Compare Bernie Sanders and Joe Biden on the issues
CBS/YouGov Poll: Debate watchers believe Bernie Sanders made the best case for defeating Trump | YouGov
Polls show Biden, Sanders and Warren at top of 2020 Democratic field - CBS News
Texas primary: Bernie Sanders, Joe Biden tied, poll says | kvue.com
Why Bernie Sanders Is Electable, Too
WMUR/CNN poll: Sanders holds big lead over Clinton; Biden key factor
Yahoo News/YouGov: Biden leads Sanders ahead of Michigan primary | YouGov
Biden, Warren, Sanders stay on top; health is now an issue for Sanders: POLL - ABC News
USC Dornsife/LA Times poll: Biden is the favorite among likely voters at nearly 2:1 - Press Room USC
Sanders, Biden are neck-and-neck in new NBC/WSJ national poll
Chart: Bernie Sanders Takes the Lead | Statista
Chart: Biden Feeling the Bern | Statista
Biden leads Sanders by 16 points in post-Super Tuesday poll
New poll shows Joe Biden as the leading 2020 Democratic candidate
Bernie Sanders ahead of Joe Biden in Texas, new poll shows | FOX 5 San Diego
CNN Poll of Polls: Biden and Sanders lead national Democratic primary | CNN Politics
Saint Anselm poll: Buttigieg surges to 10 percentage point lead over Biden, Warren in NH
Poll: Biden's lead narrows ahead of South Carolina primary - YouTube
USC Dornsife/LA Times poll: Biden is the favorite among likely voters at nearly 2:1 - Press Room USC
One Year From Election, Trump Trails Biden but Leads Warren in Battlegrounds - The New York Times
Warren, Biden in virtual dead heat in Saint Anselm College poll of NH primary voters
What Super Tuesday data tells us about who voted and why | PBS NewsHour
New poll shows Bernie Sanders in the lead in California | KRON4
