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Democratic polls 2020: Elizabeth Warren rises as Joe Biden clings to delegate edge — CBS News Battleground Tracker
By Fred Backus, Anthony Salvanto & Kabir Khanna
Which Candidates Got the Most Speaking Time in the Democratic Debate (Published 2019)
By Jasmine C. Lee, Jugal Patel & Weiyi Cai
Elizabeth Warren: Democrats worry about electability against Trump
By Ledyard King, Sarah Elbeshbishi & Marco della Cava
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
The third Democratic debate: Live updates
By Veronica Rocha, Meg Wagner & Amanda Wills
Democrats clash on health care and immigration in third debate
By Kathryn Watson & Grace Segers
Castro Questions Biden's Memory at Debate: 'Are You Forgetting What You Said Two Minutes Ago?' (Published 2019)
By Nick Corasaniti
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
3rd Democratic debate: Candidates clashed on health care, immigration and more
By Benjamin Siu, Kendall Karson & John Verhovek