestic Abuse claims, now, on extra. What scandal . Johnny depp and a beautiful brunette out at a bar until 2 00 a. M. His ex amber heard under new scrutiny today. Why its possible johnny wont be charged. The police say that they saw no evidence, so what does that mean . Everybody hates chad. Starting off a little naggy here. Bachelorette jojos new bad boy. What we just uncovered that might change your mind about chad. Jessica simpson in a star spangled bikini. Its the extra feed bikini edition. My girl eva instagraming her honeymoon and giving out the top secret location. Plus, lady gaga and David Letterman at the indy 500. Why dave is saying this. I have every intention of faking my own megan fox out with brian austin green, telling renee about getting pregnant after they split. Plus, howie mandel roasting