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Exclusive: Warren accused Sanders in tense post-debate exchange of calling her a 'liar' on national TV
By Kyle Blaine, Jeff Zeleny & Marshall Cohen
Trump's MAGA supporters and Twitter Bernie Bros have this ugly tactic in common
By Kurt Bardella
Recap Of Last Democratic Debate Before Iowa Caucuses
By Domenico Montanaro
All coverage
At Iowa Debate, Bernie Sanders's Biggest Opponent Was CNN
By Ryan Grim, Aída Chávez & Akela Lacy
Op-Ed: Elizabeth Warren brushed off Bernie Sanders and taught a master class in handling sexism
By Virginia Heffernan
Here's what Tom Steyer said about the 'awkward moment' he witnessed between Sanders and Warren
By Paul LeBlanc
The Warren-Sanders feud just got way uglier
By Christopher Michael Cillizza
Bernie 'will play dirty': Ex-Vermont governor slams Sanders
By Natasha Korecki