Fourteen states, a third of all delegates and an emerging race between Sen. Bernie Sanders and former Vice President Joe Biden. Here's what to know about the 2020 contests.
The 38-year-old rose from being mayor of a midsize Indiana city to mounting a serious Democratic presidential run. He was the first openly gay candidate to win delegates in a presidential race.
The former vice president won by nearly 30 points in South Carolina, giving him a big claim to being the principal alternative to Bernie Sanders for the Democratic presidential nomination.
The former vice president got some promising results in polling leading into the primary this week. But even with a win, he still has lots of catching up to do to hope to win the nomination.
The Sanders campaign has made its video livestreaming a central part of its overall messaging, fundraising and organizing strategy. Here's a look behind the scenes.
The support of Rep. James Clyburn, one of the most influential African Americans in South Carolina politics, is not a surprise but hints at an effort to win over black voters.
Former Vice President Joe Biden fought to save his campaign, Vermont Sen. Bernie Sanders took fire from all sides, and more takeaways from the Democratic debate in South Carolina.