Election Update: Biden Holds A Narrow Lead Over Sanders In South Carolina (We Think) | FiveThirtyEight
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
Sanders, Biden are neck-and-neck in new NBC/WSJ national poll
Poll: Biden leads 2020 Democrats, Warren surges to third behind Sanders | The Hill
Biden, Warren and Sanders top 3 national polls - POLITICO
Biden Way Ahead in Sunshine State | FAU Business
Sanders Takes Lead, Buttigieg and Biden Vie For Second | Monmouth University Polling Institute | Monmouth University
Suffolk/Globe poll finds Sanders, Warren, Buttigieg, Biden in tight race in N.H. - The Boston Globe
Bernie Sanders ahead of Joe Biden in Texas, new poll shows | KXAN Austin
Polls show Biden, Sanders and Warren at top of 2020 Democratic field - CBS News
March 10th: Another Good Night for Joe Biden - Edison Research
Trump Competitive Against Candidates Not Named Biden, Sanders
Poll: Biden's lead narrows, Warren rises, Sanders third, Buttigieg up
Why Bernie Sanders Is Electable, Too
UT/TT Poll: Sanders and Biden Lead Texas Democratic Presidential Nomination Race; Trump Impeachment Trial Leaves Texans' Views Unwavering - UT News
Sanders soars to double-digit lead in new poll of Democrats; Biden slumps | The Times of Israel
Biden Boasts 16-Point Lead Over Sanders in Democratic Presidential Race - Morning Consult
Bernie Sanders is now tied with Joe Biden Reuters poll
NPR/PBS NewsHour/Marist Poll: Biden, Sanders Lead 2020 Democratic Race | WUSF Public Media
Poll: Bernie, Warren surge to tie Biden atop Democratic field - POLITICO
Bloomberg qualifies for debate, Sanders leads ahead of Nevada caucuses | PBS NewsHour
KING 5 News poll: Biden edges Sanders days before Washington presidential primary | king5.com
Bernie Sanders Pulls Away From Pack in California | KQED
Biden And Sanders Amp Up Criticism As Polls Show Edging Ahead In Democratic Race : NPR
Poll: Joe Biden, Bernie Sanders Lead in Nevada
Latino poll: Biden and Sanders are favorites, racism a concern
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
Sanders Seizes Lead in Volatile Iowa Race, Times Poll Finds - The New York Times
CNN Poll of Polls: Biden and Sanders lead national Democratic primary | CNN Politics
