heat wave is smothering a us humidity, driving the heat index into the triple digits. >> and this could be just the beginning of a brutally hot summer for americans and a new study suggesting the looming threat of an earthquake and tsunami. and the northwestern us of a size rarely seen on this planet and science contests are warning no one is ready. >> okay, we're following these major developing stories and many more all coming in right here to cnn news central right now, speaker mike johnson is meeting with former president trump at mar-a-lago. >> the two liters said to be working out their game plans as trump tries to win back the white house and republicans tried to keep control of the house of representatives this is happening just days after trump held strategy talks with republicans in washington, the former president's first trip to capitol hill since the january 6 attack, we've seen it and selena train with us now to be a fly on the wall in this meeting, collina exactly luck. >> i mean, it does come just days after donald trump was in dc meeting with house and senate republicans and the big goal for that was unity. and so today i'm told the big goal is we need to stay on message and we need to get the right candidates elected. now, remember, speaker johnson has a very slim majority in the house and it's proven difficult. it's been very hard for him to get some notches, key priorities passed in the house, but also the general standard type of procedure packages as well. and so this goal benefit to this meeting, i should say, benefits both donald trump, but also how speaker mike johnson and richard hudson, the chairman of the national republican congressional committee, and look donald trump in the past has in his endorsements have carried a lot of weight. we know that many of the people he's endorsed have gone on to win their primaries. however in 2022, many of those people, even though they won their primaries, ultimately lost when it counted on election day. and donald trump since then has really had fewer endorsements from my conversations with trump's team, they argue that they really do not i want to be putting their weight behind people that they don't think it can win. so what i was told this meeting is about is really trying to get on the same page about who to endorse him as well what the messaging should look like. ours they look ahead to november now the other part of this that i find really interesting is donald trump and mike johnson have grown a relationship over the past few months as he become speaker. and recently after donald trump's indict are not unindicted excuse me, his guilty verdict in his manhattan trial and 34 counts of falsifying business records. trump called mike johnson and complain to him about how he wants republic blinken's in congress to be doing more to wage war on democrats. and in order to do that, he needs more republicans in his majority. and so that's part of all of this as well. >> all right. we'll have to see what comes out of this, but it's a fascinating time, alaina, thank you for the report for us. >> ten days before the first biden trump debate, right here on cnn, the biden campaign is going after trump for the first time one of their ads is calling the former president a convicted criminal, listing is 34 felony counts and other court defeats all to try and make a contrast that the biden campaign is hoping we'll win over voters. here's one part of that, 30 clip this election is between a convicted criminal who's only out for himself at a president who's fighting for your family let's take you to the white house now with cnn senior white house reporter kevin lib tax. so kevin 50 million spent on airing this ad where exactly is it going to be seen? >> yeah, it's in all of the battleground states according to the biden campaign. and you know, i think the timing is very intentional ten days before this cnn debate as the biden campaign really works to build up that contrast with former president trump. you really can't imagine a sharper way of making that contrast than in an ad like this. you know, really going aggressively against the former president's legal issues, showing his mug shot not really kind of ticking through the felony counts, the accusations of sexual assault, the accusations of fraud, really trying to frame this as a choice for voters at the end of the de, the biden campaign really views this summer as the best chance for them to put that choice in front of voters into their living rooms through these tellers provision ads for so long, there had been this debate among democrats about how aggressively to go after president trump's legal issues. president and biden had seemed at points reticent to talk about them. certainly as the trial was unfolding, very wary of stepping over that line of ethics. this ad i think answers some of those questions the campaign very much leaning into this effort to brand president trump a felon, to brand him a criminal. this is backed up by $50 million. that's part of this larger battleground state add by really putting to use that cash advantage that the biden campaign has been enjoying. for so long. president biden really trying to increase that advantage over the weekend at the fundraiser in los angeles with president obama, with george clooney the biden campaign says that raised $30 million. that's a record for any democratic candidate ever. so really giving you a sense of how much a time and effort they're putting in and to the campaign war chest. all with the effort of trying to put biden and trump that contrast that choice in front of voters. now, the trump campaign in did respond to this ad. they said that the contrast between president trump strength and success versus crooked joe biden's weakness, failures, and dishonesty will be made clear on the debate stage next week but certainly, i think what you're seeing here is the biden campaign making very clear that at the debate on the airwaves, and certainly in the months for the election, they're going to make very clear where president trump's legal status stamps boris low tack life for us from the whitehouse brown let's talk more now with cnn senior data reporter harry enten. >> all right, harry, what does the number show when it comes to trump's support? with black voters yeah, this is a block that donald trump is going after. >> and if you look at where the poles stan now versus four years ago, you just see a significant change. all right, so go back to 2020 among black voters had pulls at this point, joe biden had 86% of the vote. donald trump had 7% of the vote look at where we stand now. yes. joe biden, still ahead here by a significant margin but trump has closed the margin also significantly his support, 7% four years ago at this point, look at that. he's troubled at each triple that up to 21%. now joe biden from 86% to 70%. another way to look at that is the margin. it was 79 points at this 0.4 years ago, right now, it's at 49 points, a shrinking of the margin of 30 percentage points. that is a tremendous shift. briana that sure is. all right. what is the makeup of voters who might consider flipping from biden to trump? >> all right so. you know, i love digging into the cross tab, so we have the top line here among black voters. but let's dig a little bit deeper. and this really just gives you an indication of where this black support from dot for donald trump is coming from. all right. if you look at black voters at the age of 50 or older, this is the margin bar in verses trump four years ago at this point, biden was up by 83 points all right. that's shrunk a little bit, a little bit. >> it's down to 74 points now, but nothing massive, nothing major here. >> this is nine points. but look among black voters under the age of 50, bianna, oh my goodness, gracious. it was at points at this 0.4 years ago, look of where that margin is now et just 37 points. that is a shrinking of the margin of more than half i said earlier on on our air that i was speechless. i still am speechless because you go years and years and years looking at numbers, looking for when there was a significant shift, when something truly changed in the electric, if this polling is anywhere close to being right? this is one of those historic moments where something we've never seen happen before, at least in our lifetimes, is happening. black voters under the age of 50 are leaving joe biden, the democratic party. and while he's still leads, that lead is significantly, significantly smaller than it was just four years ago. >> what happens here when you put a third-party candidate in the mix yeah. >> all right. so let's put a third party candidate in the mix and robert f. kennedy jr. all right. this isn't a battleground states, arizona, georgia, michigan, nevada, pennsylvania, wisconsin. i got all six of those is out pretty quickly. binds up 63% to 23%. so somewhat similar to what we're seeing now nationally, take a look though what happens when you add rfk junior and he gets 11% of the vote trump drops, but just by nine points, look at this. biden dropped by 14 points em more than that lock. >> here he, just gets 49% of the vote, less than a majority of the vote for a democratic candidate among black voters, truth is briana. i've never seen anything quite like it yeah it's really stunning to look at the poles we'll have to see how this plays out. i know you're waiting for that. harry. thank you so much. we appreciate it. thank you. still become a heat wave, not seen in decades, is sending temperatures well into the 90s and higher for more than half the us pirate relation plus this our president biden, is hosting nato secretary general at the white house, at the forefront, natalist role in ukraine. >> and later how students at middle school in houston have to dodge trains just to get to school. we have those stories and much more coming up on cnn news central debate in america, as biden and trump meet and only cnn has complete coverage with unrivaled access and exclusive ria post a bag analysis follows cnn for every countless moment, followed debate night in america begins june 27 at seven trains painted sense, what isn't on this? 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yes. so certainly he risked a heat waves extreme heat is sometimes called the silent killer because it may not be as dramatic as some of the other extreme weather events, tornadoes and hurricanes and wildfires that lead to human mortality. but in fact, extreme heat leads to far greater mortality, especially among the young and the older. and in particular, when nighttime temperatures stay very high and the body the human body isn't able to cool down at night and recover from that heat. that is particularly a problem. that's one of the things we're seeing with this heat wave. not only very high, high temperatures, but we're we're going to see very high, low temperatures. >> so the heat waves are colliding of course, with hurricane season and then when you look out west and earlier than usual, fire season what does this tell us about the bigger picture when it comes to climate change yeah, we're seeing record flooding down in florida. >> we are seeing early wildfires out west and california. we are seeing extreme heat in the midwest and the eastern united states it's an all of this is actually connected to a very persistent jet stream pattern when the jet stream sort of gets stuck in place in those big, high and low pressure centers get stuck in place. you have extreme rainfall and flooding or extreme heat and drought and wildfires day after day. and that's what we're seeing in here's a very important zero point. the fact that we're going to see more extreme heat on a warmer planet that's obvious, that's an obvious impact of human-caused warming. but one of the subtle impacts that we're just beginning to really understand is how the actual pattern of the way the planet is warming up is changing the behavior of the jet stream and leading to these very persistent extreme configurations that give us these, these unprecedented extreme weather events and the climate models that we use to predict the future appeared actually underestimate the impact that climate change is having and creating these very persistent jet stream patterns these extreme weather events. and so if anything, our models are actually underestimating some of the key impacts as i like to say, uncertainty isn't our friend here. >> that is so alarming. i do think that people are hearing the alarms specifically in some places where they can't get insurance, right? whether it's for flooding or it's for the threat of wildfires. there are people who are really experiencing this in a very real way. michael. so what do they need to be doing? what do we all need to be doing? going to try to reverse course here yeah, you're right. >> i mean, uninsured ability as i like to say, is the first step to uninhabited ability, right? if we can't ensure our homes against extreme wildfires and floods, then pretty soon we're losing vast amounts of area where human beings can live on a planet with a growing population patient, and growing demand on space, on food, on water. what can we do to make this to prevent this from getting worse? and again, that's the good news. one of the things that we've come to understand over the last decade and a half is that the warming of the surface of the planet halts fairly quickly when we bring our carbon emissions to zero. and so there's a very direct and immediate impact of our effort to decarbonize our economy. now here's the thing we've got to bring carbon emissions down by about 50% over the next decade and down to zero within a couple couple of decades. if we're going to prevent the warming, the planet from warming beyond roughly three degrees fahrenheit, where we'll see far worse consequences of climate change. and so, as i like to say, there is urgency, but there is agency. it's not too late for us to act yeah. >> we just have to hear those alarms and they are going off very loudly. michael mann, always great to have you. thank you so much thank you. boris we want to zero in on one of those fires burning out west, hundreds of people in southern california are forced to evacuate because of a raging wildfires, just about an hour north of los angeles. >> dry brush and fierce gusty winds are fueling the post fire that erupted saturday in the city of gorman it scorch more than 15,000 acres and right now, it's only about 8% contained. >> cnn national correspondent camila, but now is watching the fire-fighting efforts and give me love this morning, you felt some of those 70 mile an hour winds that are fueling the post it's fire. >> how we're conditions where you are right now well, look at least i can sand. >> it was hard to sand. i couldn't even see earlier in the day, but now i can actually be here, but you're still seeing a lot of the wind and look, it's not about me, it's about those guys and women back there because these firefighters had been here 24/7 evan a