South Carolina

A 32-year-old law makes it illegal for teachers in that state to speak about queer relationships, unless it's about sexually transmitted infections. But a federal lawsuit could change that.

The crucial win has the potential to resurrect Joe Biden's campaign after a series of poor finishes in other early voting states. The Associated Press projected the former vice president's victory.

A lot is on the line in the 2020 primary debate. It might be the last chance for moderates to slow Bernie Sanders' momentum. And who comes out better — Joe Biden or Michael Bloomberg? Here's a guide.

Sen. Bernie Sanders won narrowly, but can he expand his base? Pete Buttigieg again did well, but in another largely white state. And the story of the night was Sen. Amy Klobuchar's third-place finish.