All coverage
Democratic Debate: 'Medicare For All' Plans Divide 2020 Candidates
By Danielle Kurtzleben
Elizabeth Warren rises as Joe Biden clings to delegate edge — CBS News Battleground Tracker
By Fred Backus, Anthony Salvanto & Kabir Khanna
3rd Democratic debate: Candidates clashed on health care, immigration and more
By Benjamin Siu, Kendall Karson & John Verhovek
Castro Questions Biden's Memory at Debate: 'Are You Forgetting What You Said Two Minutes Ago?' (Published 2019)
By Nick Corasaniti
Biden is labeled a moderate. But his agenda is far more liberal than Hillary Clinton’s.
By Alex Roarty
Why It’s Time for Joe to Go
By Jamil Smith
This has become the central dividing line in the Democratic presidential race
By Ronald Brownstein
Julián Castro says attack against Biden during Democratic debate was not personal
By Veronica Stracqualursi
The third Democratic debate: Live updates
By Meg Wagner, Veronica Rocha & Amanda Wills
Third Democratic Debate: The Top 10 on One Stage (Published 2019)
By Shane Goldmacher & Adriana Ramic
Read Joe Biden's baffling debate answer about record players
By Zack Beauchamp
Elizabeth Warren leads Joe Biden in ranked-choice poll
By Andrew Prokop & Christina Animashaun
Democratic debate winners and losers: September 2019
By Zack Beauchamp, Dylan Matthews & Ian Millhiser