Tulsi Gabbard

Elizabeth Warren says she would serve as Joe Biden's running mate. Whether gender blocked her own path to the nomination is a key question for many Democrats — and a complicated one.

The Democratic presidential field started out as the most diverse ever, and the largest in at least 40 years. It's since winnowed down to one.

The Iraq war veteran, who has stirred controversy within her own party, failed to take off in the Democratic presidential primary.

The Democratic presidential primary has moved west for the Nevada caucuses. Follow NPR's live coverage.

Ten candidates are on stage in Atlanta on Wednesday night — amid an impeachment inquiry into President Trump and a shifting field. NPR reporters have live analysis and fact checks of their remarks.

The stakes are creeping higher as early primaries and caucuses get nearer. Ten candidates will be on the stage in Atlanta beginning at 9 p.m. ET.

The requirements for the Nov. 20 debate, hosted by MSNBC and The Washington Post, were stricter than they have been — and December's bar is even higher.

Three new and soon-to-be voters at Putnam City High School in Oklahoma City share their thoughts on 2020, impeachment and the media.

All the candidates oppose President Trump's recent troop withdrawal. But the two military veterans on the stage revealed a lack of consensus over how the U.S. should move forward in the Middle East.

The Oct. 15 debate will feature more candidates together on one night than in previous months. Billionaire activist Tom Steyer and Rep. Tulsi Gabbard will join 10 candidates who appeared in September.