that new storm targeting millions in the northeast. widespread flooding possible. flood watches already up at this hour. there are also tornado concerns tonight. this is set to move into new york city and the northeast. rob marciano timing it out. tonight, president biden now campaigning in the battlegrounds. first stop, his home state of pennsylvania. tonight, his answer about debating donald trump. and vice president harris asked about the intense focus on her because of the president's age and what she said to that. mary bruce with the interview tonight. overseas tonight, the humanitarian crisis and a new tragedy in gaza. the hamas-run health ministry saying five children were crushed to death. they say an aid box falling on the children. the parachute failing to open. tonight, the pentagon aware of the reports but says it was not u.s.-delivered aid. tom soufi burridge in the region. just before the deadline, former president trump posting a $91 million bond as he appeals the defamation verdict in the e. jean carroll case amid questions tonight about the money he still needs to put up, still owing hundreds of million in his other civil case. rachel scott reporting. dramatic testimony tonight in the trial of the father of the michigan school shooter, ethan crumbley. the gun store manager describing the father, james crumbley, purchasing the gun and what the father promised on a form. that gun then used by his son to kill four students. news just in tonight. the horrific crash. reports of at least nine dead. a tractor-trailer and a van on a state highway. tonight, the new pentagon report in. what officials are now saying about decades of claims about ufos, including whether the u.s. had alien technology. and there are reports coming in at this hour, a helicopter down on the southern border tonight. what we're learning as we come on the air. >> david: good evening. it is great to have you with us. there are reports of that helicopter crash on the southern border. what we're learning in just a moment. the president in the battlegrounds following the state of the union address. will he debate donald trump? we are going to begin with the frightening moments on a united flight skidding off the taxiway while landing in houston in the rain. the third alarming incident involving a united boeing aircraft this week alone. the boeing 737 landing then sliding off the taxiway, far from the terminal. the plane tilted backward. the engine and part of the wing resting right on the grass. the emergency evacuation. 160 passengers, six crew members exiting down the stairway. emergency vehicles you can see standing by. abc's mola lenghi leading us off tonight. >> reporter: tonight, the faa and ntsb investigating yet another incident after a united plane skidded off the taxiway in houston. >> united 2477, i see you in the grass, rolling the trucks en route. >> reporter: the boeing 737 max 8 traveling from memphis carrying 166 passengers and crew, landing this morning at george bush international airport. but as it exited the taxiway, the plane rolled into the grass. >> just seemed like the plane was going a little too fast and just slid off. >> the engine sitting down on the ground, buddy! >> reporter: the passengers exiting onto the airfield, no one injured. >> please exit the aircraft slowly, carefully, one row at a time. >> reporter: miami allard filming this video. you can see the plane's nose wheel suspended off the ground. >> wow, look at that, look at that wing! >> it was more scary when you slid off and you realize the whole plane is tilted and we're in the dirt over on that one wing. >> reporter: united stating passengers were bused to the terminal, adding, "we are thankful for the actions of our crew to deplane all passengers safely." but when you look at that video of a united plane losing a tire just yesterday. and this engine fire caused by bubble wrap sucked inside. there are questions about plane safety. >> there's no reason for the flying public to have any additional concern. if a tire falls off that's either material failure or a maintenance problem, if bubble wraps gets sucked in the engine in an airplane then that's the airport's fault. no real tie between these three incidents of united. >> reporter: boeing saying they're providing support to united and to the investigators on the ground in houston. david? >> david: mola lenghi leading us off here on a friday flight, thank you. we're following this new storm targeting millions in the northeast. the third storm to hit the east coast this week. there are also tornado concerns in the south from this same system at this hour. torrential rain and a flash flood threat across the gulf today and up to the carolinas tomorrow morning. by midday tomorrow, drenching rains in washington, d.c., philadelphia, new york city. heavy snow possible further inland and in parts of new england. time-lapse video, lightning near fort worth, texas, as the storm passed through. flooded streets in southeast kansas. some drivers trapped in it all. senior meteorologist rob marciano timing it on the for it tonight. >> two big headlines, flooding and severe, and the south getting them both tonight. tornado watch including new orleans, and a big flood watch louisiana through the carolinas between i-10 and i-20. that's where the heaviest rain is going to be. places like atlanta, you've seen a lot. a severe threat tomorrow across south georgia and south carolina in the morning, then the northern part of this thing takes shape. look how much rain is coming to the northeast over pennsylvania, d.c., philly, new york. then sliding up into the northeast and the higher elevations in new england will see some significant snow. especially on the back side of this. clearing out eventually sunday afternoon. 2, 3 inches of rain possible. it's been a wet week in the east. it's not going to take much to flood over the next 48 hours. >> david: rob marciano with us. to the race for president, the biden/trump rematch fully under way. fresh off his state of the union address last night, president biden today on the campaign trail. heading to his home state first. the must-win battleground of pennsylvania. tonight his answer when asked today, will he debate donald trump? and vice president harris tonight asked about so much attention on her, given the president's age and what she said to that. abc's mary bruce tonight with the interview. >> mr. speaker, the president of the united states! >> reporter: tonight, fueled by what his campaign considers a home run state of the union, president biden heading for bag ground pennsylvania, a must-win home state. >> did y'all see joe last night? wasn't he on fire? >> reporter: biden's team confident the 81-year-old showed he has the energy and vigor to fight for a second term. >> our freedoms really are on the ballot this november. donald trump and the maga republicans are trying to take away our freedoms. that's not an man race. well, guess what? we will not let him. we will not let him. >> reporter: in his speech, the president calling out donald trump for pressuring republicans to kill a bipartisan border deal because trump wants to run on immigration and didn't want biden to have the political win. >> the toughest set of border security reforms we have ever seen. [ audience moaning and shouting ] oh, you don't think so? oh, you don't like that bill, huh? that conservatives got together and said was a good bill? i'll be darned, that's amazing. >> reporter: biden urging republicans to work with him. >> look, folks, we have a simple choice. we can fight about fixing the border, or we can fix it. i'm ready to fix it! send me the border bill now! >> reporter: the president also sounding a campaign rallying cry on abortion, directly addressing the supreme court justices seated right in front of him. >> look, in its decision to overturn roe v. wade the supreme court majority wrote the following, and with all due respect, justices, women are not without electoral power. excuse me, electoral or political power. you're about to realize just how much you were right about that. >> reporter: biden thanking his vice president, kamala harris, for leading that charge. today harris hitting the campaign trail too, heading to battleground arizona. earlier i spoke with her and asked about republicans being so focused on her. we've seen this argument over and over again from republicans that the candidate they are really running against is you, that given the president's age, there is a chance that you may have to take over for him. what do you say to voters who are sold on the president but may not be sold on you about this potential possibility? >> well, first of all, i think what we saw in president joe biden is somebody who's prepared to take on a second term and do it with passion and do it with vigor. if necessary, which will not be the case, i am ready. but the bottom line is, our president is full of vigor and passion and perspective to take on another term. and i'm standing right with him. >> reporter: i also asked her whether the president would debate trump. >> we'll get to that at some point, and we'll deal with that. >> reporter: late today, biden himself asked if he'll debate his rival. >> it depends on his behavior. >> reporter: the president is now hitting the campaign trail hard, blitzing key states in the coming days, including georgia tomorrow and michigan and wisconsin next week. the president looking to capitalize on this momentum as the general election gears up. >> david: mary, thank you. there are reports just coming in at this hour of a helicopter crash near the u.s./mexico border. the texas department of public safety confirming at this hour the helicopter went down in la groia, texas. reports of possibly four people on board. a local congresswoman asking for prayers for those on board. the new tragedy in gaza. the hamas-run ministry saying five children were killed by a pallet of desperately needed aid dropped from an airplane. the parachute did not open. authorities say it crushed the children. tonight, the pentagon aware of the reports but also adding it was not u.s.-delivered aid. tom soufi burridge in the region tonight. >> reporter: this is the moment humanitarian aid dropped from the sky over gaza and turns deadly. pallets raining down. that parachute appearing to fail, plunging to the ground. chaos, as desperate palestinians run to scoop up aid. what you don't see, five children crushed to death by a pallet, according to the hamas-run health ministry. tonight, the pentagon saying it wasn't a u.s. air drop that caused the casualties. >> we've confirmed that all of our aid bundles landed safely on the ground. >> reporter: with the u.n. saying more than 500,000 gazans are facing starvation, president biden caught on this hot mic moments after the state of the union, speaking about prime minister netanyahu -- >> i told him, bibi, don't repeat this, but you and i are going to have a come to jesus meeting. >> reporter: the president quickly interrupted by an aide. today saying netanyahu needs to to do more to get aid in. and tonight, a coalition of countries backing president biden's plan for the u.s. military to build a temporary pier off gaza's coast, to allow aid in by sea. president biden saying the israelis will provide security, promising there will be no u.s. boots on the ground in gaza. just days before the start of the holy month of ramadan with no deal on a cease-fire, hamas tonight calling on worshippers to march on jewell's al aqsa mosque. tensions flaring ahead of friday prayers. you can see the real tension here. young men are not allowed into the al aqsa mosque up there, police moving them away. then peaceful prayers outside the walls amid fears of what the future may hold. david, just moments ago, president biden addressing a possible cease-fire before ramadan, saying it's looking tough. on that mission to build a pier off gaza, the pentagon saying hamas should not target that aid operation if it truly cares about the the palestinian people. david? >> david: tom soufi burridge reporting again tonight, tom, we thank you. back here in the u.s., the former president trump, and just before the deadline the former president posting a $91 million bond against what he owes writer e. jean carroll. this comes amid questions about the money trump still needs to put up, owing hundreds of millions of dollars in his other civil case. >> reporter: tonight, with a monday deadline fast appro approaching, donald trump posting a $91.6 million bond while he appealed e. jean carroll's victory in her defamation case. trump securing that money from the virginia-based federal insurance company, guaranteeing the bond with assets including cash. but it's unclear how much. carroll will not get the money now. it will be held by a court while trump pursues his appeal. and it's only a sfraction of the civil penalties he's been ordered to pay. he was fined $454 million in his civil fraud trial and will have to put a separate bond while he pursues that appeal, too. this as trump faces four separate criminal piles and his legal bills pile up. he's already used $50 million worth of donations to his political committees to pay his lawyers. tonight, new questions about whether the republican national committee will chip in, too. today the rnc stalling trump's laurel, lara trump, as vice chair. >> we have one goal. the goal on november 5th is to win, and as my father-in-law says, bigly. >> reporter: one rnc official proposing a rule to block the committee from paying trump's legal bills, but it didn't get enough votes. today lara trump saying this. >> we are going to make sure that every single penny of every dollar raised goes towards one goal, which is winning. >> reporter: again, david, rnc members are not ruling out the possibility of using donations to pay for donald trump's legal fees. it is something they have done in the past when the former president left the white house. >> david: rachel scott with us tonight as well. we turn to the dramatic testimony in the trial of father of michigan school shooting, ethan crumbley. tonight the gun store manager describing that father, james crumbley, purchasing that gun, and what the father promised on a form. later, it was that gun used by his son to kill four students. here's trevor ault. >> reporter: tonight, a michigan judge restricted jailhouse communications of james crumbley as he's on trial for his alleged role in his son's deadly school shooting. the oakland county sheriff's office saying crumbling's access to a telephone and messaging has been limited due to threatening statements he made but did not say who he allegedly threatened. today the jury of nine women and six men, most of them parents, many of them gun owners, hearing from the gun store manager who sold crumbley the weapon his then 15-year-old son used to carry out the manager. >> he said he had had his eye on that for quite some time. >> reporter: she testified crumbley received this cable lock and gun safety pamphlet with the purchase, and certified on this form he was buying the gun for himself. prosecutors playing this video. james crumbley telling police what he did when he heard there was an active shooter at his son's high school. >> immediately raced home and found the gun was missing, and that's when i called you guys. >> reporter: prosecutors playing that panicked 911 call. >> i have a missing gun and my son is at the school. >> reporter: at her trial, jennifer crumbley testified it was her husband's job to secure the family's weapons at home. >> it was more his thing, so i let him handle that. >> reporter: james crumbley has already been in jail for more than two years. and under this new order, he'll only be allowed to communicate with clergy or his lawyer. the wife previously testified the couple hasn't spoken to each other in more than two years since they were arrested. >> david: trevor ault with us, thank you. we turn to the economy. after president biden touted 15 million million new jobs under his watch last night, another number exceeding expectations. 275,000 new jobs added last month. unemployment ticking up slightly to 3.9%, reinforcing hopes for a soft landing and of lower interest rates in the coming months. when we come back here tonight, the deadly crush shutting down a state highway. at least nine dead in reports tonight between a tractor-trailer and a van. later, what the pentagon is now saying after a review of 80 years of ufo reports and all those reports that we could have alien technology here in the u.s., in a moment. i'm just a regular person. some people say, "why should i take prevagen? 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"oppenheimer" leading the way with 13 nominations. all eyes on lily gladstone, nominated for best actress in "killers of the flower moon." she could make history for being the first native american ever to win that category. and expect extra starpower on stage. five past winners in each of the acting categories, will appear together to present the awards. the last time they did this was back in 2009. plus, all five best original song nominees will perform. billie eilish could make history for her song in "barbie" -- becoming the youngest person to win two oscars, at just 22 years old. ryan gosling also nominated and will be performing the now-viral song "i'm just ken." the song's co-writer and producer telling abc news he wants to see ryan on stage with "a thousand kens." a lot to watch out for this sunday. david? >> david: we'll be watching. whit johnson, thank you. the oscars an hour normal, 7:00 p.m. sunday right here on abc. a big year for the movies. we'll see you sunday night. good night. a super sized spout in san francisco. look at this water surging above the tree tops after a water main breaks, flooding a nearby park. good afternoon. thanks for joining us. >> i'm larry beil and i'm kristen sze. the water is off, but work to repair the damage is still underway and could g on for a while. so the main burst arnd 10 this morning and next door to a house on wawona street, not far from stern grove. abc seven news reporter suzanne fawn shows us what happened. well water gushing into the air, surprising neighbors on wawona street near stern grove and pine lake park. >> robin cookston, who didn't want to appear on camera, described the spectacle. >> it looked like a giant tower of water about three stories tall. it was really surprising. >> and here's what it looked like from sky seven. the san francisco public utilities commission explained what happened, quote, the cause of the break appears to be the failure of an eight inch valve connected to a 16 inch water transmission line. the scope and schedule for all repairs, including for the hillside, into the park, is still being determined. maxine shaw saw what happened after the deluge of water came down and crews turned off the flow. >> well, there's a big pit next to someone's home, so probably there's, they're going to have to shore up the home. >> crews taped off parts of the area and were working on putting up fencing. >> so i want that fence line all the way down here. >> about three years ago, there was another water main break around here at sloat and 22nd avenue, about 700,000 gallons of water flooded