Chart: Bernie Sanders Takes the Lead | Statista
Saint Anselm poll: Buttigieg surges to 10 percentage point lead over Biden, Warren in NH
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
Poll: Biden leads Sanders by 22 points – The Hill
New poll shows Joe Biden ahead of Bernie Sanders in Missouri presidential primary | FOX40
Bernie Sanders supporters not yet on board with voting for Joe Biden
US election 2020: Five charts on the Democratic race to take on Trump - BBC News
Why Bernie Sanders Is Electable, Too
Biden, Sanders Have Nearly Identical Lead Over Trump in Hypothetical Matchup
USC Dornsife/LA Times poll: Biden is the favorite among likely voters at nearly 2:1 - Press Room USC
Sanders Supporters Don't Love Joe Biden. How Much Will That Matter? - Morning Consult
Biden Way Ahead in Sunshine State | FAU Business
On Super Tuesday “Gaps” - Edison Research
UMass poll gives Joe Biden, Bernie Sanders edge in 2020 New Hampshire Democratic primary - masslive.com
New poll shows Bernie Sanders in the lead in California | KRON4
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
Sanders, Biden are neck-and-neck in new NBC/WSJ national poll
CNN Poll of Polls: Biden and Sanders lead national Democratic primary | CNN Politics
Chart: Biden Has Clear Lead Over Sanders, Trump | Statista
Biden Boasts 16-Point Lead Over Sanders in Democratic Presidential Race - Morning Consult
WMUR/CNN poll: Sanders holds big lead over Clinton; Biden key factor
Polls show Biden, Sanders and Warren at top of 2020 Democratic field - CBS News
Joe Biden holds the largest lead over President Donald Trump in battleground states | YouGov
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
