One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
Both Joe Biden and Bernie Sanders Would Beat Donald Trump in a General Election, New Poll Shows
Trump Competitive Against Candidates Not Named Biden, Sanders
Biden holds double-digit lead over Sanders nationally: poll | The Hill
UMass Amherst/WCVB Poll: African American voters seeking candidate who can beat Trump
Biden And Sanders Amp Up Criticism As Polls Show Edging Ahead In Democratic Race : NPR
Biden Boasts 16-Point Lead Over Sanders in Democratic Presidential Race - Morning Consult
NH poll shows Biden, Sanders maintaining lead as Buttigieg makes surge
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
Emerson Polling - National Poll: Sanders Tied with Biden; O'Rourke Gets Post-Announcement Bump
How Biden, Warren and Sanders fare vs. Trump in 2020 election polls
Bernie Sanders is now tied with Joe Biden Reuters poll
UH Poll: Biden, Sanders Virtually Tied In Texas – Houston Public Media
UT/TT Poll: Sanders and Biden Lead Texas Democratic Presidential Nomination Race; Trump Impeachment Trial Leaves Texans' Views Unwavering - UT News
/cdn.vox-cdn.com/uploads/chorus_asset/file/19753741/1208692873.jpg.jpg "Bernie Sanders leads Joe Biden in national ranked-choice poll — but it's close - Vox")
Bernie Sanders leads Joe Biden in national ranked-choice poll — but it's close - Vox
Texas primary: Bernie Sanders, Joe Biden tied, poll says | kvue.com
How Joe Biden became the presumptive Democratic nominee — polling analysis - CBS News
KING 5 News poll: Biden edges Sanders days before Washington presidential primary | king5.com
Very early Iowa Democratic primary poll finds Joe Biden, Bernie Sanders leading the field
How Joe Biden is Defusing Tensions With the Left | Time
Biden, Sanders Are Running Neck and Neck in Nationwide Poll - Bloomberg
New poll shows Joe Biden ahead of Bernie Sanders in Missouri presidential primary | FOX40
South Carolina primary: Joe Biden leads Bernie Sanders in NBC-Marist poll
2020 Poll: Biden, Sanders Lead Democratic Race To Take On Trump For President : NPR
Democrats see Biden and Sanders as very different ideologically | Pew Research Center
