connect with young voters, it's still his mantra. >> let's go, joe. >> they have this funny feeling cale boggswasn't into it. >> then we snuck up on him. boggs, this was the nixon landslide. everybody expected no democrat to win and that was the truth. >> we won by a rousing 3100 votes. >> reporter: i'm sure the president-elect is very relieved to have secured a wider margin in the 2020 presidential race to the tune of more than 5 million votes. >> gloria, thank you. you can learn more about joe biden's life and career in our cnn documentary, joe biden's long journey. that airs tonight at 10 p.m. eastern right here on cnn. >>> still to come, the u.s. reported another day of record covid-19 cases and hospitalizations. experts say hospitals may have to start rationing care. what does that mean? dr. saju matthew is with us next. everyday you're eating acidic foods; you're constantly weakening that enamel structure. pronamel repair allows more minerals to penetrate deep into the enamel layer and it repairs it. it is pretty phenomenal. but i'm not a new customer. a deal on a smartphone, well, actua

cale boggs was loved. i mean, he was loved. >> once again, biden asked valerie to run the show. >> i remember saying to him, joey, i can't run a statewide campaign. i don't know how to do that. remember, he's 28, 27, i'm 25, 26. he said don't worry about it, valerie, we'll figure it out. >> she reached out to a local democratic party activist ted kaufman. >> so i went down and talked to him. so you're running on civil rights. you're running on environment. you're running on tax reform. and those are really good issues. silence. i said but i don't think you have a chance at winning. >> you said what? >> i don't think you have a chance of winning. you don't have a chance. cale boggs is like -- cale boggs is incredible. you've been in this for two years. you look like you're 25 years old. this is a race to run in order to make these issues you care about. i say you can do that, but there is no chance you can win. >> and his reaction to that was? >> well, just come and help me. just come and help me. we'll see

behind in the polls, facing a werful opponent: united states senator cale boggs, an ally of presidentrd nixonk >> joe biden me about getting involved in his campaign. i stard off by telling him that "there's no way you can win." t cale boggs w candidate for the senate. he'd been a two-term congressman. two-term governor. two-term senator. he was beloved arod the state. so i said that he couldn't win. >> "audacious" is a good term to applto biden back then. this is a guy who wasn't yet old enough to hold the seat. >> narrar: it was a time of crisis in the country. the vietnam war had divided americans... >> opposition to the war in vietnam has set off monstrations in several major cities. n rator: ...igniting social unrest. in delaware, racial tensions boiled over. >> the national guard was called t in several cities to put down riots. one of these cities was wilmington, delaware. >> narrator: black residents were angry. joe biden saw an opportunity to draw on his personal experience with race-- back when he was 19, working at an inner-city pool. >> he was a lifeguard. he was one of th

cale boggs was the candidate for the senate.te he'd been a tw congressman. two-term governor.erm senator. he was beloved around the state. so i said that he couldn't win. >> "audacious" is a good term to apply to biden back then. this is a guy who wasn't yet old enough to hold the seat. >> narrator: it was a time of crisis in the country. the vietnam war had divided americans... >> opposition to the war in vietnam has set off demonstrations in several mar cities. >> narrator: ...igniting social unrest. in delaware, racial tensions boiled over. >> the national guard was callec out in severalies to put down rts. one of these cities wasin on, delaware. >> narrator: black residents were angry.bi jon saw an opportunity to draw on his personal experience with rac- back when he was 19, working at an inner-city pool. >> he was a lifeguard.he as one of the two white guys. he was a tall, slim, uh... young-looking, good-looking, elvis presley-looking kind of guy.kn >> that's how he g some of the guys who were in the gangs. he just seemed to have natural instinct for getting to know peopl