in midair before being restrained. first tonight, the future of tiktok in the u.s. the house votes toen ba it, unless the chinese company that owns it sells it. the concern here in this country over national security. and with tiktok fighting back tonight, what does tiktok look like in china? why are there far more restrictions and protections in china for young people on tiktok than here in the u.s.? and tonight, what will the senate now do next? rachel scott live on the hill. the breaking headline from georgia. the judge in the case against donald trump dropping six charges, three of them against trump, ten charges against trump remain. with the judge's decision now on the future of d.a. fani willis coming at any time. tonight, the scare onboard a passenger jet flying from san diego to washington, d.c. that young man, a student pilot, trying to breach the cockpit multiple times. tonight, he's facing federal charges. also tonight, another united boeing jet with a problem. the fifth issue in about a week. a flight to the u.s. turning back. what was seen leaking from the plane. and news tonight in that boeing case, the door that came off at 16,000 feet. the video of the, whoers working on that door erased. tonight, the images coming in now, the massive landslide in los angeles. several homes damaged. residents evacuated. and the new and major winter storm we're watching tonight. several states on alert. the warnings and watches already. denver tonight bracing for more than a foot of snow, up to 16 inches. and severe storms from texas all the way up to chicago. then moving into the northeast. rob timing it out. tonight, the danger in haiti. the u.s. snow deploying u.s. marines and anti-terror teams to protect the u.s. embassy in haiti. armed gangs surrounding the capital, and the evacuations. including famous author michal bull, who wrote "tuesdays with more rui." what he's saying tonight. back in the u.s., the college quarterback arrested tonight during spring break. actress olivia munn revealing her personal battle with breast cancer tonight. and the abc news exclusive. robin roberts with actress christina applegate and jamie lynn seigler. both are battling multiple sclerosis. tonight, their fight against ms, and their fight to help others. good evening and it's great to have you with us here on a wednesday night. word coming in tonight, that scare on a passenger flight, a young man, a student pilot, trying to breach the cockpit multiple times. and the news from georgia involving some charges dropped against donald trump. but we do begin tonight with the heated battle over the future of tiktok here in the u.s. 170 million users here in this country. tonight, the house, by an overwhelming majority, democrats and republicans, passing a measure to ban the chinese-owned app here in the u.s., unless tiktok is sold to an american company within six months. the move sparking strong reaction from tiktok users, some protesting outside the capitol. many arguing it's not just dancing videos and viral clips. some say, it's their livelihood, their business. tiktok fighting back tonight, a heavy lobbying effort on the hill. but tonight, why does tiktok look so different in china than it does here in the u.s.? why are there more restrictions, more protections for young people in china than in the u.s.? and if u.s. social media is banned in china, many are now asking, why allow a chinese company to have surch a large ad influential presence here? rachel scott leading us off from the hill tonight. >> reporter: tonight, the house overwhelmingly voting to ban tiktok, the wildly popular social media app, unless it's sold by its chinese parent company bytedance. lawmakers responding to concerns tiktok poses a national security threat and compromises the data of its 170 million american users. >> this bill therefore forces tiktok to break up with the chinese communist party. >> this is not an attempt to ban tiktok, it's an attempt to make tiktok better. tic-tac-toe. a winner. a winner. >> reporter: the fbi and top intelligence officials sounding the alarm, warning the chinese government could use tiktok to access americans' personal information. >> the problem is their ability to manipulate you. they already manipulate your algorithm based on what you like. and that can be innocent. all social media companies do that, to try to tailor your feed. but it's a problem when -- when the person in charge or the entity in charge of manipulating can be an adversary, like the chinese communist party. >> reporter: tiktok denies those allegations. but lawmakers now warning tiktok could interfere in the election. >> the risk in terms of propaganda, the risk to influence our election are just too severe. >> reporter: in china, facebook, instagram, and youtube are banned completely. and the version of tiktok available over there is much different from what we get here. listen to how a former google executive described what kids see on the chinese version of tiktok in an interview with "60 minutes." >> they show you science experiments you can do at home, museum exhibits, patriotism videos, and educational videos. and they make their domestic version a spinach version of tiktok, while they ship the opium version to the rest of the world. >> reporter: tiktok pushing back hard. a fierce lobbying effort on capitol hill. online, users enraged. >> i'm, like, literally shaking, thinking about the possibility of this. >> have there been talks about this before? sure. this time, it's serious. >> reporter: we spoke with brandon hurst, who uses tiktok to promote his plant business. >> my whole business would be devastated. i would lose the opportunity to connect with millions of people on a regular basis, and a community i've worked hard to build would be gone. >> reporter: how much are your sales are driven from tiktok? >> 100%. >> reporter: president biden recently launched his own campaign tiktok to meet young voters where they are. but he says if this bill lands on his desk, he will sign it. >> if they pass it, i'll sipe it. >> reporter: as president, donald trump once tried to ban tiktok by executive order -- but now, he's against the possible ban. he says it would help facebook, which he's railed against. trump's change in tune coming after he met with a top republican donor who has a major financial stake in tiktok's parent company. >> david: a lot to track there, as well. let's get right to rachel scott live up on the hill tonight. you heard the president there and his campaign. obviously, they're on tiktok, as well, as you pointed out, trying to reach younger voters, but the president very clear, he says he's ready to sign this bill if the senate passes it, as well? >> reporter: yes, david. and even with the president's support, there are no signs that the senate will move quickly. senate majority leader chuck schumer says they only plan to review this legislation. and tonight, china responding, blasting this move, insisting that it will only backfire on the u.s. but again, david, the version of tiktok that's available in china is largely educational and far different from what's available here in the u.s. david? >> david: a lot of strong opinions, but that's a very important point, rachel, thank you. we turn now to the breaking news from georgia, in the case against donald trump. tonight, the judge with an unexpected ruling. throwing out six charges, three charges against trump. it comes as that same judge is now set to decide the future of d.a. fani willis in this case. a decision that could come as early as tomorrow or friday. here's our senior investigative correspondent aaron katersky tonight. >> reporter: tonight, all eyes on one judge in georgia. he's expected to rule this week on whether fulton county district attorney fani willis should be removed from donald trump's election interference case. but today, the judge handing down a surprise decision, and a setback for prosecutors, throwing out six criminal counts against the former president and some of his co-defendants. one of those counts involves trump's phone call to georgia secretary of state brad raffensperger, urging him to find the votes trump needed to win. >> so, look. all i want to do is this. i just want to find votes, which is one more than we have, because we won the state. >> reporter: prosecutors seized on that call to charge trump with soliciting a public official to violate his oath of office. but today, judge scott mcafee ruled they failed to include sufficient detail, and did not give the defendants enough information to prepare their defenses intelligently." judge mcafee used similar reasoning to dismiss charges that trump and some of his co-defendants pressured public officials to call a special session of the state legislature and decertify the election results. the opinion impacts the cases against not just trump, but also his former chief of staff mark meadows, his one-time lawyer rudy giuliani, and three other defendants. the judge gave prosecutors six months to decide whether they want to refile those dropped charges, addressing his concerns. and that phone call with the georgia secretary of state will still play a key role in other parts of the case. the former president, who had been facing 13 counts in georgia, now faces ten, including the most serious one -- racketeering. he has pleaded not guilty. the judge is now set to decide by friday, david, whether to disqualify the d.a., weighing whether herro man tick relationship with a special prosecutor she hired for the case is enough to pose an actual conflict of interest or merely the appearance of one. david? >> david: aaron katersky following all this for us again tonight. thank you. we're learning more at this hour about a scare onboard a passenger jet from san diego to washington, d.c. a young man, a student pilot, allegedly trying to breach the cockpit multiple times. tonight, we have learned off-duty officers who happened to be onboard, stepping in to restrain him. here's abc's mola lenghi now. >> reporter: tonight, a 19-year-old student pilot is facing federal charges after allegedly trying to breach the cockpi passenger on an alaska airlines flight from san diego to washington, d.c. >> he attempted to access the flight deck three times. >> reporter: according to an affidavit, nathan jones allegedly "got out of his seat multiple times" and "made three separate attempts" to open the cockpit door, before flight attendants called for help from eight off-duty officers who happened to be onboard. they restrained jones in flex cuffs until the 737 landed. >> he's just very confused. but then he would not listen to taking his seat. and after many repeated attempts, they decided to just put the plastic cuffs on him. >> reporter: when flight attendants allegedly asked jones why he did it, he said he was "testing them." agents who searched his belongings found his student pilot's license and notes on how to operate an aircraft. well, jones is charged with interfering with a flight crew. his family says he has no history of violence, and they're calling for a mental come pen ten si exam, saying it will prove he never intended to harm anyone. david? >> david: mola, thank you. meantime tonight, there's been another united boeing jet with a problem. this time, on a boeing 777 on its way to san francisco. this is the video tonight of what looks like smoke, right there under the right engine. that is actually hydraulic fluid leaking from the landing gear. the passenger jet was forced to turn around. and it comes tonight amid a new headline in the case of that boeing jet, the door coming off at 16,000 feet. the video of the workers working on that door was erased. automatically wiped clean after 30 days. here's trevor ault. >> reporter: tonight, watch as moments after this boeing 777 takes off in sydney, hydraulic fluid is seen leaking from the landing gear. the plane carrying 183 passengers and crew, heading to san francisco monday, turning around less than an hour into the flight, landing safely back at sydney airport, met by fire crews. it's the fifth incident involving a united boeing plane in recent days, following this engine fire and this wheel falling off a jet during takeoff last week. and all this comes amid the investigation into that door plug that flew off an alaska airlines flight at 16,000 feet. today, the ntsb says boeing hasn't given them all the information they need. officials telling the senate commerce committee, "we still do not know who performed the work" on that door plug, and that boeing has been "unable to find the records documenting this work." the ntsb also saying that security footage had been overwritten as part of standard procedure. >> we asked for security camera footage so we can understand who did the work. all their security camera footage is reraced within 30 days and overwritten. >> reporter: boeing stating, "we will continue supporting this investigation in the transparent and proactive fashion." the company promising changes to it's safety procedures, including added layers of inspection. and david, on that fuel leak in sydney, united says the plane returned due to a maintenance issue. passengers were rebooked on a later flight. david? >> david: trevor, thank you. we turn now to the major winter storm we're tracking at this hour. heavy snow, damaging winds, heading right across the country. multiple states on alert already at this hour. california to montana to new mexico. denver expecting up to 16 inches of snow from this. then texas up to chicago, then right into the northeast by the weekend. senior meteorologist rob marciano timing it out for us. hey, rob. >> hi, david. denver gets some of their biggest snowstorms in the month of march, and here we are. we have high wind alerts back through california. this storm is going to draw out. but the heaviest snows will be east of the divide. two to three feet there. maybe over a foot in the western suburbs of denver. severe weather out ahead of this. we have watch boxes up for kansas and parts of st. louis. tomorrow, that expands greatly, we're looking for the rain to rapidly push into parts of chicago while it's still snowing in denver. and then look for severe weather, maybe some tornadoes across little rock. and then rain here in the northeast on friday. david? >> david: thank you, rob. and from california tonight, the images coming in, a massive landslide taking out multiple homes in los angeles in sherman oaks. at least three homes danieled. one of them under construction at the time. you can see part of the back of this home sheared off. residents had to be evacuated. no one was hurt. it does come after months of record rains there. they're now bracing fur winds gusting up to 65 miles per hour. we turn tonight to the danger in haiti. we have been reporting here on the spiraling chaos in haiti, gangs surrounding the capital. tonight, the u.s. now sending in mari marines, an anti-terror team, to protect the u.s. embassy. and news of evacuations, including famous author mitch album. we spoke with him just a short time ago. matt rivers again tonight. >> reporter: tonight, with haiti in chaos four army helicopters flying in an elite group of dozens of u.s. marines into port-au-prince to reinforce security at the u.s. embassy, days after the military evacuated some american staffers before the sun came up. thousands of americans, like missionary myriam sinoti and her group, trapped and desperate to escape. >> they can come and get some, they need to come and get all. >> reporter: with gangs controlling the city, veteran-led rescue group project dynamo said they are headed to haiti to try to help evacuate citizens. two members of congress organizing a private evacuation of ten americans out of haiti. that included best-selling author mitch album who wrote "tuesdays with morrie." he and his team saying good-bye to the children at the or fannage his charity runs. saying he's luckier than so many others still there, amidst the violence. >> when we came over the haiti air space to the dominican republic and they said, we're clear, my wife and i were hit with a deep pang of sadness, because our kids are still there, and our staff is still there. >> reporter: but for the vast majority of americans there, like jill dolan, they can't escape, calling on the u.s. government to begin evacuations. >> every day, i wake up thinking, lord, please send us a chopper, please send us an airplane that's going to come and rescue us today. >> reporter: and david, port-au-prince calm for now, but that violence could spike at any moment, which would, of course, make any potential evacuations that much harder. david? >> david: matt rivers, thank you. when we come back, the college quarterback arrested on spring break tonight. in trouble twice within 30 minutes. and the robin roberts exclusive tonight, sitting down with actress christina applegate and jamie lynn sigger will, both battling ms, and both opening you right here tonight. ♪ ♪ you don't have to wait until retirement to start enjoying your plans. with pacific life... ...imagine your future with confidence. for more than 150 years... we've kept our promise to financially protect and provide. so, you can look forward to exploring your family's heritage with the ones you love. talk to a financial professional about life insurance and retirement solutions with pacific life. for people who feel limited by the unpredictability of generalized myasthenia gravis and who are anti-achr antibody positive, season to season, ultomiris is continuous symptom control, with improvement in activities of daily living. it is reduced muscle weakness. and ultomiris is the only long-acting gmg treatment with the freedom of just 6 to 7 infusions per year, for a predictable routine i can count on. ultomiris can lower your immune system's ability to fight infections, increasing your chance of serious meningococcal infections, which may become life-threatening or fatal, and other types of infections. complete or update meningococcal vaccines at least 2 weeks before starting ultomiris. if ultomiris is urgent, you should also receive antibiotics with your vaccines. before starting ultomiris, tell your doctor about all of your medical conditions and medications. ultomiris can cause reactions such as back pain, tiredness, dizziness, limb discomfort, or bad taste. ultomiris is moving forward with continuous symptom control. ask your neurologist about starting ultomiris. alice loves the scent of gain so much, ask your neurologist she wished there was a way to make it last longer. say hello to your fairy godmother alice and long-lasting gain scent beads. part of the irresistible scent collection from gain! feeling claritin clear is like... ♪ is she? 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>> i mean, yes, yes. i live kind of in hell. >> reporter: that raw honesty infused with humor carrying her through. when we saw you last at the emmys presenting and i kind of just say, the emotions that i felt when you came out on that stage -- >> thank you so much. oh, my god. you're totally shaming me with disability by standing up. >> reporter: were you able to take in the moment? >> yeah, i kind of blacked out and people said, oh, you were so funny. i don't know what i said. and i felt really beloved and it was really a beautiful thing. then, i'm just going to say this -- that audience stood up for everybody. >> reporter: come on. jamie was starring in "the sopranos" she was diagnosed at 20 years old. the two have bonded over their shared disease, supporting each other through its unique challenges. >> for so long, i've been celebrated for being the strong one, and the positive one, that it felt like would admit that some days were hard. and she's pushed me to say that. because i thought i was letting people down if i talked about how hard it was sometimes. >> i was kind of putting on a little act for everybody for so long, and i just thought that was easier, to be light, be funny, be light, don't make people feel uncomfortable. and i don't care anymore. >> reporter: well, christina, it's nice to finally meet you. >> yes. yes. >> david: we are pulling for christina and jamie and all the people out there battling ms. more of robin's interview well, here we are, more than a week after the primary election, and several races are still too close to call generation. >> after they lost their land, it's being returned to bay area. >> indigenous people and protesters take over part of san francisco international airport, forcing travelers to travel a little bit farther. good afternoon. thanks for joining us. i'm larry biel, and i'm kristen sze. >> protesters calling for a ceasefire in gaza shut down part of san francisco international airport for more than three hours this morning. part of the off ramp to the international terminal was impacted, along with two security checkpoints. abc seven news reporter suzanne vaughan has a look at what happened. they sang, they clapped, they drummed of protesters shut down part of the international terminal at san francisco airport to get their message across. today here's how things looked from sky seven. we cannot stand idly anymore. demonstrators say it was part of a global day of action to demand a permanent ceasefire in gaza and an end to u.s. financial support for israel military travelers, flight crews, people coming and going through the area got a taste of detours and delays, and they blocked the roads. >> so we stuck there for almost 25 minutes. >> i think it's just a noise. people i understand the issue, but i don't think it's the right way to do it. >> demonstrators say the airport protest was aboci