people across the mexican border and into the united states. at some point, court papers say he wanted to bring four iraqi operatives in to support the operation, men who should be prepared to die. ohio senator rob portman. >> and they were going to choose to come across the mexican border, because that was the easier way to get access to our country. we've got to deal with this issue. >> reporter: and the court records allege an iraqi general who supported u.s. operations was the suspect's second target. simply, a spokesman for president bush said he has all the confidence in the world in the secret, law enforcement, and intelligence communities. john? >> catherine herridge, thank you. now to the election and primary day as voters in five states head to the polls. today's races are not just about the candidates, but also about how much sway former president donald trump still holds over the republican party. that's especially true in georgia, where cbs' ed o'keefe is watching the results. >> reporter: voters turned out

today across the state of georgia, the most high profile race the republican primary for governor pitted the current office older brian kemp against david perdue. kemp's victory may have come in support for mike pensce who openly defied president trump and purdue. >> when you say yes to brian kemp tomorrow, you will be sending a deafening message all across america that the republican party is the party of the future. >> reporter: trump called into a rally for purdue. >> get out and vote for david perdue. you will not be disappointed. >> reporter: the former president still fuming over kemp's refusal to change the results of the 2020 election. >> brian kemp is a turncoat, is a coward. it is a complete and total disaster. >> reporter: kemp's defiance of trump upset some voters we spoke to. >> i will not vote for brian kemp under any circumstances. >> reporter: but impressed others.

>> we want a strong leader for georgia and brian kemp is the best perso best. perdue stirred controversy monday night, slamming gubernorialandidate stacey abrams for criticizing georgia's poor rankings on infant mortality. >> she said it's the worst state in the country in which to live. she is not from here. my inclination is to say look, you don't like it, go back to where you came from. >> reporter: today, abrams, who has lived here since high school, responded. >> i have listened to republicans for the last six months attack me, but they've done nothing to attack the challenges facing georgia. >> reporter: one of president trump's preferred candidates who did win tonight is herschel walker, the college football star now poised to face off for senate control with raphael warnock. >> ed o'keefe in atlanta,

thanks. a second air force cargo plane loaded with formula from germany is expected to arrive in virginia tomorrow and will be greeted by first lady jill biden and the surgeon general. here is cbs'ing me oliver. >> reporter: all eyes are on this nestle distribution center near allentown, pennsylvania, where the second emergency shipment of baby formula will be sent after arriving at washington dulles airport. 114 palettes of hypoallergenic infant tomorrow la will be sorted and sent to hospitals and retailers this weekend. in an effort to get them faster, the federal government has waived drive time requirements for truckers. meantime, the fed's slow response to safety concerns at the country's largest formula-making plant is coming under fire. the first bacterial infection possibly linked to abbott's formula was reported in september. a whistle-blower report followed

in october. but the fda did not inspect the company's michigan plant until january 31st. abbott voluntarily shut it down in february. health and human services secretary xavier becerra says the fda's authority is limited. >> it is crazy to believe that in the 21st century we don't have the authority to really get the industry, a very consolidated industry, to tell us what things are looking like inside. if they're not policing themselves, we have to do more to make sure we are doing the right thing for parents who need that supply. >> reporter: parents like heather hughes of leesburg, virginia. her 11-year-old daughter reagan suffers from two rare gastrointestinal diseases and depends on a special formula to keep her alive. >> the government didn't take action until may. how does that sit with you? >> i am disappointed. they're just like too bad, too sad, and they didn't do anything about it. >> reporter: trucks will start rolling into this distribution center about four hours after

the plane lands in dulles tomorrow. this latest shipment is the equivalent of about a million eight-ounce bottles of formula. john? >> meg oliver, thank you, meg. one prilosec otc in the morning blocks heartburn all day and all night. prilosec otc prevents excess acid production that can cause heartburn. so don't fight heartburn, block it with prilosec otc. charmin ultra soft has so much cushiony softness, it's hard for your family to remember that they can use less.

sweet pillows of softness! this is soft! holy charmin! oh! excuse me! roll it back, everybody!! [all at once] sorry. new charmin ultra soft is now even softer so you'll want more! but it's so absorbent, you can use less. so it's always worth it. now, what did we learn about using less? you've got to, roll it back everybody! we all go, why not enjoy the go with charmin.

listen, i'm done settling. because this is my secret. i put it on once, no more touch ups! secret had ph balancing minerals; and it helps eliminate odor, instead of just masking it. so pull it in close. secret works. there is breaking news from the korean peninsula. u.s. and south korean military officials say north korea fired three ballistic missiles into the sea of japan food.

the north has conducted at least 20 other missile tests this year, launching at least one that was capable of delivers a nuclear warhead to the continental u.s. now to the war in ukraine, which today marked three months since the russian invasion. the war rages on three months in, and today a cbs news crew came dangerously close to the fighting. here is imtiaz tyab of cbs. >> reporter: it's only a handful of farmhouses and fields, but russia has been targeting this village ruthlessly. major sirhei and his soldiers have been defending it for weeks, but have recently changed tactics. this is now an offensive. you are targeting russian offenses? >> yes targeting every day. we have to do this, must. >> reporter: the russian forces aren't backing down. we just had some incoming russian shelling. we're just on our way to find a

shelter in this disused farmhouse. just we can hear they're still firing. on the way, we're forced to duck under a tree. >> down you go. >> some pretty serious incoming from the russian side. this was an area they occupied up until six weeks ago, and they really want it back. >> getting closer. >> reporter: a russian drone is circling above. it's now or never. so we sprint to a nearby root cellar that ukrainian forces have been using for weeks. the shell strikes are now just 50 yards away. with us is oksana. is this normal for this area? "by any measure, this is not normal," she says. "the russians are giving us a hard time, but we can tell they're getting weaker."

after several more strikes, we're given the order to run back the way we came and to our vehicles. and then quickly drive towards safety. imtiaz tyab, cbs on the kherson front line. front line. still ♪ ♪ ♪♪ voltaren. the joy of movement. ♪♪ how did olay top expensive creams? like this voltaren. the joy of movement. with hydration that beats the $100 cream in every jar of regenerist retinol24 collagen peptide new vitamin c and the iconic red jar can't top this skin shop now at olay.com after years on the battlefield migraine attacks followed me home. nurtec is the only medication that can treat and prevent my migraines. don't take if allergic to nurtec. most common side effects, in less than 3% were nausea, indigestion, stomach pain.

waxed. natural. sensitive. new dove ultimate antiperspirant. our unique water based formula and 6x more glycerin. helps restore skin to its best condition. new dove ultimate. (announcer) it's time to lose the weight for good. try golo. helps restore skin to its best condition. no subscriptions, just real results that last! -i've lost 70 pounds. -58 pounds. -22 pounds. -128 pounds. 138 pounds in nine months. crazy, right? (laughing) (announcer) it's time to put dieting behind you and get your health and vitality back. (woman) once you start this plan, and you do what you're supposed to do, you are going to feel amazing, you're gonna have a new life. (announcer) change your life now at golo.com there is no letup in the outbreak of severe weather. storm chasers caught this massive tornado last night near the town of morton, texas.

fortunately, no serious damage or injuries were reported. tonight, 22 million americans are under severe thunderstorm watches. a large storm system is moving across the south central u.s. with thunderstorms, heavy rains, and flooding. a suspect with a long criminal history who was wanted for the deadly shooting of man on a new york city subway train turned himself in today. 25-year-old andrew abdullah negotiated his surrender through a brooklyn pastor who showed up at the police station in a rolls-royce. police say the murder just before noon on sunday was unprovoked. the cdc said today they are tracking new suspected cases of monkeypox here in the u.s. health officials are investigating a likely case of the virus near seattle, washington, and another case in sacramento, california. other suspected cases have been discovered in new york, florida, and utah. the country's only confirmed case so far was found in massachusetts last week.

there are 131 confirmed cases of monkeypox in 19 countries. we'll be right back with an update on

we end tonight where we

started the broadcast. at least 18 children and one teacher are dead following an elementary school shooting in south texas. thursday was supposed to be the final day of school in uvalde. and is there a more wonderful time than those last days of school when you're a child and you can almost taste summer on your tongue. the possibility stretches out with days of ice cream at the lake and trips to see faraway relatives, relatives who are now making emergency plans to travel in the opposite direction. instead of celebrating school's end, now families have had their whole world end, and the community will forever mark time as before today and after. it is a tragedy that should stop us all, but we know it won't stop. there will be another tragedy and another and the pins on america's map of tragedy will grow. for norah o'donnell, i'm john dickerson. good night.

this is cbs news flash. i'm matt pieper in new york. dth eaethol bee tn rising h at a shooting at an elementary tary sl 1yearld nman crashed his car outside the school before going inside and shooting whoever was in his way. to primary election results. in georgia, cbs news projects brian kemp will win the republican nomination. he'll take on democrat stacey abrams, whom he defeated in 2018. and cbs news projects that herschel walker will win the republican nomination to take on incumbent democratic senator

raphael warnock. for more news, download the u.s. news app on your cell phone or connected tv. i'm matt pieper, cbs news, new york. ♪ >> announcer: this is the "cbs overnight news." >> good evening and thank you for joining us. i'm john dickerson in for norah. tonight another mass shooting in america, this time at an elementary school where at least 14 children and a teacher were killed. president biden just addressed the nation, and we'll have more on that in a moment. on the brink of summer vacation, lives in the small town of this is the deadliest school shooting since the stoneman douglas parkland school shooting a responng officer. that accordingo the texa

goveor. police said the shooting happened at 11:32 a.m. local time at robb elementary school. texas governor greg abbott said the gunman entered the school with a handgun and likely a rifle and was shot by a responding officer. the department of homeland security are involved in the investigation. we have a lot of news to get to. and our houston affiliate khou starts us off. good evening. >> reporter: good evening, john. that's right. cbs did confirm that the gunman did have a handgun, and also an assault rifle. and witnesses describe just a chaotic scene today, even reports of parents rushing to the classroom to pull their kids out of the windows. >> he shot and killed horrifically, incomprehensibly 14 students and killed a teacher. >> reporter: police say just before noon, a gunman walked

into robb elementary school in uvalde, texas and started shooting. >> the shooter was salvador ramos, an 18-year-old male who resided in uvalde. it's believed that he abandoned his vehicle and entered into the robb elementary school in uvalde with a handgun, and he may have also had a rifle. >> reporter: abbott says the gunman was a senior at a nearby high school, and he shot his grandmother before entering the elementary. within minutes, heavily armed police rushed to scene and confronted the shooter. >> mr. ramos the shooter, he is -- he himself is deceased. >> reporter: 13 children were transported to the hospital for treatment. witnesses say frantic parents rushed to the school. two victims, a child and an adult, were flown to san antonio hospital. >> this school has children in second, third and fourth grate. multiple agents responded to the

shooting. one cbp agent has been shot in the head. that agent is at a local hospital getting treatment and remains in stable condition. >> we want to keep all the families in our players. i know you do as well. and we also want to respect the privacy of the family. >> this comes a little over a week after ten people were killed in mass shooting at a buffalo supermarket. the motive is unknown at this time and the investigation is ongoing. >> the suspect did act alone during this heinous crime. >> reporter: well, this is the last week of school here. the last day was actually supposed to be on thursday. but now school officials are telling us school is canceled for the rest of the year. john? >> in uvalde texas, thank you. now to the president's address to the nation in the aftermath of today's tragic events. it was the second time in less than two weeks that the president spoke about a mass shooting in america. cbs' nikole killion is at the white house. nikole, the first thing we could hear from the president was an audible sigh.

>> reporter: that's right, president biden was very emotional with first lady jill biden by his side as he expressed his horror and frustration at this tragedy, saying it's time to turn our pain into action. >> as a nation we have to ask when in god's name are we going to stand up to the gun lobby? when in god's name we do what we all know in our gut needs to be done. i am sick and tired of it. we have to act. and don't tell me we can't have an impact on this carnage. >> reporter: the president's remarks come about an haf trip to asiaile ard air force one, he called texas governor greg abbott and offered any and all assistance to deal with this horrific shooting.

flags here at the white house have been lowered to half-staff. john? >> nikole killion at the white house. today's deadly mass shooting is just the latest in what has sadly become an all too common occurrence in the united states. it's a crisis and trajectory detailed earlier this week in a newly released fbi report. cbs' scott macfarlane has been speaking with justice department officials this week. >> reporter: even before the horrors of uvalde, texas, in buffalo just ten days ago, the arrows were pointing in an alarming direction. 61 active shooter incidents in 2021. that's twice as many as in 2017. and it's even a spike from just the year before. the shooting incidents took place in 30 states last year, six in california and five each in georgia and texas. the total numbers shot 243, including 100 killed. >> our hearts are breaking for these families. every ounce of love and thoughts and prayers we can send, we are

sending. but i'm here in this floor to beg, to literally get down on my hands and knees and beg my colleagues. find a path forward here. work with us to find a way to pass laws that make this less likely. >> reporter: when it comes to shootings in schools, the group every town for gun safety, which formed after the sandy hook tragedy in 2012 reports in 2022, there were at least 77 overall incidents of gunfire on school grounds. and before today, 14 deaths in or near schools this year. a total that more than doubled this afternoon. the fbi director christopher wray is set to testify tomorrow before the u.s. senate. he was already expected to be asked about the federal response to mass shootings and to gun crimes in america. john? >> scott macfarlane, staggering. thank you. there is no letup in the

outbreak of severe weather. storm chasers caught this massive tornado last night near the town of morton, texas. fortunately, no serious damage or injuries were reported. tonight, 22 million americans are under severe thunderstorm watches. a large storm system is moving across the south central u.s. with thunderstormsav and flooding. a suspect with a long criminal history, who was wanted for the deadly shooting of man on a new york city subway train turned himself in today. 25-year-old andrew abdullah negotiated his surrender through a brooklyn pastor who showed up at the police station in a rolls-royce. police say the murder just before noon on sunday was unprovoked. the cdc said today they are tracking new suspect cases of monkeypox here in the u.s. health officials are investigating a likely case of the virus near seattle, washington, and another case in sacramento, california. other suspected cases have been discovered in new york, florida, and utah.

the country's only confirmed case so far was found in massachusetts last week. there are 131 confirmed cases of monk how did olay top expensive creams? like this with hydration that beats the $100 cream in every jar of regenerist retinol24 collagen peptide new vitamin c and the iconic red jar can't top this skin shop now at olay.com do you have a life insurance policy you no longer need? now you can sell your policy - even a term policy - for an immediate cash payment. we thought we had planned carefully for our retirement. but we quickly realized we needed a way to supplement our income. if you have $100,000 or more of life insurance, you may qualify to sell your policy. don't cancel or let your policy lapse without finding out what it's worth. visit coventrydirect.com to find out if your policy qualifies. or call the number on your screen. coventry direct, redefining insurance. of course you've seen underwear that fits like this... but never for bladder leaks. new always discreet boutique black.

i feel protected all day, in a fit so discreet, you'd never know they're for bladder leaks. always discreet boutique

♪ this is the "cbs overnight news." >> hey there, everyone. i'm errol barnett in washington. thanks for staying with us. the memorial day weekend is fast approaching, kicking off the unofficial start of summer and the summer travel season. and if you're hitting the roads, the rails, or taking to the skies, you can expect just about everything to cost more. in april alone, the price of airfares surged more than 18%. that's the largest monthly increase on record. aaa expects more than 39 million americans to travel by car this weekend. that's up 8.3% from last year and brings travel volumes almost

in line with those we saw back in 2017. meanwhile, the average cost of a gallon of regular gas remains at an all-time high. and the price of diesel is setting records as well. carter evans brings us the latest. >> fuel prices like $6.39 a gallon. >> reporter: imagine paying that for a fill-up of more than 100 gallons. >> a regular fill-up would have been just say six months ago about $700. now it's about a thousand dollars. >> reporter: it's what truckers are facing across the country for diesel, and you're paying the price, according to oil analyst tom nythg that moves by freight ascria t surcharges. probably not the worst of the di nesexel smourntchh.arges. >> reporter: the biden administration is now considering tapping a rarely used diesel reserve to help ease prices.

>> a million barrels of diesel in this reserve, in the whole grand scheme of things, how much is that? >> very incidental. it will help, but it doesn't move the needle much. >> reporter: last month, the white house tapped the strategic petroleum reserve to help ease skyrocketing oil prices. but with memorial day weekend coming up, more than 39 million people are expected to travel, increasing demand for gasoline. >> i just don't think there is any magic bullet at the moment. it's going to be tough. it's going to be a tough summer. >> reporter: and he says fuel prices could keep rising if any refineries were to shut down. >> august looks like it's going to be a very active hurricane season in the gulf of mexico, where, you know, about half of our refining capacity is on the coast. anything goes when we get to hurricane season. that's true for gasoline. it's true for diesel. and it's true for jet fuel. >> reporter: i'm carter evans in los angeles. overseas, the president of

the european commission says russia is deliberately targeting grain warehouses across ukraine in an attempt to use famine has a weapon of war. the russian army has stolen tons of grain and farm equipment, and is blockading reports to keep the remaining food from reaching those in need. in the devastated city of mariupol, recovery work is digging through rubble of destroyed apartment buildings unearthed another 200 bodies. and in the east, debora patta spent time with a private militia doing its part to protect one ukrainian village from russian invaders. >> now we're in action area. >> reporter: this man has become adepat ve. n chatter ell inke h men of his russia's firing line. >> so this is our first place

from where we started. >> reporter: just a few months ago, he was a wealthy businessman. now he's using his millions to fund a volunteer defense unit. we're off to the next base. he's convinced ukraine has a clear advantage in this war. >> ukrainian people are difficult from russians in one very important thing. ukrainians love freedom. >> reporter: our next stop is across an open road. >> it's more or less safe, but you better watch your step any way. two pairs, let's go. >> reporter: it's cloudy skies. >> it's cloudy. >> reporter: so it obscured the view. a quick sprint to avoid being spotted by russian drones. >> do you think i am not worried? i am also worried. everybody is worried here. everybody is afraid. >> reporter: but if an army runs on its stomach, this one is doing very well. food and weapons pre alongside each other.

tonight it's fish. it looks delicious. delicious. delicious. and we're off again. do you run marathons? >> yeah, three times. once in new york. >> reporter: me too. i did the new york marathon. >> reporter: he is dismissive of russia's fighting capability. are they any good? before the war, russia had this reputation for being -- >> no, it's [ bleep ]. >> reporter: one last quick stop. >> this is the face of this war. not machine guns. not rifles. >> reporter: craters. debora patta, ukraine. >> vladimir putin's disinformation campaign makes sure those scenes of destruction in ukraine aren't shown on russian tv. part of his justification for the invasion is the false claim that the u.s. has helped ukraine developetatn e floor of the

cal apson i representaves.loweio chrilivesay got exclusiveac sso ukina >> reporter: it's here, russia says, where ukraine and the united states are developing biological weapons, a sleepy lab that in this neighborhood isn't so sinister at all. that's rambo, the only security at kyiv's public reference laboratory. we're the first journalists allowed inside since russia's invasion, but it's routinely inspected by international agencies like the w.h.o. natalia, the chief of research, shows us equipment for containing some of the most infectious diseases known to humankind. cholera, anthrax, everything. >> everything. >> reporter: not to make weapons, she tells us, but to test for diseases in patients. i see. so you use it to identify the pathogen in other people. >> yeah. >> reporter: correct? >> absolutely. >> reporter: but that all changed once the russian army

invaded ukraine. so there has been active shelling in this area? >> yeah. >> reporter: since the war, you've destroyed all of the strains? >> yes. because it was very high biological risk. >> reporter: if this building was attacked, that could have been dangerous if those strains had gotten loose. >> if, if. it's possible. >> reporter: so you put the pathogens in here. >> yes. this is a special program. >> reporter: and it destroys them? >> yes. >> reporter: it makes them so they can't hurt anybody. >> yes, of course. >> reporter: by order of the government, she says, all particularly dangerous strains in ukrainian labs were killed. of course you're familiar with the accusations from russia that this laboratory and others like it have been developing biological weapons. >> this crazy fake, nonfact, not history, just blah, blah, blah. >> reporter: but the viral conspiracy theory lives on. the kremlin even insists it's

one reason russia invaded ukraine to begin with. president putin has said on numerous occasions that the threat has come right to our border, said russian foreign minister sergey lavrov. military laboratories creating pathogens. moscow's baseless claim has been amplified online and on tv. what exactly are they doing in these secret ukrainian biolabs? >> you don't know what they're working on over there. see, the u.s. be doing some stuff. >> reporter: a poll found 26% of americans believe it, including members of congress. >> well, come to find out in fact it's true. >> reporter: instead, what's really is russia's war, fought not just with bullets and bombs, but with disinformation and deceit. are you afraid that the russian military could target this building? >> it's possible. it's possible. >> reporter: when we first heard these lies about bioweapons, we thought it was funny, she says,

but we're not laughing anymore. chris livesay, kyiv. after years on the battlefield and multiple concussions, migraine attacks followed me home. i wasn't there for my family and i was barely functioning. until nurtec odt changed all that. nurtec is the only medication that can treat & prevent my migraines. don't take if allergic to nurtec. the most common side effects were nausea, stomach pain, and indigestion. now, i run a non-profit for other green berets. when i feel like myself, i can do so much more. what will you do? ask your doctor about nurtec today. how did olay top expensive creams? whatlike this do? with hydration that beats the $100 cream in every jar of regenerist retinol24 collagen peptide new vitamin c the red j shop at ay.camin c we gave zzzquil pure zzzs restorative herbal sleep. to people who were tired of being tired.

i've never slept like this before. i've never woken up like this before. crafted with clinically studied plant-based ingredients that work naturally with your body. for restorative sleep like never before.

er pr uppe ingredients that work naturally with your body. bounty picks up messes quicker do you struggle with occasional nerve aches anisx mo 2d reorbe a, ntbs you in your hands or feet? ingredients that work naturally with your body. try nervivenerve relief from the world's #1 selling nerve care company. nervive contains alpha lipoic acid to relieve occasional nerve aches, weakness and discomfort. try nervivenerve relief. between supply chain issues and a lack of worker, the price of a new home is through the roof. and that's got some house hunters thinking outside the

box. well, you might say inside the container. luke burbank explains. >> we're honored to call this home. >> oh, yeah. >> reporter: for zack and brie smithy, the smell of old tires will forever be associated with home. >> it reminds me of the beginning stages of the construction here. >> yeah. >> i want to tell the television viewers at home, this house doe s,, 3,000-square-foot two-story structure, made out of eight shipping containers. that's right. those big metal boxes you see transporting all manner of goods, including sometimes tires. >> manufactured in shanghai. traveled around the world 12 times carrying goods before they landed in a yard in st. louis. >> reporter: which is where zack and brie went to inspect their future home. >> it was still like kind of surreal to go to this container

yard with thousands and thousands of shipping containers and think hmm, we're going to live in this. >> reporter: malcolm mcclain, american truck driver, first a applied to patent the shipping container in 1954. and his invention has changed the way we live and trade. today an estimated 90% of all goods pass through as many as 170 million shipping containers circulating around the world. and increasingly, people are using them in ways their inventor could have never imagined. houses, coffee shops, restaurants, offices, swimming pools, even a stadium for the 2022 world cup in qatar is, you guessed it, made out of shipping containers. the smithys were attracted to shipping containers because they offered a chance to recycle and show off the couple's unique style. but keeping the project on

budget meant doing almost all of the work themselves. >> many people have unrealistic expectations on how cheap a container home is going to be. they forget that the expensive parts like kitchens and bathrooms and hvac electric and pluming are still there. >> reporter: the result of their work is a gorgeous home full of quirky and fun upcycled details. >> cheers. >> cheers. >> reporter: another result? >> we had no idea all the opportunity that has come to us since building this home. it's pretty crazy. >> reporter: zack started a side business helping other people build shipping container homes. >> i think that people see the way houses have been built all these years, and they think that's what they have to do. but you can express your own creativity however you want. and i think that this has been a way for us to do that. >> reporter: proving, perhaps, that sometimes good things come

to those who think inside the box. this room is one container with -- and now most admired alum! get up there. this is so embarrassing. there's no way it's me.

you know her.... you love her.... ruh roh. what are you doing here? it's anna gomez! who? our first gigillionaire! with at&t fiber, anna's got the fastest internet with hyper-gig speeds. i didn't know you went to this school. we have a lot in common. live like a gigillionaire with at&t fiber. now with speeds up to 5-gigs. limited availability.

conservationists in australia say climate change is taking its toll on the world's largest coral ecosystem, the great barrier reef. a survey found more than 90% of the 1400-mile reef is suffering from coral bleaching. and although coral has come back in the past, it's never been this bad. tina kraus reports. >> reporter: the colorful coral of australia's great barrier reef is fading fast. scientists surveying the underwater ecosystem found 91% of the areas they visited this year experienced bleaching. >> this is heartbreaking. this is deeply troubling. it shows that our barrier reef really is in very serious trouble indeed. >> reporter: scientists blame a prolonged summer heatwave and

warming waters from climate change. it's the fourth mass bleaching that's hit the world's largest coral reef system in seven years. >> it's always sad. because i feel like this shouldn't be happening. we should have been able to fix this. >> reporter: climate activists are calling on australia's government to act now to stop the destruction of the reef. >> it's climate change that is driving the bleaching of the reef. climate change itself being driven primarily the burning of coal, oil and gas. >> reporter: scientists hope most of the coral can recover, but say the survival of the reef is in jeopardy. >> if we have any shot at a living reef in future, we have to be bringing emissions down very quickly through the 2020s. >> reporter: one of the world's greatest underwater treasures is depending on it. tina kraus, cbs news. >> and that is the "overnight news" for this wednesday. for some of you, the news continues. for others, check back later for "cbs mornings." and of course you can follow us

online any time at cbsnews.com. reporting from the nation's capital, i'm errol barnett. this is cbs news flash. i'm matt pieper in new york. the death toll has been rising at a shooting at an elementary school in texas. at least 19 children were killed and two adults at the robb elementary school in uvalde. that's 85 miles west of san antonio. authorities say the 18-year-old gunman crashed his car outside the school before going inside and shooting whoever was in his way. to primary election results. in georgia, cbs news projects governor brian kemp will win the republican nomination. he will take on democrat stacey abrams, whom he defeated in 2018. and cbs news projects that herschel walker, the trump-endorsed former football player will win the republican nomination and take on incumbent democratic senator raphael warnock.

for more news, download the u.s. news app on your cell phone or connected tv. i'm matt pieper, cbs news, new york. it's wednesday, may 25th, 2022. this is the "cbs morning news." breaking overnight, the death toll rises after a mass shooting at a texas elementary school as we learn new heartbreaking details about the investigation. >> why are we willing to live with this carnage? why do we keep letting this happen? >> presidential plea. for the second time in just over a week, president biden addresses the nation questioning what can be done to prevent another tragedy. all of us are just grieving horrifically at yet another act of evil and mass murder. >> lawmakers react. the debate on gun control begins, and the action already taken by the senate.