The Democratic presidential nomination process begins tomorrow in South Carolina, and President Biden is running largely uncontested. But his campaign is expending significant resources in the race to try to reach a crucial part of his base: Black voters.Maya King, a politics reporter at The Times, explains.Guest: Maya King, a politics reporter for The New York Times.Background reading: In South Carolina, Mr. Biden is trying to persuade Black voters to reject Trump.South Carolina was the home of Mr. Biden’s political resurrection in the primaries four years ago, and it is reaping the rewards.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.