Your world in 90 seconds. Reporter tensions are increasing. They are taunting each other. Temperatures flare outside a trump tempers flare outside a trump rally california. Unbelievable the debate between donald trump and Bernie Sanders, not going to happen. Trump called it off. I hope that he changes his mind again. Well, mr. Trump, what are you afraid of . An estimated 38 Million People will travel this holiday weekend. The busiest memorial day in a decade. Tropical storms up for South Carolina. It will bring heavy rainfall to the eastern seaboard heading into memorial day. Flooding in south texas led to a frantic rescue. Ranchers had to round up 800 head of cattle. In new york city, the pilot of a vintage world war ii fighter plane crashed into the hudson river. Could see the guy trying to gut oat of the plane. Just couldnt make it out. A Police Officer had a brush with death. Wasnt a suspect. It was a tree. There it goes. Spacex has pulled off another rocket launch and landing. [ cheers ] all that johnny depp ordered to stay away from his estranged wife amid charges of domestic abuse. And all that matter oh, thats an amazing point into the era deep left field. 100 home runs for david ross on cbs this Morning Saturday. Alleyoop to james. Lebron james is headed to his sixth straight nba finals. Folks, hes the first in 50 years to achieve that. Thats incredible. It is emotional to be part of Something Like this. Its my sixth straight. It means everything. Welcome to the memorial day weekend. Elaine quijano in and a great lineup this morning. When it comes to movies, the idea of a tomb raider seems thrilling. In real life, its having a profound effect on our archaeological heritage. Why the problem may start here in america. Were also going to take you to cal navari, nevada, a small town for sale not far from the vegas strip. Meet the remarkable woman whos run the town for a half century and show the one thing the new owner will not be allowed to change. And they range from professionallevel athletes to the occasional fisherman. The best and worst president s when it comes to athletics. Thats ahead. First, our top story. New violence as donald trump brings his strict immigration policy to mexicos doorstep. The presumptive president ial nominee campaigned in san diego friday, the busiest Border Crossing between the u. S. And mexico. Outside the Convention Center where he spoke was one of the largest protests organized against him. About three dozen people were arrested when antitrump demonstrators clashed with Trump Supporters and police. Heres carter evans. Reporter hundreds of protesters marched in the street near san diegos Convention Center. Donald trump has got to go reporter it began as a peaceful demonstration that included immigrant groups who disapprove of trumps tactics and rhetoric. Going to build a wall reporter skirmishes erupted outside. Police brought out batons when protesters tried to climb into a secure area where officers were monitoring the situation. At least one was arrested. That led protesters to throw Water Bottles at the officers. When the rally ended, the racially diverse crowd began exchanging angry words. Go back to mexico reporter emotions boiled over, then things became physical. My friend was attacked by this guy. I pulled one guy off. The next comes in. Somebody socks me right here. Is my nose broken . Reporter in california last month, antitrump protesters burned an American Flag and an effigy of the candidate. Sentiments continue to flare due in part to a large hispanic population. On friday in san diego, protesters staged a sit in. I dont agree with what the candidate donald trump has put out there. Like the fact that hes using racism, discrimination. Reporter as the rally begins to wrap up, you see police in riot gear closing in on the crowd. Theyve told everyone that this is an unlawful assembly. Everybody who remains here is here illegally and subject to arrest. Police moved in to disperse the crowd. Inside, trump continued his fight to take california despite claims that a republican cant win the state. Honestly, folks, we have leadership in this country especially at the top that is grossly incompetent. They dont know what the hell theyre doing. Reporter for cbs this Morning Saturday, carter evans, san diego. During an appearance in fresno earlier in the day, trump waded into one of californias biggest problems, its historic drought. In a private meeting with corporate farmers, trump said, there is no drought. And that he can fix the states chronic water problems that pits rural water districts and welloff farmers against environmental laws. He elaborated on the point at a campaign rally. Ive heard this from other friends in california where they have farms up here, and they dont get water. I said, thats too bad. Is it a drought . No, we have plenty of water. Whats wrong . We shove it out to sea. And i said, why . And nobody even knows why. And the environmentalists dont know why. Theyre trying to protect a certain kind of threeinch fish. Trump was referring to the delta smelt, a native california fish thats on the brink of extinction. A debate showdown between Bernie Sanders and donald trump appears to be off the table. Sanders is trailing Hillary Clinton in the race for the democratic nomination. He says he would still like to take on trump. Trump is a bully, a big, tough guy. What are you afraid . Trump initially said he would debate sanders to raise money for charity but that no tv networks were ponying up. The Sanders Campaign said it received two offers from television networks. For more on campaign 2016, weve joined by a Senior Reporter for politico new york. Thanks for being here, good morning. Thanks for having me. Donald trump has enough delegates now to clinch the gop nomination. Do you think now theres going to be more pressure on republicans to fall behind him . For instance, speaker of the house paul ryan . Paul ryan has made gestures to show that hes falling in line with him. Whether its a formal endorsement is another question. Trump got here not by playing an inside game with Party Leaders and amassing delegates. He won this by going to the public and having a broad campaign. Whether or not anyone formally endorses him, the question will be is anyone Strong Enough to stand up and actively articulate a reason to support him . That doesnt seem what paul ryan wants to do. Now that trump has enough delegates, hes going to focus on states like new york and california which which havent gone republican in more than 30 years. Are these because of his unconventional candidacy, are the states in play this time . In some ways, you cant rule it out. Like you could look at the numbers, but what trump is doing is playing a psychological game with the Clinton Campaign by saying hes going to campaign. They have to decide whether or not to spend resources and make sure it doesnt happen. If you spend resources in new york and california, you have a harder time spending that money in the places like florida that you need to win. You have to take it from somewhere. Lets talk about Hillary Clinton. That inspector generals report was critical. How do you think it will affect her campaign . The worst scandals are the wonz that reinforce ones that reinforce a negative stump stoo type. If you listen to donald trump, Hillary Clinton doesnt play by the same rules as everyone else, is a liar. Heres an Obama Administration official saying, no, we did not give you authorization to do this. It feeds into the narrative. If shes going to avoid reporters and stop sort of articulating a case against trump and being on the defensive, thats harder to convince voters that shes going to need in november. Does she need closure in some way for her candidacy to thrive . Its going to be hard to imagine her making the case to voters if there are more legitimate voices throughout saying we never gave authorization to do this, and the statements that you said in past are not accurate. Lets talk about upcoming primaries. What would it mean for Bernie Sanders campaign if he were to win california . How would it play into the convention . This is shocking that its the democrats that might have a more contested convention than republicans. Nobody would have predicted this a couple weeks ago even. This is going to put her to put more pressure on sanders to support the party. If donald trump is gaining more support, if his allies and party are coalescing around him, how come democrats arent . Bernie sanders will face a tough decision about what hes going to do. Either put his candidacy first or the party first. If clinton loses california, that gives does that finally give sanders a case with superdelegates as hes been saying for ages . Its not going change the math in a significant enough way. Hell have to articulate why its better for the party than for him. Theyre giving him a spot to help shape the platform, but is it going to change what dlots wi what delegates do . Probably not. They have to give him something to help convince clinton in november. Thank you very much for being with us. Thank you. Tomorrow morning on face the nation on cbs, john dickersons guests will include senator Bernie Sanders. The memorial day weekend is expected to be a washout for millions of americans. The years first Tropical Storm warning is posted along the South Carolina coast. The rain hasnt started yet, but beachgoers near charleston experienced high winds and dangerous, rough surf on friday. And another day of heavy rain is expected across parts of the plains. Last night, a suspected tornado touched down in central wisconsin, knocking down trees and knocking out power in the town of bramden. The worst damage from the Severe Weather is in texas where at least one person was killed and three more are still missing. Don champion is there. Reporter for the last 24 hours, rescue choppers have been plucking desperate people off rooftops of homes and submerged cars in several texas towns. Near austin, there have been at least 75 people rescued. In brenham, rain poured down in buckets. More than 18 inches in a days time. Quickly rising water washed out roads and washed cars away. 21yearold Darin Mitchell posted this haunting photo as water topped the roof of his truck. He wrote, all i wanted to do was go home. A short while later, he disappeared. After fields flooded in chapel hill, ranchers tried to save cattle by herding them toward the shore. Homeowners only now just beginning to soak in the damage of flooded homes and fallen trees and branches. Super scary. You dont know what to do. Reporter this entire neighborhood was cut off. The second nightmare a year. What are you second time in a year. What are you going do . Im probably going to have move, and i dont want to move. For the latest on the severe storms and the Tropical Storm warning we go to meteorologist ed curran of chicago station wbb mtv. Good morning. Reporter good morning. Well start with the tropical depression that we have. Here it is, 250 miles southeast of charleston, South Carolina. 35 mileperhour winds makes it just a few Miles Per Hour shy of being a Tropical Storm. And we have the Tropical Storm warnings that are up here along the coast of South Carolina. Now we look at where we have a chance for Severe Weather. A marginal chance from northern wisconsin all the way down to texas, damaging wind, hail, and especially to the north, the chance to see an isolated tornado or two as we go through the day. And now we look to indianapolis. Tomorrow, the 100th running of the indianapolis 500. An increasing chance of showers and thunderstorms as we move through the race tomorrow. Warm temperatures around the nation today. 98 in phoenix. 90 degrees in new york. 90 degrees in orlando. Elaine . All right. Meteorologist ed curran of w wbbmtv. More than a million and a half people will be flying this holiday weekend. New efforts are being made to get passengers through security as quickly as possible. Kris van cleave is at Dulles Airport outside washington. Reporter good morning. The tsa said screeners found a record 74 firearms at checkpoints across the country last week. The agency says 90 of flyers spend 30 minutes or less in the screening lines. This weekend, the lines could be longer. Bring on the summer rush and fears of historically long gridlocked secured lines at airports across the country. Already this year, American Airlines says more than 70,000 people and over 40,000 checked bags have missed flights because of screening delays. The lines were long. We couldnt find the start of the line anywhere. Definitely nerveracking. Reporter at chicago ohare, the second Busiest Airport in the country this weekend, lines were long but moving. A change from a couple weeks ago when more than 100 ended up sleeping on cots, stranded because of seemingly stagnant tsa lines. I got here at 3 00 in the morning. My flight is at 7 00. Reporter those who got to the Buffalo Airport early friday found the line to get into the line for security stretched through the terminal. The memorial day weekend jumpstart a seasonal surge of more than 231 million americans that are expected to fliempt an to fly. 95,500 over last year. It comes as the tsa is struggling with a staffing shortage. Well keep passengers moving this weekend. Were also going to keep them safe. Reporter secretary of Homeland Security jeh johnson on in the last several weeks weve converted a lot of part time to full time. We are authorized by dong pay additional overtime to deal with the increased travel volume. Reporter the tsas in the process of adding nearly 800 more officers, redeploying screeners and k9 teams to busy airports, all in an effort to keep up with the summer rush. Anthony . Kris van cleave. Thanks. This morning, investigators are trying to determine why a vintage world war ii fighter plane crashed into the hudson river between new york and new jersey killing the pilot. An eyewitness recorded the moment as the p47 thunderbolt went down last night. Divers recovered the bodies. The pilots body from the sunken wreckage a few hours later. Firefighters said the plane developed engine trouble before the crash. It was taking part in an air show. The p47 thunderbolt was one of the most widely used fighter planes during the second world war. New evidence emerge good whether there is any connection between cell phone use and the increase of developing cancer. Reporter in one of the biggest studies to date, the National Toxicology program looked at the potential link between cell phone radiation and consider. Researchers subject and cancer. Researchers subjected lab rats to the radiation and found some developed tumors in the brain and heart. The report author said given the widespread use of cell phones, even a small increase in cancers from radiation could have broad implications for Public Health. The findings will likely launch a new debate over whether cell phones cause cancer. Dr. Thomas brewly of the American Cancer Society it is Game Changing in that its the first time that we have evidence that the radio waves from a cell phone can cause cancers. Reporter the fda says the majority of studies so far have not link eed cell phones with health problems. The head at Duke University this is an incomplete presentation of information. When you do that, you raise far more questions about the validity of the results. Reporter its worth noting the incidence of brain cancer has not increased in recent years despite the rapid increase in cell phone use. If youre concerned about potential risk, experts say you can keep the phone away from your head by using a bluetooth or headphones. For cbs this Morning Saturday, im anna werner. A 7eleven was badly damaged in oregon when a car drove through the door. Video caught the crash. Police say the driver was deaf and was driving for the first time. She was ticketed for not having a license or learners permitted. Her passenger, the owner, was given a ticket for providing a vehicle to an unlicensed driver. There were no injuries. Boy, that was a close call. For the sixth consecutive year, lebron james is leading his team to the nba finals. James scored 3 points last night to lead the 33 points last night to lead them to the 11387 win over toronto. Cleveland wins the Eastern Conference Finals in six games. The cavs are searching for their firstever nba title and first major sports championship in the city since 1964. Cleveland will face the winner of the golden state Oklahoma City finals that end this week. A lot of hopeful people. Time to show you some of the mornings headlines. The bbc reports the World Health Organization is rejecting a call to move the summer olympics out of Rio De Janeiro due to zika virus concerns. The who says there is no Public Health ju