Biden Boasts 16-Point Lead Over Sanders in Democratic Presidential Race - Morning Consult
Saint Anselm poll: Buttigieg surges to 10 percentage point lead over Biden, Warren in NH
Bloomberg qualifies for debate, Sanders leads ahead of Nevada caucuses | PBS NewsHour
NPR/PBS NewsHour/Marist Poll: Biden, Sanders Lead 2020 Democratic Race | WUSF Public Media
Sanders, Biden are neck-and-neck in new NBC/WSJ national poll
Bernie Sanders Pulls Away From Pack in California | KQED
Biden wins Arizona primary in apparent three-state sweep of Sanders - Cronkite News - Arizona PBS
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
It's not just the polls that show Biden and Sanders leading the primary | CNN Politics
Democratic voters who watched debate say Sanders impressed them most: CBS News poll - YouTube
Sanders Takes Lead, Buttigieg and Biden Vie For Second | Monmouth University Polling Institute | Monmouth University
Poll: Biden leads 2020 Democrats, Warren surges to third behind Sanders | The Hill
March 10th: Another Good Night for Joe Biden - Edison Research
Polls show Biden, Sanders and Warren at top of 2020 Democratic field - CBS News
Election Update: Biden Holds A Narrow Lead Over Sanders In South Carolina (We Think) | FiveThirtyEight
Why Bernie Sanders Is Electable, Too
Bernie Sanders ahead of Joe Biden in Texas, new poll shows | KXAN Austin
Biden And Sanders Amp Up Criticism As Polls Show Edging Ahead In Democratic Race : NPR
CNN Poll of Polls: Biden and Sanders lead national Democratic primary | CNN Politics
Biden Way Ahead in Sunshine State | FAU Business
USC Dornsife/LA Times poll: Biden is the favorite among likely voters at nearly 2:1 - Press Room USC
Poll: Biden's lead narrows, Warren rises, Sanders third, Buttigieg up
Sanders Seizes Lead in Volatile Iowa Race, Times Poll Finds - The New York Times
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
