angelica alvarez reports. >> number one, this is the first of many. >> reporter: president trump put pen to paper authorizing an estimated $60 billion in tariffs on a variety of items being imported from china. >> when they charge 25% for a car to go in and we charge 2% for their car to come into the united states, that's not good. >> reporter: the president has ordered the government to finalize a list of products to be targeted. the move is meant to punish chinese firms that benefit from unfair access to u.s. technology. >> this is a very important moment for our country in that we're dressing what is a critical -- we are what is a critical area of intellectual property. >> reporter: another tariff against aluminum and steel takes effect friday. >> the tariff actions taken by the president are necessary to defend america's essential steel and aluminum industries. >> reporter: but lawmakers on both sides of the aisle remain unconvinced. >> these tariffs pose a serious risk to our economy. they could trigger a trade war. and they may damage our relations with key allies. >> agricultu

angelica alvarez, cbs news, the white house. >>> these protesters took over a california freeway days after police shot and killed an unarmed black man, how they also disrupted an nba game tonight. >> this 4-month-old boy has a life threatening condition. tonight how a bay area sports team is trying to save his life. >> and these anti-aging exercises could make you look years younger, but how do they work? tonight our betty yu introduces he police >> closed captioning for this newscast is sponsored by living spaces. >>> a major interstate blocked in sacramento and then hundreds of people surrounded an nba arena protesting the police shooting of an unarmed black man. reporter steve large was there. >> reporter: stephontae clark led this chant outside the golden 1 center shouting out his brother's name walking through a crowd of demonstrators. hundreds came together to protest the police shooting of stephon clark, an unarmed black man shot 20 times by officers. he was found holding only a cell phone. >> we need people out here in the streets to show everyone that we actually care about

angelica alvarez, cbs news, the white house. >>> today north and south korea agreed to hold a historic summit on april 27th. it would be the third such meeting. they met on the northern side of a border village this morning. they discussed details of the meeting between north korean leader kim jong-un and south korean president moon jae-in. he met with china's leader and has planned a meeting with trump in may. >>> california officials are trying to figure out why an suv plunged off a california highway. there were no skids or brake marks and no reason to believe the crash was intentional. the parents and three adopted children were killed. three others are missing. the family gained attention in 2014 after one of their children, devonte hart, was photographed crying and hugging an officer. devonte is among the missing. >>> clark, an african-american, was killed by police in his grandmother's backyard. police say he was a suspect on the run. they thought he had a gun. he only had a cell phone. there have been almost daily protests since his death. the california attorney generalcy amon

angelica alvarez, cbs news the white house. >>> this morning, china is threatening to retaliate against the tariff hikes. it may raise tariffs on u.s. goods including pork, apples and steel pipe products produced in many of the red states that the president relied on in the election. yesterday the president authorized $60 billion on tariffs coming into the u.s. >> when they charge 25% for a car to go in and we charge 2% for their car to come into the united states, that's not good. >> fears of a trade war rocked wall street. the dow was down more than 720 points yesterday and overnight, asian market have been tumbling. >>> more trouble for president trump. a former playboy playmate says he offered her money the first time they had sex. >> i thought, does he think that i'm in this for money or why i'm here tonight or is this a normal thing? 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. >> karen mcdougal says she had a 10 month affair with mr. trump starting in 2006 a few months after his son ba