08:06Newsday2020/02/20 08:06 GMT: Democrats get heated at Las Vegas debateBBC World Service Duration: 23 minutes Thu 20th Feb 2020, 08:06 on BBC World Service OnlineAvailable for over a yearListen nowLive news, business and sport from around the world. Show more GenresNewsFormatsMagazines & ReviewsBrandNewsday Source: BBC Online