In early primary states, 2020 Democrats court black voters

The list of Democrats running for president now exceeds 20, and the crowded field hit early primary states over the weekend. Former Vice President Joe Biden and Mayor Pete Buttigieg were in South Carolina, while Sen. Bernie Sanders, Sen. Elizabeth Warren, Sen. Amy Klobuchar and former Rep. Beto O’Rourke visited Iowa. As Yamiche Alcindor reports, race and gun control were prominent campaign topics.