event. rob marciano and zohreen shah standing by. next, the clock ticking for the trump legal team. the special counsel requesting a protective order in the january 6th case. the judge wants a response within hours. it comes after the former president's threatening post, if you go after me, i'm coming after you. and what he's now saying about the judge in the case. maryalice parks reports from the justice department. the horrific scene off italy's amalfi coast. an american executive killed when the boat she was on with her husband and children collided with a sailboat where passengers were celebrating a wedding. what we learned about the investigation. also tonight, u.s. navy destroyers dispatched off the coast of alaska after tracking russian and chinese war ships on patrol. the joint exercise raising alarm bells at the pentagon at a time of heightened tension with the two countries. new details in that alleged murder for hire scheme in the bahamas. an american mother of three accused of plotting to hire an alleged assassin to kill her estranged husband. what a court document has revealed. a dramatic rescue at sea. a man stranded on a sinking boat for a day and a half before the coast guard finally spotted him. his family speaks out tonight. a heartbreaking loss for team usa. knocked out of the world cup in their earliest exit yet. simone biles makes a triumphant return to competition. eyeballing the next olympics and she captured the attention of the world, born in the rubble of an earthquake. now that miracle baby starting her life anew. >> announcer: from abc news world headquarters in new york, this is "world news tonight." >> linsey: good evening, everyone. thanks so much to joining us on this sunday. i'm linsey davis. as we come on the air, millions are on alert for severe weather. forecasters say the next 24 hours are critical as large system packing powerful thunderstorms and possible tornadoes moves through the nation's heartland before taking aim at a wide swath of the east coast. that same system is spawning multiple reported tornadoes this weekend. this funnel cloud spotted near colorado springs. at the same time that heat wave is maintaining its grip from coast to coast. heat alerts stretch from california to florida. the heat and severe drought working against firefighters as they battle a 400-acre wildfire south of austin, texas, and stunning new images of a house crashing into a flooded river in alaska. the city of juneau issuing a state of emergency. some experts point to climate change. but we begin with those storms and abc's senior meteorologist rob marciano. time these storms out for us. >> reporter: this is a pretty expansive system for the middle of summer. a cluster of storms across the south and north. we had over 50 damaging storm reports with winds gusting to over 60 miles per hour. alabama, georgia. you see that watch box up there. a tornado watch out for st. louis. now a flood watch for d.c. and baltimore for the storms that will gather tonight. that will drop heavy rain through that area. through the new york area as well, and another couple pulses coming during the day tomorrow, which could be severe. from new england to new york to d.c. to all the way down into parts of georgia. very expansive. the heat also expansive. excessive heat warnings remain up for much of the south and toward the southwest as we wrap up this first week of august, which is continuing the warming trend globally that we had in july. linsey. >> rob, we know you'll be watching it all for us. thanks so much. >> linsey: now to those incredible images from alaska. at least two homes crashing into flood waters sparked by rapidly melting glaciers. several other homes now at serious risk. here is zohreen shah. >> there it goes, there it goes >> reporter: tonight, the dramatic moment a massive house, collapses into this river in alaska. >> we were watching the bank just slowly eroded. then, all of sudden, the whole roof and everything just came down. >> reporter: watch as the raging rapids of the mendenhall river erode the banks in juneau, triggering the destruction. this giant tree toppling into the rushing water before being swept downstream. officials tonight issuing an emergency declaration, blaming the flooding on the rapid melting of the mendenhall glacier. experts say alaska is warming at twice the rate compared to the rest of the country. that warming contributing to this unprecedented flooding event. >> this is a 1% to 0.2% chance of this type of flood taking place at any given time, so this is a very rare event. >> reporter: the mendenhall glacier, considered the region's crown jewel, drawing thousands of tourists each year. but right now, officials say the banks of the mendelhall river remain highly unstable tonight and they're urging people to stay away. >> we understand why, zohreen, thank you. >> linsey: former president trump and his legal team are hours away from a critical deadline. a judge in the 2020 election interference case has told trump's lawyers they must respond by 5:00 p.m. tomorrow for the special counsel's motion for the protective order. on the campaign trail, trump remaining defiant, telling his supporters i'm being indicted for you. tonight, former vice president mike pence with his clearest statement yet, saying trump was indeed asking him to overturn the election. here's abc's maryalice parks from washington. >> reporter: tonight, after a federal judge denied his request for a three-day delay, former president donald trump is less than 24 hours away from yet another crucial legal deadline. by 5:00 p.m. tomorrow, he must respond to special counsel jack smith's request for a protective order. smith's team pointing to trump's social media use and arguing trump might use it to disclose evidence or even intimidate witnesses in the january 6th case. trump, who has pleaded not guilty, remaining defiant in south carolina last night, running on the indictments. >> i consider it a great badge of honor because i'm being indicted for you. >> reporter: trump's own former vice president and current primary rival, mike pence, who could be a key witness in this case, growing more vocal about his experiences after the 2020 election. >> frankly, the day before january 6th, if memory serves, they came back, his lawyers did, and said, "we want you to reject votes outright." they were asking me to overturn the election. i had no right to overturn the election. >> reporter: on "this week," george stephanolpolous pressing trump lawyer john lauro on pence's views of trump's actions. >> he said it was wrong, never said it was criminal. you may think someone is acting inappropriately under constitutional principles, but mr. pence, who is a lawyer, never said to mr. trump, "i think what you're doing is criminal." >> reporter: part of the argument is people close to trump told him squarely he lost the election. bill barr saying today he would be willing to testify to that under oath. >> on three occasions, at least, and i -- i told him in no uncertain terms, that there was no evidence of fraud that would have changed the outcome. >> calling this third indictment a legitimate case. maryalice parks joins us now from the justice department. give us a preview of the defense strategy by trump's legal team. >> reporter: well, linsey, trump today posted on his social media accounts that he doesn't think he can get a fair trial in d.c. he wants to ask for a recusal from this judge. we'll see if his team actually makes a request like that in court. i can tell you that several other january 6th defendants have requested a change in venue. it's very rare. none of them have been granted that. linsey. >> maryalice, thank you. >> linsey: tonight, new details in the death of a publishing executive in a boating accident in italy. adrienne vaughn was on vacation in italy when their rented motor boat slammed into a larger boat throwing her into the water. italian officials are launching an investigation into the skipper of the boat she was on. here is lama hasan. >> reporter: a wedding celebration on a sailboat off italy's amalfi coast quickly turning to tragedy. >> what happened? >> reporter: a rented motorboat carrying american publishing executive adrienne vaughan and her family slamming into the much larger sailboat. passengers running to help, throwing inflatables. sections of the now-splintered motorboat drifting away. an italian prosecutor saying the 45-year-old was seated at the bow of boat, the sheer force of the collision throwing her overboard. italian media reporting that vaughan's two children were also thrown into the sea. a nearby vessel seen here bringing the children and vaughan's husband to shore. an air ambulance also rushing to the rescue. emergency workers trying to save vaughan, but she was ultimately pronounced dead at the scene. vaughan was the president of bloomsbury publishing usa and served on the board of the association of american publishers, who called her "a leader of dazzling talent and infectious passion who had a deep commitment to authors and readers." adding, "most of all she was an extraordinary human being." linsey, the driver of the motorboat is now being investigated for suspected manslaughter according to that italian officials. and tonight, the driver's lawyer telling abc news his client is describing the collision as happening like a flash and he tried to rescue adrienne vaughan. linsey. >> just so horrific. thank you. >> reporter: now to the growing tension between russia, china, and the united states. abc news confirmed the u.s. dispatched multiple destroys and an aircraft after tracking chinese and russian ships near the aleutian islands of alaska. dan sullivan calling that foreign patrol unprecedented in size. let's bring in ike ejochi in washington for us. what more are you learning tonight? >> reporter: the united states taking swift action, sending four u.s. navy war ships to the aleutian islands after senators said 11 russian and chinese ships came close to american waters. now, officials say those foreign ships were on patrol in international waters conducting a joint naval exercise. the incident highlights the growing cooperation between these two foreign powers, and it's not the first time this has happened. in september of 2022, the coast guard spotted chinese and russian ships also near the aleutian island chain. u.s. officials say the military had been expecting this chinese/russian patrol for several weeks, and north com saying in a statement that the foreign patrol stayed in international waters that was not considered a threat, but clearly, linsey, concern for the u.s. moving forward. >> and swift u.s. response there. ike, thank you. >> linsey: tensions between the u.s. and russia already high after russia's invasion of ukraine, and tonight, ukraine bringing the war home to russia. explosions could be seen in this video circulating online. two bridges in russian occupied crimea successfully hit and another attempted drone strike on moscow. abc's chief foreign correspondent ian pannell from kyiv. >> reporter: tonight, another attempted drone strike on moscow and successful ukrainian strikes on two key bridges in occupied crimea seen in video circulating online. ukraine trying to limit russia's ability to move men and military equipment to the front lines. there have now been five drone attacks on moscow in the last two weeks. some hitting a building housing russian government offices. and in the black sea, water-borne drones crippling a russian warship. then, the following day, a russian oil tanker. blaming ukraine, the kremlin vowed to retaliate. overnight and into this morning, launching 70 missiles and drones in several waves. firefighters worked for hours to put out the flames after a grain storage site was hit outside kyiv. other military and civilian targets were also struck, including this blood transfusion center, according to president zelenskyy. as the war grinds on, peace talks concluding in saudi arabia without any written statement. russia not invited. ukraine hoping to rally nations including china, india, the u.s., and european countries, to its peace plan that includes a full withdrawal of all russian forces. linsey, the kremlin pouring cold water on these talks. spokesman dimitriy peskov saying there are no grounds for a peace agreement with kyiv, and what they call 'a special military operation' will continue for the foreseeable future. linsey. >> ian, thank you. >> linsey: we turn now to the chilling new details in the alleged murder for hire plot. authorities in the bahamas are focusing on text messages from the phone of an american mother of three now charged with murder conspiracy and an alleged plot to kill her husband. here's abc's jaclyn lee. >> reporter: tonight, a court document obtained by abc news reveals the shocking text message bahamian authorities allege a georgia mother of three sent in a plot to kill her estranged husband while on vacation. "kill him" was the whatsapp message authorities say 36-year-old lindsay shiver admitted in a police interrogation to sending an alleged hitman, along with photos of her husband robert shiver, who bahamian police say became fearful for his life and the lives of his children. detectives alerted the former auburn university football player to that alleged murder plot only after lindsay's alleged lover terrance bethel became a suspect in an unrelated burglary and his phone was obtained in a search warrant. prosecutors say they discovered those text messages between lindsay, bethel and the alleged would-be hit man, farron newbold jr. all three declined our request for comment. >> it's been my experience, that people who plot to kill their spouses almost ultimately always get caught because they don't know what they're doing. >> reporter: documents show the shivers were divorcing after 13 years of marriage, with robert citing "adulterous conduct" and lindsey accusing him of "physical and mental cruelty" and "acts of domestic violence." in 2020, shiver posting on social media, "the key to a perfect marriage is having two imperfect people who refuse to give up on each other." linsey, shiver is expected to be released on bail come tuesday. her two alleged coconspirators have already been released on $20,000 bail. robert shiver's family spokesperson declined to comment. >> thank you. >> linsey: next tonight, the incredible rescue at sea. charles gregory had not been heard for in more than a day. his anguished parents had just about given up hope, but the coast guard had not. crews found gregory on top of his capsized boat. the 25-year-old was dehydrated but alive. his parents say he's now recovering at home. here's abc's alex presha. >> reporter: tonight, a florida family's prayers answered in this rescue at sea caught on camera. the crew aboard this coast guard cutter able to pull charles gregory to safety 12 miles off the coast of st. augustine, florida. >> we cannot thank the coast guard, fire rescue, st. augustine, everybody, the paddle boarders, everybody, we just want to say thank you so much. >> reporter: the 25-year-old was last seen thursday night leaving in his 12-foot john boat. his family reported him missing the next day, triggering a massive search. >> not the kind of vessel you want to be in in an off-shore environment. the odds were kind of against us in this case despite all of our search effort. >> reporter: but by saturday morning, they found their needle in a haystack, a coast guard plane spotting gregory sitting barely afloat in his partially submerged boat. first responders rushing him to safety and checking in on him. his father saying he's very dehydrated and sunburnt, but okay. >> there's a god up there. if you ever thought it wasn't, let your kid go missing off-shore in the ocean for 38 hours. i gave up hope. i should never give up hope. >> reporter: tonight, charlie's father says he's been discharged from the hospital and recuperating at home. the coast guard says storms in the region are often small enough to wreck smaller boats. they're urging boaters to have life jackets on board, to keep a marine grade radio, flares, and an emergency beacon locater just in case. linsey. >> essentials for boating. thank you. >> linsey: now to the heart breaker at the women's world cup. team usa is heading home. their attempt at history is now over. americans falling to sweden in an overtime shootout that went down to the wire. their earliest exit ever. the defeat wasn't the way megan rapinoe, one of the greats of the women's game, wanted to end her career, but she says she's now looking forward to the future of the sport. >> the progress that this team and so many other teams around the world have been able to make. and i feel like we've been such a huge part of that. the game is in a great place, a great place to step away. >> rapinoe playing in her fourth world cup. she first joined team usa in 2006. >> linsey: there's much more ahead on "world news tonight" this sunday. two women were killed when a boat went up in flames, and the frantic search for victims after a train went off the rails overseas. remember the things you loved... ...before asthma got in the way? 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