>> right now on america this morning, biden drops out the historic decision. what we're learning about the timeline overnight, a growing list of endorsements for vice president kamala harris to become the party's nominee. >> but word this morning, she may already have a challenger in the race. with just four weeks

before the party's convention, our analysts and experts on what comes next right now, on a special edition of america this morning from abc news, this is america this morning. >> good monday morning, everyone. i'm andrew dymburt. >> good morning to you i'm rhiannon ally. we begin with that earthquake in american politics. president biden announcing he will not seek reelection four weeks from today. >> the democratic convention begins in chicago. and the question is, who will be the party's nominee? president biden has endorsed his vice president, kamala harris, and she says she will seek the nomination. but we learned overnight at least one other democrat may jump into the race. party officials have insisted this will be a process, not a coronation for harris. >> but overnight, harris won support from several top democrats, among them several governors, being discussed as potential running mates, including the governors of pennsylvania, north carolina and kentucky all backing her. we have several reports this morning. abc's em, nguyen begins our coverage for us. em. good morning rhiannon.

>> good morning. vice president harris could soon face her first challenger for the democratic nomination, even as democrats appear to coalesce around her overnight. this morning, sources tell abc news that joe manchin, the independent senator from west virginia, is considering reregistering as a democrat in order to compete for the party's presidential nomination. former democratic national committee chairwoman donna brazile says manchin already reached out to her about the nomination process. >> he wanted to inquire about the process. i had to remind them that in order to put his name in nomination, he has to sign a form that he's a democrat. he left the party a couple of months ago. >> manchin is often at odds with democratic leadership, switching his registration to independent back in may and before biden's announcement yesterday, manchin called on the president to drop out. >> he will go down with a legac, unlike many people, as one of the finest and truly a patriot american. so with that, i come

with a heavy heart to think the time has come for him to pass the torch to a new generation. >> what a difference 12 hours make, i ask him directly if he thought joe biden should step aside. he said, i think a new generation. it's time for a new generation to try to heal the party and heal the country. joe manchin will be 77 years old next month, so i don't know what he's talking about. a new generation sources say biden came to his decision this weekend while recovering from covid. >> biden then endorsing vice president harris as the nominee. but harris does not automatically move to the top of the ticket. dnc chairman jaime harrison saying in short order, the american people will hear from the democratic party on next steps and the path forward for the nomination process. >> she's ready to step up, bring our party together, go toe to toe with donald trump and win in november. >> leading democrats are lining

up to voice their support for harris, including california governor gavin newsom, pennsylvania governor josh shapiro and ohio senator sherrod brown also supporting harris. at least eight members of the so-called squad, including alexandria ocasio-cortez and ilhan omar, former president obama and former speaker nancy pelosi, praised biden for deciding to step aside, but they stopped short of endorsing harris. >> i think that's what you're seeing with both pelosi and obama. look, the two most prominent elder statesmen in the party saying they want the process to play out. i think everybody expects, unless something really unexpected happens, this is kamala harris. >> recent polls show a neck and neck race between harris and former president trump, another poll shows trump's favorability five points higher than harris's democrats reported a record amount of online donations in the hours after biden's announcement yesterday. nearly $50 million. but one major biden donor says if harris becomes the

nominee, he won't fundraise for the democratic ticket, high profile lawyer john morgan telling abc news it's one thing to vote for somebody, it's another thing to raise millions of dollars for somebody. you have to really be in. president biden says he'll address the nation later this week, providing more details about his decision to drop out of this race. rhiannon, andrew and win in washington. >> thank you for that. we are expecting to hear from vice president harris later today. this is a previously scheduled white house event. >> abc's alison kosik looks at harris's role in the biden administration and what comes next for her. >> after serving as california's first female attorney general and making headlines for enacting criminal justice reform, kamala harris went on to the senate. but it was this moment in 2019 taking on joe biden at the presidential debate when harris stepped into the national spotlight. >> there was a little girl in california who was part of the

second class to integrate her public schools, and she was bussed to school every day. and that little girl was me. >> years after that moment, blasting biden for opposing federally ordered bussing in the 1970s, biden is now looking to pass the torch to harris, endorsing her to become the party's nominee. >> this moment is sort of built for someone like her running against a convicted criminal, a former prosecutor, supporters pointing to this moment at the 2020 vice presidential debate. >> mr. vice president, i'm speaking. >> but to become the presidential nominee in 2024, harris needs to win over delegates for next month's convention. >> democratic delegates to the democratic convention. they are the decision maker. all of them are now free under democratic party rules to vote their conscience and that means that vice president harris or anyone else is going to have to earn a simple majority. 1895 delegates to get the nomination.

>> she's been hitting the campaign trail hard. she's been raising money. she raised over $2 million yesterday in massachusetts. so i'm confident that she will have the delegates. she will have the resources. >> harris has been a vocal defender of abortion rights on israel. she's called for an immediate ceasefire in gaza, saying too many innocent palestinians have been killed, which could help her fare better among arab american voters than president biden. but harris has faced sharp criticism for her role in handling the border crisis. she was put in charge of efforts to address the root causes of migration, and was appointed to coordinate talks with el salvador, guatemala and honduras. but she took heat even from members of her own party. when she said this during talks in guatemala, the folks in this region who are thinking about making that dangerous trek to the united states-mexico border do not come, do not

overnight. social media embracing several memes about harris, some tracing back to this moment with drew barrymore. >> i've been thinking that we really all need a tremendous hug in the world right now, but in our country, we need you to be mamala of the country >> other memes trace back to this reference to a coconut tree, an anecdote from her mother. >> you think you just fell out of a coconut tree? you exist in the context of all in which you live and what came before you. >> as for her push to win over delegates and avoid an open convention, a dnc roll call is expected early next month. the dnc rules committee says it will meet this wednesday to discuss next steps in selecting a new nominee. andrew rhiannon. >> alison, thank you for that. israeli prime minister benjamin

netanyahu arrives in washington today. >> netanyahu is still expected to meet with president biden this week. other foreign leaders reacted to biden's decision yesterday by expressing respect or admiration. the announcement is dominating global headlines. morning programs from australia to japan featured news of biden's surprise decision. >> let's turn now to former president trump and the republicans reacting to biden dropping out. it didn't take long for the gop to pivot. this morning, former president trump and running mate jd vance are comparing the pressure that prompted president biden to exit the race to a coup. >> is it a coup against joe biden, >> it sort of. yeah i think it is. >> vance even calling for democrats to remove biden from office if joe biden can't run for president, he can't serve as president. >> and if they want to take him down because he's mentally incapable of serving, invoke the 25th amendment. >> similar sentiments echoed by other republicans. house speaker mike johnson saying biden must

resign the office immediately. republicans now turning their attention to vice president harris. >> if you ever wondered how joe biden could get the border so screwed up, remember he had hel. >> an attack ad made by a pro-trump group is already airing in key battleground states. the video, produced days before president biden's announcement. >> they did have an ad ready to go. the super pac and the rnc very quickly. within about two hours, had an ad out there attacking the vice president. >> republicans forced to pivot to attack harris, focusing on her role in immigration policy and claiming she's known about the president's mental acuity. former new jersey governor chris christie, who took on trump twice himself, says the dynamics of this race will be entirely different if vice president harris tops the ticket. >> it's very different to be the person running for president than the person running for number two. and so she's going

to be under a different level of scrutiny. a different level of pressure, and there's a different expectation. level. >> one footnote donald trump, before he ran for president, donated to kamala harris, attorney general campaign in california back in 2014. >> we have more coverage of this pivotal moment in us history coming up in just a few moments, including a historical perspective. what we can learn from previous presidents who chose not to seek reelection. but first, when we come back more scorching heat and another major fire in the west burning homes. >> also ahead, the new investigation announced overnight into the attempted assassination of former president trump, plus the fallout from friday's massive in

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morning america. with all the breaking new details. >> we're back now with two wildfires that have forced evacuations in southern california's riverside county.

one fire has destroyed at least three homes and damaged several others. meanwhile, in salt lake city, utah, evacuation orders were lifted overnight after crews made progress against a fire that has burned a few hundred acres. it comes as the region faces more dangerous heat warnings are posted across the west, where overnight lows in some areas remained in the triple digits. meanwhile, most of the south will see rain and storms this week. some areas could see more than five inches. >> well, today, the head of the secret service is expected to admit to congress that her agency failed to protect former president trump director kim cheatle plans to take full responsibility for any security lapses related to the assassination attempt. she is facing calls to resign as lawmakers demand to know how the shooter managed to get a clear shot of trump because people saw that he was on the roof. >> i mean, you had, trumpers screaming the woman in the red in the red shirt. she was screaming, there's a man on the

roof. and then other people said, there's a man on the roof who's got a gun and that was quite a bit before i walked onto the stage. so you would have thought somebody would have done something about it. >> meanwhile, the homeland security department has announced that a bipartisan group has been selected to conduct an independent review of the shooting. >> air travelers are still feeling the effects from friday's global internet outage, blamed on crowdstrike. delta continues to take the biggest hit from the it mess. 3700 flights were canceled over the weekend and about 400 have been canceled this morning, transportation secretary pete buttigieg says he reminded delta ceo that the airline will be expected to issue prompt refunds and reimbursements coming up, a southwest airlines flight dips to a dangerously low altitude again, but first, president biden's bombshell announcement some historical perspective on some historical perspective on this rare moment ♪ hey! i'll give you $574 if you switch.

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biden announcing he is ending his campaign. that decision is unprecedented in many ways. >> biden is not the first president to be pressured out of running, but he is the first to step aside after winning most of his party's delegates with his announcement. joe biden joins a rare group of sitting presidents who chose not to seek reelection. >> i shall not seek, and i will not accept the nomination of my party for another term as your president, 56 years ago, president lyndon johnson announced he would not run for a second term amid the increasingly unpopular war in vietnam and growing national unrest. >> political violence. that year, we saw the assassinations of martin luther king and bobby kennedy. we've seen, of course, this year the assassination attempt on president trump's life. we saw divisions and discord and volatility in 1968. we're seeing that again this year. >> in 1952, despite leading the country through the end of world war two, harry truman also opted

not to seek reelection, entering the korean war among other unpopular decisions, left truman facing the lowest job approval rating on record, just 22. >> i have served my country long, and i think efficiently and honestly, i shall not accept a renomination. i do not feel that it is my duty to spend another four years in the white house. >> presidents teddy roosevelt and calvin coolidge also decided not to run for another term. but biden's decision stands apart from those of his predecessors, all of whom served more than four years in office. >> all of those presidents theodore roosevelt, calvin coolidge, harry truman, lyndon johnson all took the presidency upon the death of an incumbent, became president in their own right by getting elected to the office, and then declined another term in office. so this is a little different insofar as joe biden did, you know, was the candidate in 2020, became president and has opted after one term not to go forward.

>> but now democrats are hoping to avoid history repeating because in the most recent two examples, when johnson and truman both democrats, stepped aside, a republican won the next election, eisenhower following truman and nixon following johnson. this will be the first election since 1976 that will not include a bush, clinton or biden on the ticket. >> coming up, another frightening incident involving a southwest airlines plane also southwest airlines plane also ahead, taylor swift dethroned inez, let me ask you, you're using head and shoulders, right? only when i see flakes. then i switch back to my regular shampoo. you should use it every wash, otherwise the flakes will come back. tiny troy: he's right, you know. is that tiny troy? the ingredients in head and shoulders keep the microbes that cause flakes at bay. microbes, really? they're always on your scalp... little rascals... but good news, there's no itchiness, dryness or flakes down here! i love tiny troy. and his tiny gorgeous hair. he's the best. - make every wash count! - little help please. why is special k so special?

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lauderdale. this is the third altitude related issue for a southwest flight just since april, experts say the plane in the most recent incident should have been flying at around 1200ft. >> it probably points to some sort of distraction in the cockpit. however, the pilot flying was lost situational awareness and didn't realize the descent rate and how close they came to the water. >> after diverting to fort lauderdale, the plane was safely flown back to tampa and a man is under arrest after a brutal knife attack at miami's airport. he is accused of stabbing a woman and trying to throw her over a railing, leaving her in critical condition. police say that attack was unprovoked in sports. >> another eye opening moment for shohei ohtani, the dodgers star drove a pitch out of dodger stadium, his 30th home run of the season. it traveled 473ft. la also won 9 to 6. in golf. xander schauffele hit four birdies down the stretch to win the british open by two strokes.

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