making news in america this morning, two major shake-ups at the white house. the president choosing john bolton as his new national security adviser, a defender of the iraq war who in the past called for preemptive strikes against north korea and iran. what bolton's arrival could signal. plus, the fallout as the president's personal lawyer in the russia investigation resigns. stocks plummet on wall street as president trump announces trade tariffs on china and breaking overnight, china responds. chaos in sacramento. [ chanting ] >> crowds protesting the police shooting of an unarmed black man shutting down a major interstate and converging outside a basketball arena blocking the entrances delaying an nba game.

the video of the shooting and what you can't hear on the tape. also this morning, a major american city falls victim to a cyberattack. the ransom now being demanded. craigslist says good-bye to personal ads saying they're no longer worth the risk. another march madness thriller. loyola-chicago's cinderella story rolls on. a lot of brackets are busted, indeed. >> oh, yes. >> especially if you had one with white house players there, indeed. lots of shake-ups at the white house. we're going to start there. president trump's personal lawyer has resigned. >> and in a separate development, the president has chosen a controversial new national security adviser. former ambassador john bolton is known for his aggressive views and he previously called for preemptive attacks on north korea and iran. >> in his first interview since being chosen for the job, bolton admits the president's announcement actually took him by surprise.

abc's stephanie ramos has more. good morning, stephanie. >> reporter: kendis and diane, good morning. this latest swap at the white house was expected but john bolton wasn't. the former bush administration official now has a big say on foreign policy issues. >> the motion to concur is agreed to. >> reporter: overnight congress passed a $1.3 trillion spending bill funding the government till the fall and bumping of funding for the military. but at the other end of pennsylvania avenue, more top level trump administration officials are exiting the white house just a week after the firing of secretary of state rex tillerson. the president tweeting that his national security adviser h.r. mcmaster is out and former u.n. ambassador john bolton is in. >> i didn't really expect that announcement this afternoon. >> reporter: it's trump's third national security adviser in 14 months. bolton has been a controversial figure in washington, a staunch supporter of the 2003 iraq war

which the president himself calls a big mistake. bolton has also pressed the white house to take tougher positions on iran and north korea. >> well, i think the national security adviser and the entire structure of national security decision-making in the united states is intended to be flexible. it's intended to be adaptable to the way the incumbent president wants to structure it. >> reporter: also out, trump's lead attorney on the nearly year-long russia investigation, john dowd. sources tell abc news dowd felt the president was no longer taking his advice. john dowd was strongly opposed to president trump sitting down for an interview with special counsel robert mueller. but dowd's departure now makes that interview more likely with mueller and president trump has said he'd like that. kendis, diane. >> all right, a lot of change at the white house. stephanie ramos in d.c., thank you, steph. now to the other big breaking story overnight. fears of a possible trade war with china. today china announced that it's

ready to impose $3 billion of new tariffs on american products including aluminum, steel, pork, fruit, even wine. beijing is calling on washington to negotiate a deal. it's all in response to president trump's decision to impose $50 billion in tariffs on chinese imports. overnight the white house said it'll suspend other controversial tariffs for u.s. trading partners including the eu, south korea, canada and mexico, but the dispute with china is what global investors are most concerned about. this morning, stocks in asia fell sharply. the nikkei in japan fell 4% one day after the dow fell more than 700 points. now, despite the growing concerns in the markets, the white house says the fundamentals of our economy remain strong. and outrage is growing this morning after the police shooting of an unarmed man in california. protesters filled the streets of sacramento chanting black lives matter even stopping traffic and blocking the entrance to a basketball game.

they're demanding to know why that man was shot and killed while holding only a cell phone. >> his life matters. his life matters. >> reporter: overnight protesters are calling for justice in sacramento. >> they murdered him. they murdered him. >> reporter: hundreds of people locked arms around the golden one center delaying the start of the kings' nba game and shutting down interstate 5. [ chanting ] they're protesting the death of stephon clark after video was released showing the unarmed man being shot by police. investigators say it started when neighbors called 911 reporting a man breaking car windows then hiding in a backyard. video from the police helicopter showed someone running and hopping a fence. >> all i can tell you is he's got a hoodie on. he's looking into another car. >> reporter: seconds later you see police approaching clark at his grandmother's house. >> drop your gun. >> reporter: police say they fired 20 rounds because clark advanced toward them holding what they believed to be a gun and that they feared for their safety but he was only holding a phone.

>> my baby was shot so many times. he was shot. >> reporter: investigators say they found three damaged vehicles and a shattered sliding glass door which they believe clark is responsible for. >> i hear folks talking about he was doing something that was like criminal. he was breaking windows. how do we know that? the police didn't even have the opportunity to identify if he was the suspect. >> reporter: also adding to the outrage, shortly after the shooting, the officer's body cams went silent while talking to a supervisor. a spokesman for the police department tells "the sacramento bee" newspaper there are a variety of reasons why officers have the opportunity to mute their body worn cameras. police reported no arrests during the protest. both officers in the case are on administrative leave as authorities investigate the shooting. a major development in the austin serial bombing investigation. we've learned the suspect may have been tipped off by accident. sources say paramedics sent to the neighborhood as a precaution during the investigation knocked

on his door and spoke to his roommate. the suspect left home a short time later, but authorities say that actually helped them because it allowed s.w.a.t. teams to engage the suspect in a remote area. detectives have now revealed that he kept a hit list of potential targets. now, police say a search of those targets turned up no other explosives. and we learned overnight two firefighters have died in new york, pennsylvania, after a burning building collapsed. the firefighters were inside the former piano factory which was being converted to apartments when the fire broke out.t on wh fire. and here in new york, a firefighter was killed overnight battling a fire on a movie set. the movie called "motherless brooklyn" starring edward norton was being shot inside a former bar in harlem. we're told norton was at the scene. three other firefighters suffered minor injuries. what's been called the strongest storm of the season is drenching much of california

flooding streets and swelling rivers. a driver trying to cross this flooded road near los angeles flipped over and was trapped inside that suv. a good samaritan there used a rock to break the window and actually pulled him out to safety. much farther north rushing water nearly destroyed a dam that's a key part of the san francisco bay area's water system. but authorities say the dam is now holding. let's take a look now at your forecast for this friday. a new storm system is moving into the west bringing rain and some snow into the pacific northwest and a chance of more rain in northern california. snow is expected in the rockies. some areas could actually see up to a foot. los angeles is drying out finally with a high today of 66 degrees. along the east coast temperatures will be mostly in the 40s for boston, new york, washington and mostly in the 60s across the south. the hot spot today will be phoenix, 83.

coming up, a new change for people who use craigslist. but first the investigation into a deadly explosion inside a u.s. air force base. was it a terrorist attack? and later, a teenager's driving test goes

the fbi and the air force investigating whether a deadly security breach at this military base in northern california was an act of terrorism or suicide. the driver of an suv gained what officials call unauthorized access through the gate of travis air force base then crashed and then died. officials say the driver was a civilian and the vehicle was carrying propane tanks that exploded on impact. as many as half a million people are expected to flood

washington, d.c. this weekend in a call for gun control and school safety. the march for our lives comes as five survivors of the parkland, florida, school shooting grace the cover of the latest "time" magazine with the single word, enough. stoneman douglas high school students were on capitol hill thursday for a premarch rally and say congress needs to move faster to find better ways to keep them safe. more than 800 rallies and events are planned tomorrow around the world. in the meantime, a tragic update to the school shooting in maryland this week. the 16-year-old victim, jaelynn willey, is being taken off life support. her family says she never recovered from being shot in the head. the other victim has been released from the hospital. the fbi is investigating a cyberattack on the city of atlanta. the so-called ransomware attack on the city's computer network triggered outages across several departments. a ransom note demanded $51,000 in digital currency to unfreeze the servers. officials say the attack did not affect crucial operations like public safety or water service.

well, craigslist has shut down its personal ad section. people looking for casual encounters or missed connections will now get this message. it's all about a new sex trafficking law passed by congress that holds websites liable for people who misuse personal ads. craigslist says it no longer wants to risk posting the ads. well, it's a beautiful day in the neighborhood for fans of mister rogers. the postal service is issuing a forever stamp today honoring the children's television host. "mister rogers' neighborhood" went nationwide 50 years ago this month. >> when a stamp probably cost about a cent or a penny. >> oh, yes. when we come back, yet another upset in march madness. but first a former "playboy" model details her alleged relationship with president trump years ago and her response when she says trump tried to pay her. and the dramatic video as a tractor trailer careens out of control in front of a school bus. bus.

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some dash cam video from greenville, south carolina, caught the moment a tractor trailer jackknifed right in the path of a school bus. video inside the bus shows the driver bracing for impact along with four students on board. the vehicles did collide. one student was sent to the hospital but only as a precaution. the truck driver has been charged with a violation. in the same school district just one day later this happened. strong winds blew a tree right on top of this school bus as it was driving down the street. thankfully nobody was seriously injured. wow. >> what a scene. and the former "playboy" model who says she had a ten-month affair with donald trump a decade ago is speaking out. >> in an interview with cnn, karen mcdougal says that she had feelings for trump but said the affair was tearing her apart, so she broke it off and she says after her first sexual encounter with trump in 2006, he tried to pay her. >> did he actually try to hand you money? >> he did.

he did, and i said -- i mean, i just had this look of, i don't know, just i don't even know how to describe it. the look on my face must have been so sad because i had never been offered money like that before, number one, and, number two, i thought, does he think i'm in this for money or why i'm here tonight? i didn't know but i looked at him and i said, that's not me. i'm not that kind of girl and he said, oh, and he said you're really special and i was like, thank you, so i left, i actually got into the car for keith to take me home and i started crying. i was really sad. and it really hurt me, but i went back. >> mcdougal has also apologized to melania trump. the white house says president trump denies having an affair with mcdougal. a bizarre custody battle involving a florida couple and a native american indian tribe is apparently settled. rebecca sanders, a member of a native american tribe in the everglades, says tribal police acting on false accusations by her mother took her 2-day-old

from the hospital. the grandmother claimed the baby girl's father was abusive. sanders claims her mother did not want the baby growing up with a white father. the tribal judge has now ordered the grandmother to give the infant back to the couple. we are hearing for the first time from a florida mother who filed a lawsuit following that deadly bridge collapse in miami. katrina collazo was inside that suv that you see there. the bridge narrowly missed the front seat, but her 3-year-old daughter's car seat in the back was destroyed. luckily her daughter was not in the car at the time. >> that crosses my mind every second of the day that just because it was 1:45, 1:47 my daughter was not in that car. i don't even know what i would have done. i don't know because she's my life. she's my daughter. >> collazo suffered some serious

injuries to her back and head and is now suing the construction firms that built the bridge for negligence. now, early details from the investigation show the bridge collapsed as workers were adjusting tension rods. we move on now into the march madness. florida state easily beating gonzaga last night. kansas state held on to beat kentucky. >> but the game everyone is talking about is loyola-chicago's big win over nevada. the ramblers moved on to the elite eight with a one-point win over the wolfpack. the victory thrilled loyola fans, especially sister jean. but the ramblers also busted her bracket. she had them losing in the sweet 16. but she seems pretty okay with that. >> i already told them as they came off the court, great game, and they said -- one of them said to me, clayton said, we broke your bracket, sister jean. i said, i don't care that you broke my bracket. i'm ready for the next one. >> ah, that's awesome. loyola plays kansas state

tomorrow night for a spot in the final four. the ramblers haven't been there since winning it all 55 years ago. >> i think it's all because of sister jean. >> yeah, i think she's cool with it. >> by the way, loyola now has a mini version of their team captain sister jean to bring them some luck tomorrow night. legoland's discovery center has unveiled a dunking sister jean complete with a little basketball and a go loyola sign. >> she has seen a lot in her 98 years. i think that's a first. >> she's got some ups. look at her go. up next in "the pulse," a new attempt to save toys "r" us. also ahead, why a woman was given a $10,000 voucher to not travel on united. plus, the driving test that went horribly wrong. oh, sorry i'm late, sir. i had a doctor's appointment. when you said you were at the doctor, but your shirt says you were at a steakhouse... that's when you know it's half-washed. now from downy fabric conditioner comes downy odor protect with 24-hour odor protection.

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>> so, her flight from washington, d.c. to austin was full, so when one of the seats broke, united asked people for volunteers to skip the flight in return for vouchers. but no one actually budged. >> so the airline reportedly approached the lowest fare ticket holder and then the bargaining started. they offered her $2,000 to sign a document saying she voluntarily left the flight. she refused wanting cash until it reached a $10,000 voucher and says i'm not going to lie. i'm pretty pumped. >> yeah, and she paid $160 for her ticket. >> not bad. speaking of big bucks, a gofundme campaign is trying to save toys "r" us. >> the toy executive behind the bratz dolls has launched a campaign along with a group of investors trying to buy all of the store's assets through the bankruptcy process. >> and he and his partners have pledged $200 million. they're trying to get to a billion dollars. next to a rough ride for a new driver in buffalo. >> a 17-year-old who was taking

her driver's license exam crashed into this building. she didn't even get out of the parking lot. police say she put the vehicle in drive instead of reverse. no one, we should say, was injured. >> i'm guessing she didn't pass the test. >> i'm thinking not but, hey, she signaled as she was slamming into the baghdad. >> there's that. a college student who found a use for potholes. >> he poured an entire box of lucky charms and a gallon of milk into a pothole outside detroit. he says two spoonfuls tasted fine. >> okay. a few grains. >> magally delicious from the first moment you met it was love at first touch and all you wanted to do was surround them in comfort and protection that's why only pampers swaddlers is the #1 choice of hospitals to wrap your baby in blanket-like softness and premium protection mom: "oh hi baby" so all they feel is love wishing you love, sleep and play. pampers

good morning bay area. get up and get going. >> this is abc 7 mornings. good morning. friday, march 23rd. you know what's betterter than friday? >> puppies. >> national puppy day. it's a big deal here. we have a host of puppies upstairs. >> hopefully some of you will adopt them. >> there's like 20 up there right now. i get to be the first one to play with them. >> yea. >> but first, we got to do the weather. >> every seven minute or less. storm impact scale today, a 1. not a washout. showers. they'll be mainly in the north bay and spread south in the evening hours. snow level 3500 feet. breezy this afternoon. sprinkles are trying to move into the north bay but it's pretty dry out there. we'll say with my 12-hour

planner. there's a chance at 7:00. you're going to notice, oh, my, is it much cooler this morning. in the north bay, at noon, 50s. spreading south at 4:00. this evening, that's when the chance of showers are the best. let's check out a dry commute for once. >> oh, yeah. and it's friday. we're looking at light traffic volumes. we had a big problem yelled at midday when a truck clipped one of the tollbooths, kprashd acra had a fuel spill. no issues now if you're coming from the north bay. i have live doppler 7 on top of the traffic maps. maybe a couple sprinkles in the north bay. but that's it. enjoy a dry commute this morning. we'll check on drive times coming up next. >> alexis, thank you. the community will honor a marin county sheriff's deputy. >> he was just starting his life. deputy ryan zirkle died in a car crash while on duty. amy hollyfield has more. >> reporter: you can expect a lot of support for the chp from

a variety of different law enforcement agencies. as for this funeral today, the chp marin says the loss of ryan zirkle leaves a huge void in the department, saying he was very committed to helping his community here i marin county. he died in a single-vehicle crash last week on his way to a 911 call. zirkle is from the area. he graduated from san marin high school in novato. his principal fondly remembers him. >> i would see him and talk to him, ask him how he was doing in his pursuit of law enforcement. i just thought that was perfect for him. he was so happy with what he was doing. >> reporter: here's a look at the solemn procession on highway 101 as his body was taken to the funeral home last week. zirkle was 24 years old. he's survived by his parents, two brothers and his fiance. the funeral is set to start at

11:00 this morning. reporting live from san rafael, amy hollyfield, abc 7 news. and just in to our live desk, a rude awakening for a pleasant hill family this morning. a giant tree fell into their yard on that their cars parked on keith circle. part of the tree hit two cars. it's blocking the street. the family heard a loud crash at midnight and think the rain was part of the problem. they think that it weakened the tree's roots. no one was hurt and the pg&e lines are fine. they need a new car. they will remove the tree later today. let's get you a quick update on weather and traffic. you're never more than seven minutes away from your accuweather forecast. >> reggie, thank you. here's a look at the breezes. they're pretty calm about everywhere except for fairfield at 17. that's good news. when you look at the temperatures in the mid-30s t