Which Democrats are running for president in 2020, and what do they want?

Senator Cory Booker is the most recent Democrat to jump into the 2020 presidential race. Eight so far have announced they’re planning to run. In addition to Corey Booker, there’s California Senator Kamala Harris, New York Senator Kirsten Gillibrand, Massachusetts Senator Elizabeth Warren, former San Antonio mayor Julián Castro, and more. We look at how the race is shaping up.