And what it does is it allows the bosses to pick whoever they want. Donald trump versus the rnc. The rules are not being changed. They are in writing and they are not all that complicated. Do you think donald trump is threatening delegates and voters . I was very glad this morning that i didnt find a horses head in my bed. Tonight Hillary Clinton and Bernie Sanders square off in a high stakes debate in new york city. Our Campaign Today has the momentum. Russian fighter jets flew dangerously close to a u. S. Navy destroyer. Bryant with a jumper. Hes got it kobes final game would end an emotional night. Unbelievable stuff tonight. He scored 60. 20 years of everybody screaming to pass the ball and the last night, they are like, dont pass it ha, ha president obama met budding inventors at the white house science fair. You could also use this for powerball. She got a dressed up daddy in a pink boa. That was on videotape the whole time. All that its official. Number 73. The greatest regular season in nba history i dont think this will ever be broken. The energy that was in the building was unbelievable. Lets go get this championship and all that matters. When i talk about new york values, what im talking about are the liberal democrats. New york values are american values. There is no difference. On cbs this morning. The lakers store started selling something called the 24 collection like this leather kobe jacket for 5,000 or you could go nuts and buy this leather cap. It costs 48,024. It doesnt even say make America Great again on it. Announcer this portion of cbs this morning sponsored by toyota. Lets go places welcome to cbs this morning. Donald trump cannot stop talking about alleged plots to derail his president ial campaign. But a cbs news poll out this morning shows he is still leading the republican race. 42 of gop voters nationwide support trump. He is 13 points ahead of ted cruz, with john kasich still in third place. Our poll also found republicans dont agree which candidate can unite the party. All three of them received at least 30 support. The New York Daily News is backing kasich for the nomination. The papers Editorial Board praises the ohio governors quote, maturity and practicing pragmaticism and said his two rivals would be quote disastrous as president. Good morning. After several days spent accusing the Republican Party of allegedly rigging colorados delegate Selection Process in favor of ted cruz, donald trump is now predicting that party bosses will poll a similar stunt when voters in pennsylvania head to the polls later this month. Increasingly rnc chairman Reince Priebus says trump needs to do a better job of learning. And that the rules have not changed. A steel city clash outside of the Pittsburgh Convention center voices raised against donald trump. You cant let the bosses take it away. Reporter inside, trump raised his voice arguing the delegates were stolen from him in colorado. The establishment and the people that shouldnt have this power took all of the power away from the voters. So the voters never got to vote. Reporter trump then clumsily tried to explain pennsylvania delegate rules and predicting more dark plotting against his campaign. I could win pennsylvania by a landslide and get 17 delegates and somebody else could get, like, 35 or 40 and they didnt even win but they have connections into the machine. Its not right. Reporter not quite. Pennsylvanias april 26th primary will award 71 delegates. 17 will be committed to vote for the statewide winner. But the 54 remaining will be individually elected, free to vote for whomever they want. The rules are simple. The way you get elected is you win a majority of the delegates in elections. Reporter ted cruz said trump is fighting history and is in danger of losing. Donald and his team, its almost like they are subjects in a clinical course of psychology. Reporter perhaps reflecting trumps recent delegate setbacks more than 70 of republicans expected trump to win the election. That number is town to 60 today. Trump did his best on wednesday to pander to pennsylvania voters invoking the name of a deceived penn state football legend. I know a lot of about pennsylvania and its great. How is joe paterno . We going to bring that back . Right . How about how about that whole how about that whole deal . Former penn state joe paterno died in 2012 after he was fired for a lawsuit. Im glad an explanation. Youre like what did he just say . What . Not the first time we have had that reaction. Nice to have you at the table, major. Good to have you here. The Democratic Candidates will debate tonight in new york after one of the biggest rallies of the campaign. Bernie sanders spoke to some 27,000 people last night. The iconic Washington Square park. A new poll shows Hillary Clinton leads sanders by ten points in new york 52 to 42 . Nancy cordes is inside the Navy Brooklyn navy yard, the sight of tonights debate. Reporter good morning. This is a debate that sanders pushed for. He wanted a chance to go up against clinton on her home turf. In fact, her Campaign Headquarters is not even ten blocks from here. Both of them go into tonights debate, the last one on the schedule, with some scores to settle after the most confrontational week of the campaign. We have got a surprise for the establishment. Reporter in Washington Square park a mile from wall street, sanders tore into clintons ties to top financial firms. If somebody gets paid 225,000 for a speech, it must be an unbelievably extraordinary speech. He was plaid in a jacket from the union. No accident on a day spent wooing new yorks large labor vote. First he secured the endorsement of the transit workers union. 38,000 strong. Then he joined hundreds of picketing verizon workers in brooklyn. They want to give their ceo 20 million a year reporter verizon ceo Lowell Mcadam said show me a company that has done more to invest in america, calling the senators quote, uninformed views contemptible. Sanders shot back i dont want the support of mcadam and immel and their friends in a billionaire class. I welcome their contempt. Clinton who gave a high priced speech in 2013 also paid a visit to Striking Verizon workers, shaking hands for about five minutes and then leaving without publicly criticizing their employer. She spent more time at a nearby civil rights summit implying sanders has ignored a key voting block. If we are going to ask africanamericans to vote for us, we cannot take you or your vote for granted. Reporter if it seems like these two candidates are spending the lions share of their time here in new york city, instead of the rest of the state that is not your imagination. Back in 2008 more than 50 of the vote in the democratic primary came from the five boroughs. Whoever wins here next tuesday is likely to win the states primary. Russia says its war planes respected all safety rules when they buzzed a u. S. Navy destroyer in the baltic sea. The pentagon wednesday released dramatic video of the jets flying extremely close to the ship more than 30 times over two days. David martin is at the pentagon. David, good morning. Reporter good morning. The u. S. Intends to file a diplomatic protest but russia made its point. It resents American Forces operating close to russian territory and intends to push back. The bridge wing below the bridge wing reporter russian planes rush by the u. S. Navy destroyer low and fast over and over. Pictures taken from on board the ship showed just how dangerously close they came during some of those passes. Over the bow. Right turn. Over the bow. Reporter they were flying with the uss donald cook described as a simulated attack profile, although they carried no weapons under their wings. A total of 31 runs over two days. On monday, the cook was preparing to conduct helicopter Flight Operations in the baltic sea in International Waters 70 miles off the coast of the russian enclave of kaliningrad. Evelyn farkas is a former policy expert for the pentagon. This is dangerous behavior. They are playing with fire here. Im sure the u. S. Ships and other nonrussian ships have been just as close in the past and even if they hadnt, again, they are in International Waters. There is nothing provocative about what we are doing. Unlike the russians, we actually telegraph transparently what we are doing. Reporter a pair of russian attack jets flew 20 passes on monday coming as close of 1,000 yards at an altitude of 100 feet. Ignoring radio calls from the cook and enforcing the ship to cancel Flight Operations. On tuesday, a russian helicopter circled the cook taking photographs. Then another pair of attack jets showed up and buzzed the cook 11 times. This time, coming within an estimated 30 feet of the ship. The latest and most striking in a series of incidents over the past two years. So we clearly need to send a signal to the russians this is unacceptable and unprofessional and risky behavior. U. S. Officials believe the fly byes violated an agreement signed in the 1970s with the soviet union. And remains in effect today with russia and prohibit running simulated attack profiles against ships. Charlie . David, thanks. The fbi has not found anything significant so far on the iphone of the San Bernardino gunman. A Law Enforcement source tells cbs news that investigators are still looking for more information on the device. The fbi accessed the data without apples help after a legal battle. The wife of former Saints Player will smith is opening up about the deadly shooting that killed her husband. Yesterday, an attorney shared raquel smiths account to counter what he called lies and factual distortions. The suspected shooter is behind bars and charged with murder. Manuel bojorquez shows us the conflicting versions of the apparent road rage killing. He actually stood over will smiths dead body, this is his wife had crawled away because she couldnt walk. Was could cowering and hiding. Reporter the attorney thompson said he showed no remorse when he shot former super bowl champion will smith and his wife multiple times. Surveillance photos before the shooting appeared to capture smiths tapping smiths hummer. Smith said he drove away because he didnt see any damage. Suddenly a hummer rammed up behind them and rammed their car and causing the back windshield of their suv to shatter. Hayes was tried and convicted before i got out of church on sunday. Reporter john fuller, hayes attorney, insisted his client is unfairly prejudged and did not deliberately target the vehicle. It was an accident and certainly was not retaliatory. Reporter after the men got out of their cars, the attorney for smiths family said raquel tried to diffuse the situation. She was actually telling the shooter to leave us alone, you know, to go back to your car. We have children. Reporter hayes allegedly opened fire, striking her first. Thompson said while smith had his own loaded gun, he never took it out of the compartment inside his car. But fuller insists at least one witness saw smith with the weapon. Preliminary autopsy results showed seven bullets hit smiths back and one hit the left side of his chest. As far as the eight sts that mr. Smith sustained, i will say again that mr. Hayes is legally not guilty. Reporter a public viewing for the former new orleans Saints Player is planned for friday. For cbs this morning, im manuel bojorquez. The cdc has finally confirmed the zika virus causes birth defects. Health Officials Say babies have abnormally small heads and other brain defects. More than two dozen states have a type of mosquito that could spread the zika here. So far, there have been no cases of zika infections in the u. S. Transmitted through mosquitoes but the white house calls the threat imminent. The Golden State Warriors have made nba history. Its official. Number 73 the greatest record of a season in nba history now belongs to the 2016 Golden State Warriors. A great team. The warriors are the first team to win 73 regular season games after beating the Memphis Grizzlies last night. The win breaks the record set by Michael Jordan and the Chicago Bulls in 1996. During the game, steph curry became the first player to make 400 threepoint shots in a season. Wow unbelievable. Golden state will now prepare for the playoffs which begin this weekend. Terrific. Congratulations to them. I got another wow for you. Kobe bryant capped off a legendary nba career with a remarkable farewell performance. Put your hands together for kobe bryant. Fans greeted the lakers guard last night with cheers. One final time. He put up, listen to this number. 60 points in his last nba game Allie Laforce of cbs sports was at the game. Lucky you good morning reporter last night was one of the best farewells weve ever seen. Its hard to believe it was nearly five months ago kobe bryant announced that this season would be his last. And its a season for the ages. Its an emotional roller coaster for him all season nothing compared to last night, his last night in purple and gold. Bryant. On the move. The jumper, hes got it oh, my reporter if this is a retirement party, no one told kobe bryant. Going to the basket. Yes reporter playing with kids nearly half his age, the 37yearold treated fans to a victory with a throwback performance the kind they have grown accustomed to over the years. Bryant dropped 60 points on 50 shots, blowing the roof off of a packed Staples Center and giving the lakers one final glimpse of a basketball icon. He is not only a great and unbelievable sports icon, but also hes the greatest to wear the purple and gold reporter the tributes were memorable and the arena overflowing with star power. Why was it important for you to be here tonight . To say goodbye. Reporter all on hand to witness the end of an era. My heart and soul. And i gave everything i possibly could to the game. Thats why im so comfortable walking away from it. Im bearing my soul to this game. Its just a marvel. Reporter after 20 seasons and five world championships, all with the lakers, bryant knew it was time to say goodbye. Kobe, at what moment were you most emotional tonight . When did it really take you over . There were a lot of points there where i started getting emotional. You know, when we first ran out of the tunnel, you know, i catch myself, you know . Okay, im putting on my jersey saying, this is the last time im putting on a jersey. Reporter his career was forged in the jordan era and modeled his game off of his mentor. The iconic fadeaway jumper. The unrivalled will to win and the games buzzerbeaters. Tonight was amazing display of hollywood and heart and goodbye and farewell. This was his gift to the city. The city came to give him a gift. Instead, he gave us the gift. Reporter one of my favorite things he said after the game was now his kids got a chance to see how he used to play and he does not have to tell them to look it up on youtube any longer. That is so awesome, allie. Magic johnson said the greatest final performance hes ever seen in sports. You see the reaction from everyone is fantastic. Really awesome. Go kobe. Speaking of awesome. Some of these diamonds could disrupt the worlds jewelry trade. Welcrldtojewe can you tell which are natural and which are manmade . How a silicon lab can make precious gems in a few weeks. First, its time to check , announcer this portion of cbs this morning sponsored by etrade. Dont just see opportunity. Seize it a new call this morning to cut down on the abuse of painkillers. Some doctors are getting their licenses suspended or revoked for over prescribing opioids. Did you write 335 prescription the week of january for more than 19,000 oxycodone pills . Um. Possibly. Reporter you dont know how many prescriptions you wrote . I dont. It may well be. Ahead, jim axelrod investigates the deadly consequences. The news is back this morning right here on cbs this morning. Announcer this portion of cbs this morning sponsored by toyota. Lets go places. Making their getaway in a prius. This game ends now. To catch a prius, youve gotta be a prius. Guys, whats that . Oh, man. Toyota. Lets go places. Dont let dust and allergies get and lifes beautiful moments. With flonase allergy relief, they wont. Most allergy pills only control one inflammatory substance. Flonase controls six. 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