With scott pelley. Trailing Hillary Clinton in the polls and in fundraising, growing numbers of republicans have called for lewandowskis head, including trumps children, who have prominent roles in the campaign. Today in a brief statement, a trump spokeswoman said lewandowski will no longer be working with the campaign. Even so, lewandowski continued to praise donald trump. I have had a great privilege and an honor of being part of this for the last 18 or 19 months. I have no regrets. Reporter the shakeup comes amid a series of controversies, mostly of trumps own making. The latest followed the orlando massacre, when instead of focusing on the victims, trump tweeted, appreciate the grants for being right on radical islamic terrorism. He also said he wished some of the clubgoers had been armed and fired back. Right smack between the eyes of this maniac. Reporter even the n. R. A. Said combining guns and drinking is going too far. Paul manafort, trumps chief strategist, involved. The mission now is to turn trump enter a more disciplined candidate, a big change of lewandowskis philosophy of let trump by trump. In the middle of all this chaos and confusion, an adviser to the Trump Campaign for the Upcoming Convention sent out a tweet about lewandowski. It read, ding dong, the witch is dead. He even included a helpful link to the song from the wizard of oz. Scott, a short time later that adviser resigned. Chip reid for us tonight. Chip, thank you. A man has been arrested in las vegas for allegedly attempting to assassinate donald trump. Our justice correspondent jeff pegues has the details. I love you people. I love las vegas. Reporter investigators say the attempt occurred last saturday as the candidate was holding this rally in las vegas at the Treasure Island casino. A federal Law Enforcement official tells cbs news that thisan sandford, was taken into custody after attempting to grab an officers gun. According to court document, sandford, who is a british citizen, got up from his seat and attempted to take an officers weapon by grabbing the hollister and handle with both hands. Sandford admitted to trying to shoot and kill trump, acknowledging that he would likely only be able to fire one to two rounds before he himself would be killed by police. Sandford has been in the u. S. For the last year and a half. Last thursday investigators say he drove from southern lifornia to las vegas. On june 17th, he went to battlefield vegas gun range where Authorities Say he fired 20 rounds from a nine millimeter glock pistol. Investigators say he had been planning the assassination attempt for about a year. According to court documents, he put his plan in motion because he said he finally felt confident about trying it. Trump has had secret Service Protection for the last eight months. Arrested during a rally in dayton, ohio, after he tried to rush the candidate on stage. Scott, according to court records, sandford has not yet been assigned an attorney. Pelley jeff pegues reporting for us. Jeff, thank you. Well, Vice President biden talked about trump today in an interview with our charlie rose. Biden was critical of the way trump has talked about muslims and american allies. And if we dont coop rate, if we denigrate them, if we talk about them being not particularly useful or competent, if we go out there and theres 1. 5 billion muslims in the world, if we make the religion the enemy, where the hell do you think were going to get the cooperation . Reporter but is that what donald trump is doing in your judgment . Yes. Pelley dont miss charlies newsmaking interview tonight on his pbs program and, of course, tomorrow on cbs this morning. Well, the first day of summer today began with a tripledigit heat in the southwest. The hills are on fire this evening in los angeles county. Firefighters are attacking flames from the air and on the ground. 16 large fires are burning in the west. Nearly 100,000 achers have been scorched. Some towns havent felt temperatures like this in decades. 123 in death valley, california. 122 in palm springs. And 121 in needles, arizona. Four people died hiking in arizona. John blackstone is covering the fires. Reporter this afternoon two separate wildfires ignited and merged into one massive inferno in the San Gabriel Mountains about 30 miles north of downtown los angeles. Theres a lot of homes here. Theyre really close to the fire. Reporter thick plumes of smoke hovered over densely populated neighborhoods as tankers rushed to snuff out the flames. A pilot captured this video while battling the fire from the air. Near san diego, new evacuations were ordered as a fire burning near the Mexican Border grew to 1,900 acres. Fire broke out sunday and forced about 800 people from their homes near the community of petraro. A house fire in the Los Angeles Neighborhood of silver lake jumped into vegetation then burned across two busy freeways that had to be closed on sunday. Firefighters tried to avoid succumbing to almost 100degree heat. In Santa Barbara county, the ferocious sherpa fire that started last week has devoured nearly 8,000 acres, but socalled sundowner winds, known for pushing fires down these hillsides, still pose a threat. Cal fire unit chief Scott Delbert has been directing the battle there. This is not done yet. Tonight they can surface, hit the fire and push the fire and well be back to square one. Reporter even here where left nothing but ash, this ground remains hot. Those expected sundowner winds could pick up sparks, creating new problems for firefighters already working in this recordsetting heat. Pelley john blackstone, thanks. Well, today we learned what the gunman said to the orlando 911 center after he set in motion the worst mass shooting in u. S. History. Omar mateen, who killed 49 people, pledged himself to the leader of isis in his call and in several calls to the Police Negotiator made to his cell phone. Heres David Begnaud. Oh, my god. People are getting shot, dude. [gunfire] reporter chilling, calm and deliberate is how the f. B. I. Described omar mateen when he called 911 during the rampage. The f. B. I. Released the transcript of a 50second 911 call mateen made from inside the club. Mateen in the name of god the operator what . Mateen praise be to god. Operator whats your name . Crisis negotiators talked with mateen three different times between 2 48 a. M. And 3 24. In that time mateen called himself an islamic soldier and told negotiators to stop bombing syria and iraq, saying thats why he was out here right now. Among the lingering questions for Orlando Police chief john mina is whether police inadvertently shot any bystanders. How likely is it that some of the victims may have been shot and killed by Police Gunfire in the initial attempt to save lives . Thats all part of the investigation. But heres whatly tell you those killings are on the suspect. And on the suspect alone in my mind. Reporter mina also tried to clear up misconceptions that officials did nothing during the threehour standoff between initial engagement and when mateen was killed. During that time our officers were in and out of that club, saving people, rescuing people. Reporter at 4 21 a. M. , Orlando Police pulled an air conditioner out of a window, allowing them to rescue eight hostages. At 4 29 some of those rescued told police the shooter was going to put suicide vests on the remaining victims. At 5 02 the swat team breeched a wall with an explosive. At 5 14 shots were exchanged with the gunman. 5 15, mateen was down. No explosives were ever found. The shooters body was released today to his family. Scott, the medical examiner had kept the shooter in a separate facility away from the victims. He told us there was no special reason for that other than it just seemed like the right thing to do. Pelley David Begnaud reporting for us tonight. David, thank you. By the way, that 911 transcript was released this morning in a censored form, deleting mateens references to isis. But after the heavy for censoring a public document, the Justice Department released the complete version. In the wake of orlando, the u. S. Senate and the republicans there have agreed to a series of votes tonight on gun legislation. Our Congressional Correspondent nancy cordes is at the capitol. Nancy . Nancy scott, three of those measures have already failed, and fourth is expected to fail shortly, even though everyone up here, including the farr, appears to agree that suspected terrorists should not have access to guns. The problem is that democrats and republicans have two Different Solutions to the problem, and theyrehearted attempts at compromise have gone nowhere. Democrats have a measure that would block anyone who is on a terrorist watch list from flat out being able to buy a gun. But republicans say innocent americans could end up on their list by accident, so their proposal wouldedly a sale for 72 hours while prosecutors work to convince a judge to block the sale permanently. Cumbersome. So whats remarkable, scott, is how unremarkable tonights debate has been. The senate is simply going through the same motions it always does after a mass shooting recently, which is to vote on a series of similar proposals that end up going nowhere. Pelley nancy cordes on capitol hill. Nancy, thank you. Well, the ban on assault weapons in connecticut and new york will remain in place. Today the u. S. Supreme court rejected arguments that those bans violate the second amendment. They were passed after the 2012 massacre at Sandy Hook Elementary School in newtown, connecticut. Parents of some of those children who died were in court today trying a new approach to holding the maker of the gun liable. Congress shielded gunmakers from most lawsuits except when aun is sold nelgtly to someone who is a high risk. Well, the parents argue that the ar15 Assault Rifle is s inherently dangerous that selling it to anyone is negligent. Michelle miller is hartford. The ar15 is the most dangerous, most lethal. Reporter josh koskoff represents ten newtown families suing remington, the manufacturer of the ar15 used to kill 20 children and 6 adults three and a half years ago. The ar15 worked exactly as it was designed to do. Reporter the families claim remington and its distributor were negligent in allowing the guns to get into a hands of mentally ill gunman. Defense lawyer peter barry says thats in the true. Mrs. Landza never visited the sandy hook left ry school with a firearm. It was her son who did. Reporter its the latest challenge to the 2005 federal law that shields the gun industry from most lawsuits over the criminal use of firearms. But the newtown families say the way the militarystyle weapon is marketed is the problem. They point to advertisements that use phrases like consider your man card reissued. Mark and Jackie Barden lost their sevenyearold daniel at sandy hook. Theyre in the advertising these weapons for hunting. Theyre not advertising these weapons for protection. Reporter one week after another gunman used a similar highcapacity militarystyle rifle to kill 49 people in an orlando club, georgetown law professor Heidi Feldman says the stakes are even higher. The gun industry is i believe terribly afraid of being the next cigarette manufacturer. What we need to do to make sure this stops, you know. Daniel deserved to live a life. Reporter this is the first lawsuit of this kind to get this far through the legal system in what is sure to continue to be an uphill legal battle. Scott, the judge has until october to decide whether this case does indeed go to trial. Pelley Michelle Miller for us, michelle, thank you. Coming up next, a star trek actor was killed by an s. U. V. That was recalled. Eryday people farxiga may help in i am everyday people that fight every day. Along with diet and exercise, farxiga helps lower blood sugar in adults with type 2 diabetes. One pill a day helps lower your a1c. And, although its not a weightloss drug, farxiga may help you lose weight. Do not take if allergic to farxiga. If you experience symptoms of a serious allergic reaction such as rash, swelling, difficulty breathing or swallowing, stop taking and seek medical help right away. Do not take farxiga if you have severe kidney problems, are on dialysis, or have bladder cancer. Farxiga can cause serious side effects, including dehydration, genital yeast infections in women and men, serious urinary Tract Infections, low blood sugar and kidney problems. Stop taking farxiga and call your doctor right away if you have signs of ketoacidosis which can be serious or lifethreatening. Farxiga. I am everyday people we are everyday people. Visit farxiga. Com and ask your doctor how you can get farxiga for free. Perfect driving record. Until one of you clips a food truck. Then your rates go through the roof. For drivers with accident forgiveness, Liberty Mutual wont raise your rates due to your first accident. Liberty mutual insurance. Meta appetite control. You and temptation with. Clinically proven to help reduce hunger between meals. New, from metamucil, the 1 doctor recommended brand. Pelley anton yelchin, who appeared in the most recent star trek movies, was killed yesterday when his s. U. V. Rolled into him in his los angeles driveway. The s. U. V. Was part of a recall because the gearshift can be confusing. Kris van cleave has this. Reporter Los Angeles Police say actor Anton Yelchins 2015 Jeep Grand Cherokee was still running when it rolled back, pinning the 27yearold against a fence outside his home. The star trek star may not have properly put the s. U. V. Into park. Yelchins grand cherokee is among 1. 1 million vehicles worldwide recalled in april for a defect with its electronic shifter that could result in rollaway incidents. Drivers were notified in may about the recall. The company accelerated its plans for repairs but internal documents show the fix wasnt expected to be available until at least july. We first reported on the issue in march. Since then the number of complaints about difficulties shifting into park has grown to approximately 700, including 212 accidents and at least 41 injuries. Automaker documents blame potential driver error for the incidents. I got out of the jeep. I thought it was in park. And it was in reverse still. Reporter gary titus narrowly avoided injury when his 2014 grand cherokee, now recalled, rolled away. And as i walked back toward the garage, i noticed the car was moving a little bit, so i got between the car and the and stop the car at the same time. Anton yelchin most likely would be alive today. Reporter Clarence Ditlow from the center for auto safety. Both the government and chrysler let consumers down. Chrysler because they made the defect, and they didnt move to fix it fast enough, and the government because they didnt act as a tough cop on the beat. Reporter in a statement Fiat Chrysler expressed its condolences and says it is investigating. Scott, the automaker cautions it is premature to speculate on the cause of this tragedy. Pelley kris van cleave, thanks very much. Up next, lebron james brings cleveland a championship. This is humira. This is humira helping to relieve my pain and protect my joints from further damage. 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