stranded under feet of flood water. .thank you again for joining us. here is our top story. there are new and potentially explosive developments in the whistleblower complaint which the inspector general deemed urgent and credible. there is a lot we still don't know, but what we are learning paints a troubling and some say familiar picture. just acosta reports for us from the white house. >> sitting in the oval office with the australian prime minister, the president struggled to give answers about the whistleblower. first he described them as partisan. >> it's a partisan whistleblower. shouldn't even have information. >> then mr. trump said he didn't know the whistleblower. >> i don't know the identity of the whistleblower. i just know it's a partisan person. but i can say that it was a totally appropriate conversation. it was actually a beautiful conversation. >> democrats wants to know if the complaint is about mr. trump's conversations with the ukrainian president over the summer and whether it delved into a 2020 rival, joe biden. mr. trump repeatedly pressured the president to investigate biden during that discussion. asked directly about that conversation earlier in the day, the president wouldn't answer the question. >> when did you discuss joe biden, his son or his family with -- >> it doesn't matter when i discussed, but somebody ought to look into that and you wouldn't because he's a democrat. and the fake news doesn't should into things like that. it's a disgrace. >> reminiscent of mr. trump's calls to look into hillary clinton's emails. >> russia, if you're listening, i hope you're able to find the 30,000 emails that are missing. >> biden's ties to ukraine have been a sujtd of interested inside the trump world for months. he admitted on cnn that he had spoken to ukrainian officials about biden after first denying it. >> did you ask the ukraine to investigate joe biden? >> no. >> you never asked anything about -- >> the only thing i asked about joe biden is to get to the bottom of how it was that wutsenko, who was appointed, dismissed the case against -- >> so you did ask ukraine to look into joe biden? >> of course i did. >> and alleged that had something to do with biden's son, hunter, involvement in the country. >> we have six hours, if the prosecutor is not fired, you're not getting the money. well, son of a -- he got fired. and they put in place someone who was solid at the time. >> if in 2017, the president defended his son's actions. er. >> most people would have taken that meeting. it's called opposition research or even research into your opponent, but it's verdict asked where they have information and you take the information. and there are inconsistencies on the comments of the whistleblower. the president claimed he hadn't read the complain while saying others had. >> i just tell you, everybody has read it. they laugh at it. >> three different sources close to the white house have said rudy giuliani only made this worse. >> joe biden is slamming president trump's comments. the former vice president, now the democratic front-runner in the 2020 selection was campaigning friday from the pivotal state of iowa. >> wait a second. not one single credible joutd let has given any credibility to his assertion. not one. so i have no comments except the president start to be president. >> let's talk about these developments with natasha. thanks for coming on. let's begin with biten right there having none of it, but at the same time, the president is allegeded biden may have something to high. what do you make of these developments? >> it's just incredible. i don't even know where to begin. to just guess us started, authoritarian regimes all around the world hold elections and they hold selections because they know they can undermine the credibility of the election to make the playing field not level, not faf. i don't see how there's any difference from that from what trump is doing. the allegation is that he's trying to use his power to influence an selection. not just using his power internally, but seeking out a foreign actor. this is verifying. and what actually scares me more is that i don't think the republican party is hair tied by this. they seemed to be going on the offensive saying this is much ado about nothing. rudy giuliani is saying yes, i did this, but this is no big deal. so then it's left to the democrats to see what they want to do on this. if this is not an itch peachble offense, i don't know what is. and it's just so brazen, as well. to get to the comments about what joe biden was saying, he is, like many of us, flabbergasted that we have a president that is so brazen in his abuse of power and then there's going to be questions about the credibility of the election again. we've already been through this in 2016. >> what are the geopolitical implications of this situation that we're hearing about with mr. trump and ukraine? >> well, the concern is that trump is so close to russia and to putin in particular and that he's withholding aid from ukraine. and ukraine at the moment is trying to defend itself from russian aggression. and he's withholding this aid and maybe saying to them, well, if you -- we don't know, but this is just something to speculate that we're going to provide more aid to you if you help us in undermining the credibility of our own election and go after joe biden's son. and whatever joe biden was doing in terms of getting a prosecutor removed, which are at the time many countries had been doing the same thing, too. so theism mications are actually very scary because we need to have stability in that particular region and we see trump possibly abusing power to undermine that. >> and regarding biden, let's talk about this angle. we're learning about his goal and his son's actions with the country. how does biden address the horrible optics of this? well, i agree with you with the optics are really bad. it doesn't look good that his son was on the board of a gas company and that he's making money and probably making a lot of money and benefiting from the fact that his father is in a position of power. the issue is, though, there's no evidence of any wrongdoing yet. and that's something that they haven't proven yet and joe biden will probably need to divert from this and focus on what happened with trump, that there was a massive abuse of power that allegedly is taking place and he also needs to focus on the fact that there are concerns that trump and his department of justice, name le wily william be trying to bring out this whistleblower and not protect them and possibly even go after this whistleblower. there's concerns that the whistleblower may be in danger. so that is doubly concerning, not just that trump is abusing power, but that the dcht of justice is supporting trump and not providing a -- >> yes, it's undermining the reason for the whistle monblowe statute. what about not releasing the record to congress, which is supposed to happen if there's anything to it. what have they got to hide? >> exactly. and there have been all kinds of confusion with the way trump has responded to this and that has made things look worse. they should relead this information to congress. trump should be more forthcoming about what happens in this phone call and trump, instead, tried to confuse everybody by saying this whistleblower is very partisan. therefore, anything that this person says has no credibility. then saying i have no idea who this person is. both facts can't be true. we would hope that we can have an environment where whistleblowers can come forth with information that the inspector deemed to be urgent, credible and very, very important. >> this is another one that we'll continue on be watching as we learn more. we always appreciate your insights. natasha, thank you. >> thanks so much for having me. >> sure thing. millions of young people and not so young people took to the streets demanding action on climate change friday. look at the scenes across the world in nearly every corner of earth. they were united in their call for adults to do something addressing the issue. that's chicago right there. here is new york. more than 1 million students were allowed to skip school for the walkout the driving force behind it all, 16-year-old greta tunberg. she said 4 million people in 163 countries took part and warned those that fooeld feel threatened by the movement that change is coming. >> in australia, they gathered in hundreds of thousands, determined to make their voice heard. >> it seems that the only people standing on the wrong side of history on this issue is our government. >> i really want to change the future because it's our future and i want to grow up in a good place. >> i'm here for my kids' future. honestly, the politicians are doing nothing and i'm sick to death of it. >> in asia, too, students demanded action. from their political leaders. it was a call to action that reverb raced around the world. in the philippines, in india. and in africa. here in london, thousands marched on parliament, many of them children accompanying by their parents and who had made their own home made signs. the message was the same as the world over. it's time today's current leaders took stock of the environmental legacy they're leaving behind. >> i'm not going to have a vote in 18 months. i don't have that political power yet. so i'm exercising my voice the only way i can. >> i'm trying to make people think, you know, actually, this is something i really need to be thinking about, something i really need to be acting on. >> it was a similar theme from protesters in the french capital. and also in germany, where activists shut down roads. >> a lot of people support our movement, but we want to go a step further because politicians decide on our future. we urgently demand that something happens. >> a year ago in sweden, greta tunberg began a weekly school strike for climate. today, on those same streets, students gathered in the thousands. while she travels the world advocating for change, a tribute to the power of one individual too young to vote, yet influential enough to make world leaders listen. cnn, london. one week after an attack on saudi oil facilities disrupted the global oil supply, the u.s. is sending more troops to the region. the pentagon said they will be deployed to skraub and the uae focused on air and missile defense. iran, of course, denies it was responsible. our nic robertson is in saudi arabia for us following these developments. what more do you know about these troops role? >> so far, we don't have any information coming from the saudi authorities. it is the weekend here. typically, they would be slow to respond. but over the summer when there were tensions ka lating with iran, additional u.s. troops were send here, several hundred with the same role that those are being designated to become here. so it will beef up the defenses likely. that is something clearly that the saudis need at the moment because clearly their defenses were lacking and that was something we got a real insight when we went to the two sites of the attack last weekend. at ground zero in the attacks last weekend, t clean up is under way. workers at the refinery barely pausing. the saudi officials bring us along to see. what we could film, carefully controlled. no one here in any doubt this site is a target. it is the beating heart of the economy. >> this gives you an idea of the size of the shrapnel flying around here. that is the ferocity of the attack. only six days ago, the kingdom's lifeblood here burning out of control, spewing smoke. so it's the piping that is the worst damage ed of everything. >> the piling and the poilers and many things. >> and how long is it going to take to repair? >> it's coming back. this was not the same. >> what have you done to it already? >> we fixed the whole thing. supply chain is moving like a train and people are working day and night. >> 160 miles away at the world's largest oil refinery, a similar clean up is under way. 18 droens that the saudis say were manufactured by iran make critical strikes at choke points. and this huge hole here gives you an ideas how big this was. the plant is vast. the kraegs is starthsing. the impact is up there at the top of the scaffolding. north is up there. the strike from the northwest. that's another reason saudi officials say they believe that iran's hand is behind this attack. iran vehemently denying it was. officials here say they will be back up to full pat by the end of september, but that may be the easy part done. >> so the rebuilding of the plant may be the easy part of resoaring faith that this was a one off strike and, of course, in that context bringing in u.s. troops with additional systems to put those in place will help boost that levels of confidence. however, they're probably not going to plug all the holes that saudi arabia appears to have at the moment. next on "cnn newsroom," houston hit again. flood waters starting to recede after hundreds of drivers were left stranded. we'll have the latest on the recovery effort, next. parts of me i didn't even know. i find out i'm 19% native american, specifically from the chihuahua people. what?! that's... i find that crazy. it traces their journey in the mid-1800s from central mexico to texas. learning about the risks they took for a better life... ...it gives me so much respect and gratitude. it just shed so much light in my past that i never even would've known was there. 20 million members have connected to a deeper family story. order your kit at ancestry.com. they have businesses to grow customers to care for lives to get home to they use stamps.com print discounted postage for any letter any package any time right from your computer all the amazing services of the post office only cheaper get our special tv offer a 4-week trial plus postage and a digital scale go to stamps.com/tv and never go to the post office again! - in the last year, of cybercrime every second. when a criminal has your personal information, they can do all sorts of things in your name. criminals can use ransomware, spyware, or malware to gain access to information like your name, your birthday, and even your social security number. - [announcer] that's why norton and lifelock are now part of one company, providing an all in one membership for your cyber safety that gives you identify theft protection, device security, a vpn for online privacy, and more. and if you have an identity theft problem, we'll work to fix it with our million dollar protection package. - there are new cyber threats out there everyday, so protecting yourself isn't a one time job, it's an ongoing need. now is the time to make sure that you have the right plan in place. don't wait. - [announcer] norton 360 with lifelock. use promo code get25 to save 25% off your first year and get a free shredder with annual membership. call now to start your membership or visit lifelock.com/tv thunderstorm imelda left texas swimming. emergency responders conducted hundreds of high water rescues. our ryan young has the story from texas. >> tonight, southern texas is recovering from heavy rains. as the rains slow, revealing the damage. houston's fire department responding to over 2,000 emergency calls with sheriff's officers rescuing more than 400 people trapped in the water. friday morning, people were still being rescued. this family living north of houston spent the night in their attic waiting for help. in kingwood, texas, john aigo's house is in rubble on his front lawn. >> it came halfway to the driveway. my wife, my child, my son and the dog had to swim out. >> the national weather service reporting dramatic differences in the rainfall amounts. harris county getting 15 inches. at least two people are dead, including one man who reportedly drown after he drove his car into this flooded interngz. >> we always tell folks, turn around, down drown. >> chaos on the major highways. as hundreds of vehicles are abandon, swallowed by the water, police say they've towed more than 1600 cars and are working to reunite them with their owners. interstate 10 shut down, a lose barge crashed into the bridge smashing support beaches. underpasses cracking to the pressure. some texans who lived through hurricane harvey's devastation just two years ago starting over again. >> it's hard breaking, you know? to lose everything twice. >> they can still see the water is that front door right there. the big issue, a lot of people haven't had a chance to go into their homes to assess it for themselves. they're worried about what will be left when they go back inside. ryan young, cnn, huffman, texas. >> derek van dam is with us. you covered harvey two years ago. and it was said back then if houston doesn't build back its resilience, it will happen again. it has. what's behind this? >> as our planet continues to warm, the atmosphere has a better ability to hold moisture. so we get these storms that produce incredible amounts of rain. we're seeing tropical systems slow down and they sit over locations for an extend period of time. this was unofficially the fifth wettest tropical cyclone in continental history. these are troubling scenes that played out just 24r, 48 hours ago. they were spared the worst of the rainfall. the heaviest was just to the east of the metro downtown houston. but, wow, they saw their fair share. they closed the airports there. they had over a foot of rain for most locations in the city of houston. but to the east, over 40 inches of rain fell from what was tropical storm imeda. the rivers and bayous are going to take some time. you can see our forecast radar imagery quieting down. the remnants of imelda have slowed down. this is an meal storm system that is approaching the peninsula. heavy rainfall, strong winds, this is the gulf of california between the baha peninsula and the gulf of mexico. this storm has the ability to strengthen further. you can see the storm moving over the gulf of california. so there's the official national hurricane center forecast. how will it impact us here in america? heads up phoenix, heads up as you head up into the new mexico region, as well. there's potential for valley flooding in that area, as well. a plan to raid the mysterious area 51 didn't go as expected. the turn out missed expectations. what happened? that is next. e day arrives, you'll be more ready to kiss cigarettes goodbye. when you try to quit smoking, with or without chantix, you may have nicotine withdrawal symptoms. stop chantix and get help right away if you have changes in behavior or thinking, aggression, hostility, depressed mood, suicidal thoughts or actions, seizures, new or worse heart or blood vessel problems, sleepwalking, or life-threatening allergic and skin reactions. decrease alcohol use. use caution driving or operating machinery. tell your doctor if you've had mental health problems. the most common side effect is nausea. talk to your doctor about chantix. yeah, i've had some prettyeer. prestigious jobs over the years. news producer, executive transport manager, and a beverage distribution supervisor. now i'm a director at a security software firm. wow, you've been at it a long time. thing is, i like working. what if my retirement plan is i don't want to retire? then let's not create a retirement plan. let's create a plan for what's next. i like that. get a plan that's right for you. td ameritrade. ♪ welcome back to "cnn newsroom." a source confirms that president trump pressured the president of ukraine to investigate the son of former u.s. president joe biden. it happened around eight times in a single phone call back on july 25th. president trump told reporters friday, quote, it doesn't matter what i discussed. the u.s. is sending more rooms to saudi arabia. the pentagon saying they will focus on april and missile defense. the u.s. blames iran for the attack and has hit the country with new sanctions. tehran denies it has anything to do with it. young people staged a global climate change walkout. cnn hasn't confirm the turnout. we want to take you now to the streets of paris where another yellow vest protest is taking place. they started, i'll recall, last november. the demonstrations were first reactions to attacks on petrol gas. since they've changed into a broader protest against emmanuel macron and his presidency. a march is kicking off in one district, but patience by police and beijing supporters is wearing thin. police warn the violence we've seen in past weeks may be spinning out of control. and they may be forced to use live ammunition. paula, what are you seeing there? >> naturally, it's a regular saturday arch here in hong kong. the stand off is in full flow at this point. we've seen ryan police trying to disperse the crowd. this was originally a legal rally. there was a march going from one area to another area. there is an element here that wants to have a confrontation with the police. as you say, it was interesting what we heard on friday, there was a background briefing for foreign media which cnn was part of. and the police commissioner was talking about concerns that this violence could be spiraling out of control, concerns that police may have to start using live ammunition at some point which is something they don't want to do, but we have still those comments from the protesters saying they believe the police are using too much violence and excessive force when it comes to dealing with them. >> what is the reaction from protesters when they hear police warn of using live ammunition? >> certainly they're not going to be happy about that. they have an amazing ability to disappear and melt into the crowd, these protesters. many of those that live in this area, they've been yelling at the crowd taunting them. but for the motor part within there hasn't been a public outcry. they're not coming outs publicly and saying it shouldn't be happening. across the board, they are pushing for more democrats, they're pushing for the same goal. so, of course, you have many different protesters. some coming with families and on the other end of the spec truck, you do see the protesters. >> and they're still united, but what about the machines, are they still getting the numbers out on the street? >> the numbers certainly appear to be down. at the beginning, you had more than a million on the streets. this particular protest, the rally and then the march, was let. it was approved by police. we did see thousands walking and chanting. you don't see the same amount of numbers, but by that token, the fax is these protests are becoming more violence. we have seen a fair cross section today. it's not just young people or old people. this is the 16th consecutive weekend that these pro democracy protests have been going on. inevitably, you are not going to get those big numbers every weekend. >> paula hancocks right there for us. we appreciate it. thank you. north korea is celebrating the fact that the u.s. president fired his national security adviser and president trump isn't hiding business pleasure, either. but some analysts say it is all a sign president trump may be trying to get cozy with kim jong-un. our brian todd with that story. >> north korea's ruthless supreme leaders appear to be celebrating the firing of john bolton as president trump's national security adviser. in a new statement, one of kim jong-un's top diplomates say it's a good thing the nasty troub troublemaker has disappeared. kim may be taking a page from the president's playbook. trump himself has danced on bolton's grave in recent days. >> the relationship is good, so i think that's better than somebody that goes around saying we want to use the libyan model. he said the libyan model. that set us back very badly when he said that. >> trump has repeatedly criticized bolton for saying the so-called libyan model could work with north korea. cnn reached out to a representative for john bolton for comment on what trump and the north koreans are saying. she didn't get back to us. analysts say trump could be trying to curry favor with kim by piling on bolton. >> i think president trump is much too indulgent with kim jong-un. obviously north korea feels they somehow got rid of the national security adviser. >> on thursday, the excentric former nba star dennis rodman, one of the few people on earth to know both kim and trump made a bold prediction. >> kim jong-un will be in america in 18 to 24 months, i guarantee you. >> really? >> i guarantee you. >> as head of state or is he going to defect? >> no, he's coming to do one thing, to visit america. >> this comes as new research has found several hidden tunnel entrances near the main north korean nuclear complex. >> close to this are first the plant where they produced highly encrisped ur rainus and there is another plant where they produce uranium. >> like going back in a time machine, think tank 38 north about the stone's reactors. >> it was completely camouflaged with vegetation sometimes over the last years. >> it could she dlib ral or just a growth of vej tage. if and when north korea let's inspectors into the area, it will involve dodging. they say that's why the u.s. first needs a full declaration of north korea of all the facilities and weapons that they have. brian todd, cnn, washington. one of the women who says she was sexually assaulted by britain's prince andrew is revealing new details of her story. the allegations come after the death of jeffrey epstein, the high profile millionaire who was facing sex trafficking charges when he was found dead in his jail cell. virginia roberts had accused epstein of keeping her as a sex slave. now she says an associate of epstein forced her to have sex with prince andrew after a night of partying . >> prince andrew got me alcohol. it was in the vip section. i'm pretty sure it was vodka. prince andrew was like, let's dance together. i was like, okay. and we leave club tramp. i hop in the car with guillen and jeffrey. she said he's coming back to the on husband and i want you to do for him what you do for epstein. i couldn't believe it. >> buckingham palace responded this way writing it is emphatically denied that the duke of york had any form of sexual contact or relationship with her. any claim to the contrary is false and without foundation. u.s. football player antonio brown has played his first and last game with the new england patriots. the team cut ties with the wide receiver after he was accused of rape and sexual misconduct. he has not been charged and he denies the allegation. the head coach refused to answer questions about brown. >> i'm not going to have any comment on any of the off the field situations or questions on that. so i'm not going to get into that. i think i've already addressed there, so we're going to get red for the jets here, happy to answer any football questions, but the rest of it, i'm done with the rest of it. so, yeah, that's -- yeah, i'm good, okay? thank you. >> brown's former trainer says he raped her in 2018 and an artist who worked at his home says he stood naked behind her on her second day of work. millions planned to storm area 51. just ahead, the so-called raid that didn't live up to the hype. with more engineers. more towers. more coverage! it's a network that gives you ♪freedom from big cities, to small towns, we're with you. because life can take you almost anywhere, t-mobile is with you. no signal goes farther or is more reliable in keeping you connected. at least four people were killed when a bus carrying chinese tourists crashed in the u.s. state of utah. some of the 15 injured were left in critical condition when this bus ran off the road and rolled into a guardrail. 30 people were on the bus. a 22-year-old man is in custody for driving a car through a shopping mall in illinois. a witness took this video of the suv driving erratically through the building. police say the driver took the car fairley deep into the mall, but thankfully, no one was hit by the car. he was stopped by shoppers who held him until police arrived. investigators say it was not terrorism. they're looking at whether a medical issue could have something to do with it. despite months of online hype, a proposed raise on area 51 fizzled out fast. the medical fall is rumored to store secrets about space aliens, but there was no mass attempt to breach the barriers. about 3,000 people did show up. >> picture the kind of people you think would come to an event like this. you're right. they're all here. dancing by night, chilling by day. >> aluminum foil hats and conspiracy theories. >> i think there's something in there. >> they might have some parts or whatever from -- who knows, a collision, i don't know what. but if there's aliens, they're children of god. how do you like that one? so set them free. >> are you like an area 51 conspiracy theorists or are you just a good time guy? >> i'm just a good time guy. >> two local counties declared states of emergency preparing for a base invasion and making sure this didn't turn into a vest fall 2.0. it's cold at night for those campers. >> my old bones, i was dieing. oh, my god. >> visitors here from manitoba and missouri and maybe the jan. who am i to say? >> everybody was hyped. everybody was ready. i think they were expecting a little more violence, if i'm going to be honest. >> remember the original idea was to storm area 51 to see what was in there. they dialed back on that. a few arrests, one for indecent exposure, nothing too dire. the air force has warned it's very dangerous to trespass. mary ramirez is drinking wine. it's just lunchtime. >> yeah. i mean, even you think storming the base is a bad idea. >> i do. >> so maybe the atenant wasn't quite what they hoped for, but this was organized very last minute. the two main organizers also fell out. so there was a competing event in legislation. so if people have a good time, who knows, maybe it will become an annual event. >> got to love the folks gathered there and the mystery c continues about area 51. rugby has come to japan. new zealand wants to win their third straight world cup. can they do it? 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>> yeah. the sun has gone down here let less than an hour's drive. but the stage is set for a blockbuster game. it's not win or bust for south africa in the stadium behind minimum. later, whoever looses will have a chance in the other three group games to reach the quarterfinals. it's straight knock out from them. but this will lay down a huge marker between two teams that many experts could well meet again in the final. if they do finish second and third, they will go in separate draws if they get that far. they're ranked second in the world and fourth, but many think they're the two leading title contenders. the mighty all blacks, having won the last two rugby world cups going for three in a row, but suddenly showing signs of vulnerabilities in the last 12 to 18 months, especially in a one off the game and they lost out to the spring box when it came to the rugby championship. so that resurgend under the spring box coast and they're coming in here with real momentum. so it's an absolute thriller. but the host japan won on friday night. earlier, australia managed to avoid an upset against fiji who were up 21-12 up early in the second half. and going on right now is the game between france and argentina in the tokyo stadium where argentina came back to take the lead. french have now edged two points ahead. it's really come to life on only day two of 44 here in japan, natalie. >> they're in for some good rugby there. very exciting for japan that they're hosting this. thank you so much. >> and thank you for watching this hour of news room. i'm natalie allen. i'll be back for another hour right after this. tremfya® helps adults with moderate to severe plaque psoriasis get clearer. and tremfya® was proven superior to humira® in providing significantly clearer skin. don't use if you're allergic to tremfya®. tremfya® may lower your ability to fight infections and may increase your risk of infections. before treatment, your doctor should check you for infections and tb. tell your doctor if you have an infection or symptoms or if you had a vaccine or plan to. serious allergic reactions may occur. tremfya®. get clearer. janssen can help you explore cost support options. janssen can help you explore here, hello! starts with -hi!mple... how can i help? 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[ camera clicking ] wifi up there? -ahhh. sure, why not? how'd he get out?! a camera might figure it out. that was easy! glad i could help. at xfinity, we're here to make life simple. easy. awesome. so come ask, shop, discover at your xfinity store today. >> feeling a little nervous? boots on the ground. the pentagon has announced it is sending more troops to saudi arabia following the attack on the country's oil reserves. we'll take you live to the region about that one. also here, whistleblower fallout. donald trump pressed a foreign government to investigate joe biden's son not once, not twice, but eight times. also, tv's biggest night. the emmys just around the corner. we take a look at the favorites, snubs, and wild cards. welcome to our viewers here in tu statsz and all around the world. i'm natalie allen coming to you from atlanta, and this is "cnn newsroom." we're following two major stories right now. we're learning more details about that