From the White House Briefing room by the secret Service Moments ago while he was holding a News Conference. The president did return moments later telling reporters there had been a shooting and that the situation was under control. Were going to have more on that in a moment. But well begin with the u. S. Topping more than five million cases of coronavirus. That milestone comes only about two weeks after the u. S. Hit four million infections and comes as battle lines are being drawn over whether or not students should return to classrooms across the country. One school in georgia that had just reopened is now closed after students and staff there tested positive, while in other parts of the country, children are back in classes without being required to wear masks. Colleges are now also facing pressure on whether its safe to bring students back to campus. Campre is that debate clearer tonight than on the football field where some of the countrys biggest athletic night re al following aidering harrowing search operation in baltimore after a dramatic and deadly explosion there leveled three homes today. Multiple survivors were pulled from the rubble. There is a lot of news to get to and cbss Manuel Bojorquez leads us off tonight in miami, manny . Reporter well, margaret, today florida reported one of the lowest numbers of new coronavirus cases in more than a month. The concern here is that as schools start to reopen, some without mandating masks, the virus could have a new way to spread. When kristen polaciks six year old son marcellus got the virus last month, he ended up in the emergency room three times in one week. We will have more children like my son who will end up in the er. So its scary. Reporter theyve chosen reeporter what is your thought on schools rng j this a powder reporter in georgias crowded hallway photo made headlines, six students and three Staff Members tested positive, forcing the school to go online while the campus is cleaned. Districts have reopened in states where the positive rate of new cases is well above the World Health Organizations recommended 5 for reopening. Even in new york where the rate is the lowest, below 1 , more than a quarter of families in new york city still opted for remote only learning for their kids. There are signs tonight the College Football season could be over before it begins, the big ten conference is on the verge of reportedly canceling all games, other conferences expected to follow suit as early as this week. By some estimates schools and conferences stand to lose 4 billion with no football this season. Yet some events continue unimpeded like this bikers rally in sturgis, south dakota tracs of tlrars anersi ors, tendan other yeople being at home. Reporter while many there shunned masks new studies like this one from Duke University tested the efficiency of 14 different types of face coverings finding the n95 is the most effective. And fleece masks were worse than wearing no masks at all. And a remarkable recovery, in a hospital since april, on a ventilator, in a medically induced coma. 31 year old Francisco Garcia walked out of a Southern California hospital on sunday, seeing and hugging his family for the first time in nearly four months. And tonight we are learning the tmber of coronavirus cases in children nearly doubled in the last month. New data from the american e ademy of pediatrics shows that overall in the United States more than 380,000 children have tested positive since the pandemic began. Margaret . Brennan Manny Bojorquez in miami. Now to breaking news and that i. Re Security Breach at the ronavirungith reporters on live television, President Trump was escorted out of the room by an agent who whispered in his ear. Tonight the president says he is safe, though there are questions about how close someone with a gun may have gotten to him. Cbss weijia jiang is at the white house tonight. Reporter President Trump abruptly left his News Conference after shots were fired outside the white house. Prompting secret service to clear the grounds. The president returned a few minutes later. There was a shooting and somebody was taken to the hospital, seems that the person was was shot by secret service. So well see what happens. Reporter cessional and continued blaming each other for collapsed talks. Democrats said our way or the highway. Rather than compromise, republican counterparts said take a hike. In the meantime the president vowed to act alone signing four executive measures over the weekend. My administration will provide immediate and vital relief to americans struggling. Reporter not exactly. President trump plans to postpone payroll taxes through the end of the year for workers making less than 100,000. But theyll owe the money later unless congress acts. The president claims he will prevent evictions but has only directed federal agencies to consider whether halting evictions is necessary. And said he will extend federal unemployment benefits, though cutting them from 600 to 400 a week. Plus 25 would have to be funded by cashstrapped states. Nebraska republican ben sasse called mr. Trumps plan unconstitutional slop. And even the president acknowledged legal challenges are likely. Reporter weijia jiang, cbs news, the white house. Brennan tonight a frantic search for survivors is under way after a major explosion ripped through a residential neighborhood in baltimore. The blast reduced three homes to rubble and severely damaged several others. Cbss kris van cleave is there for us tonight, chris . Margaret, this remains a very active search, let me step out of the way, you can see baltimore firefighters still going through the rubble here, they have lost a neighbor and this was a blast they felt for blocks. My baby reporter shock and grief overflow in baltimore. Investigators believe a gas explosion destroyed three homes here, killing at least one person. So many houses just gone, bro, just gone. Reporter neighbors turned rescuers worked with firefighters to pull seven others from the rubble in scorching summer heat. I was sitting in the house and i heard this boom. And my house shook. Antoinetta parish and dean jones ran to help, working in this rubble even as the smell of gas filled the air. We heard a faint hey, im here, help me, help me. So we looked at each other. And started digging by hand. Reporter firefighters spent hours cutting and digging their way through the remains of the homes and could work through the night. Were trying to make sure that we comb through every area to determine if there are any victims inside. Reporter manny mobley sr. Says he feels lucky to be alive, he was driving by when the houses exploded. Dust flying through the air, i kept smelling, smelling, i dont know was it gas, smoke, whatever. It just sounded like a bomb blew reporter six of the people that were pulled out of this ome that were had serious injuries. There is damage not only to the homes that came down but to the surrounding blocks. You have some that were hit by debris and windows are blown out for blocks, margaret. Brennan incredible destruction. Chris, thank you. The Democratic Party convention is set to start one week from neday. Our new cbs news battleground poll shows President Trump trailing joe biden by six points in pennsylvania and wisconsin. Two of the key 2016 swing states that helped vault mr. Trump into the white house. This as biden is expected to announce his pick for running mate this week. Heres cbss ed okeefe. Reporter joe biden returned to his residence in wilmington delaware today after spending the weekend at his second home in Rehoboth Beach and teasing an potential announcement mr. Biden, have you picked a running mate yet . Yes, i have. Who is it . Reporter so far bidenly known face to face meeting with a contender was with Michigan Governor Gretchen Whitmer who made a quick round trip to see biden last week. Have you been interviewed by Vice President biden . Happy sunday. Reporter cbs news is told several others including susan rice spotted sunday in washington, have been on stand by for a potential interview since the end of last week. In addition to rice, bidens potential choices include about a dozen mayors, governors and lawmakers. And as biden ponders his choi towarnom more than 100 leaders including civil rightsur on offdy combs and forme van jones failure to select a black woman in 2020 means you will lose the election. Whoever he picks, bidens decision matters to voters not currently backing him in seven in ten who say they could consider supporting biden says his vp choice is important. As we await bidens choice several womens rights leaders are calling on news organizations to ensure fair coverage of whoever she is. They call for a new way of think about your role and how she is treated and the equality she deserves. Brennan indeed, thank you, ed. Today in minneapolis a judge released the full bodycam videos from two former officers charged with aiding and abetting murder in the death of george floyd. The footage raises new and troubling questions about how floyd was treated. A warning, these videos are disturbing. Or nd bos mola leng. Cam video from the Minneapolis Police department shows the moment after george floyd was arrested and loaded into a ambulance. We basically restrained him until you guys got here. Reporter aid is given to the unconscious floyd one minute and 18 seconds after he is placed into the medical unit. Do cpr. Reporter the video recorded on body cameras of former officers thomas lay and j a Alexander King shows officer lane ultimately performing chest compressions then using a machine to perform cpr to resuscitate floyd. The lifesaving attempts came after floyd lost consciousness while officer Derek Chauvin pressed his knee into floyds neck for nine minutes and 30 seconds. This video makes the case. Reporter ben crump is the attorney representing floyds family. He insists the lack of urgency to save floyds life went beyond the four now fired officers who detained him. We just think the entire system was responsible for the death of george floyd. Reporter initially the videos were not released publicly because of concerns they could taint the jury pool but the County District judge peter cahill issued a order to release them aftd a moti mola lenghi, cbs news. Brennan the mayor of chicago is calling a wave of breakins and looting overnight an assault on her city. More than 100 people were arrested and more than a dozen officers injured in the smash and grab spree. Cbss adriana diaz reports on what may have set off the chaos. Reporter there was chaos and looting along chicagos famed magnificent mile and other areas overnight. They broke into atms and emptied shelves at this walgreens. The coordinated effort followed a Police Shooting of a 20 year old who allegedly opened fire first, says superintendent david brown. And almost immediately as that crowd dissipates and we come across a post on social media that a caravan of cars being prompted to go to our downtown to loot. R e ma mor 1 repte fired. Bridges to limit movement. Community members highlight a lack of jobs and hope in some neighborhoods. There is no justification for criminal behavior ever. Reporter adriana diaz, cbs news, chicago. Brennan tonight following those two catastrophic explosions, lebanon is now in the throws of political turmoil. The Prime Minister and his entire government announced plans to step down today amid public fury over the explosions in beirut last week that killed at least 160 people and wounded nearly 6,000. Cbss imtiaz tyab was there. Reporter protestors bitterly confronted Lebanese Security forces for a fourth day. Since tuesdays terrible explosion, the government has been almost invisible, helping no one. And yet somehow the strong arm of the state can still flex its might. But how do revolutionize a corrupt political system . The Prime Minister is going to resign. Is that enough . No, its not enough. Reporter world powers including the u. S. Have pledged nearly 300 million in aid conditional to political and economic reform. But lebanons ruling class has survived major conflict and crises before. And they may just survive this ese too. Imtiaz tyab, cbs news beirut. Brennan there is still much more news ahead on tonights cbs evening news. Up next, widespread damage and Power Outages as severe storms up next, widespread damage and Power Outages tear through the midwest. Ar through thetribute to some of the pandemics unsung heroes. And why theyre needed more now than ever. Needed more now than ever. Helps you sleep longer. Ed release melatonin and longer. Zzzquil pure zzzs all night. Fall asleep. Stay asleep. I have the power to lower my blood sugar and a1c. Because i can still make my own insulin. And trulicity activates my body to release it like its supposed to. Onceweekly trulicity is for type 2 diabetes. Its not insulin. It starts acting from the first dose. 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And theres no way to predict who will or wont clear the virus. But you can help protect your child by taking a first step. The cdc recommends hpv vaccination at age 11 or 12 to help protect against certain cancers. Hey cancer not. My. Child. Dont wait. Talk to your childs doctor about hpv vaccination today. A lot goes through your mind. With fidelity wealth management, your dedicated adviser can give you straightforward advice and tailored recommendations. Thats the clarity you get with fidelity wealth management. Brennan powerful storms blasted across the upper midwest today. Straight line winds blew down trees and knocked out power in parts of iowa, nebraska and illinois. Thousands are still in the dark. In iowa gusts were clocked at around 112 miles per hour. The roof of a hockey rink was blown off in the city of urbandale. Pro golf has a new star, Collin Morikawas fabulous drive on the 16th hole led to a short putt that sealed the pga championship. 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I forget about everything. Every time i see a dog Everything Else just goes out the window. Rs duto thec eati ways ill te void, connecting with dogs over zoom a evesubstitutibotouts of a at dc Childrens Hospital patients are lucky to get the real thing. A five minute, ten minute visit can really change that childs whole day. Reporter proctor says she keeps hearing the same thing from parents, that this is the ntrst time they have seen their child smile in a long time. Chip reid, cbs news, washington. Brennan and its hard not to when you see those furry faces. Well be right back. T back. But could your medication do more to lower your heart risk . Jardiance can reduce the risk of cardiovascular death for adults who also have known Heart Disease. So, it could help save your life from a heart attack or stroke. And it lowers a1c. Jardiance can cause serious side effects including dehydration, genital yeast or urinary tract infections, and sudden kidney problems. 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I dont see it. Only pay for what you need. Liberty. Liberty. Liberty. Liberty. On tomorrows cbs evening news, an inside look at the heroic efforts to save a burning navy ship. And if you cant watch live dont forget to set your dvr so you can watch us later. And thats tonights cbs evening news, for norah odonnell, im margaret brennan. Good night. Captioning sponsored by cbs captioned by Media Access Group at wgbh acce this is the cbs ofnight news. Thar thanks for staying with us. The latest Battleground Tracker poll shows biden leading trump by six points in pennsylvania and wisconsin. Two of the states that swung the last president ial election to mr. Trump. The democratic nominee is expectedni mate as soon as today. He has already decided it will be a woman. And trust me, this reporter knows his choice is one of the best kept secrets in washington. Having a strong woman at his side will be nothing new for the former Vice President. We spoke to his wife, dr. Jill biden for cbs sunday morning. It is one of the most striking scenes o campaign 2020. Jill biden who is fending off a heckler. She has always stood up for her family. When you were a young girl, someone was picking on your little sister, you knocked on the town bullys door and what . And i pulled back and i punched him right in the face and i said, dont you ever throw worms on my sister again. Its more than just four more years at stake. Reporter decades later, she is more measured, when it comes to President Trumps taunts of her husband as sleepy joe. Would you call donald trump a bully . I am not going to call donald trump names. Then im doing the same negative thing that he does to other people and i will not stoop to that. Reporter that combination of grace and grit was forged here in new jersey where jill jacobs was born in 1951. Her dads name is here on the world war ii monument. Donald jacobs. We used to take polish, actually, and shine his name right there. Reporter this restaurant was once a pharmacy owned by her mothers parents. Her mom worked behind the soda fountain. Her dad showed up a lot. He was wooing your mother here, but your grandmother never really liked him. No, he was literally from the other side of the tracks. She told my mother, she could not see my father. Reporter but her parents married and though they moved away, they came back every weekend with jill and