Hill Democratic aides remain conflicted between Warren and Biden - Roll Call
Memo: Favorability of Major Political Figures and Organizations in Battleground Districts
Warren, Biden in virtual dead heat in Saint Anselm College poll of NH primary voters
Trump falls into virtual tie with Biden, Warren in Arizona poll
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
Most Democrats Are Excited by 'Several' 2020 Candidates - Not Just Their Top Choice | Pew Research Center
Warren Leads Tight Iowa Race as Biden Fades, Poll Finds - The New York Times
/cdn.vox-cdn.com/uploads/chorus_asset/file/19218192/Screen_Shot_2019_09_20_at_3.04.06_PM.png "Election 2020: Biden, Sanders, and Warren poll best against Trump - Vox")
Election 2020: Biden, Sanders, and Warren poll best against Trump - Vox
Exclusive Polling: Ahead of Super Tuesday, Texans Under 40 Favor Sanders, Biden and Warren | Tufts Now
Biden, Warren and Sanders top 3 national polls - POLITICO
Biden Up 15. Warren Up 7. Are Primary Polls Too Far Apart? | FiveThirtyEight
Democratic debate: Biden, Warren and Sanders spar over healthcare - BBC News
Joe Biden holds lead in national poll: Is it a firewall against Iowa, New Hampshire losses? - Los Angeles Times
Biden Up 15. Warren Up 7. Are Primary Polls Too Far Apart? | FiveThirtyEight
Is Warren Becoming a Stronger 2020 Candidate Than Biden? | Vanity Fair
KQED Poll: Bernie Sanders Dominates the Field in California | KQED
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
Biden holds steady, Warren slips in national poll as Iowa caucuses approach - ABC News
FAU Poll Finds Warren Cutting Into Biden's Lead in Florida, Where Trump Narrowly Leads in Matchups with Democrats | FAU Business
Trump Competitive Against Candidates Not Named Biden, Sanders
Is Warren Becoming a Stronger 2020 Candidate Than Biden? | Vanity Fair
/cdn.vox-cdn.com/uploads/chorus_asset/file/19229225/Screen_Shot_2019_09_24_at_3.04.58_PM.png "Who is leading new Democratic 2020 polls? Warren, Biden and Sanders - Vox")
Who is leading new Democratic 2020 polls? Warren, Biden and Sanders - Vox
New Democratic Polls Offer Encouragement to Biden, Warren, and Sanders | The New Yorker
Joe Biden leads Democratic 2020 race, flurry of polls show - Los Angeles Times
For Biden VP, Black Democrats are torn between Harris and Warren
