‘None of the above’ tops list of potential 2020 Dems, poll shows

With the 2018 midterms in the rearview mirror, several Democrats are gearing up for the 2020 presidential contest. But so far, no Democrat has attracted broad support from the party's base, according to a new Hill.TV American Barometer poll.

The survey, conducted among 680 registered voters who identified themselves as Democrats or independents, found that "none of the above" was the most popular choice among potential 2020 challengers to President TrumpDonald John TrumpPapadopoulos on AG's new powers: 'Trump is now on the offense' Pelosi uses Trump to her advantage Mike Pence delivers West Point commencement address MORE.

Thirty percent of the sample said they would prefer that "none of the above" become the Democratic nominee when asked to choose among former Vice President Joe BidenJoe BidenJames Carville: Biden represents 'stability' not 'generational change' Trump's misspelling of Biden's name trends on Twitter Trump says 'I have confidence' after past North Korea missile tests MORE, Massachusetts Sen. Elizabeth WarrenElizabeth Ann WarrenTrump defense pick expected to face tense confirmation 2020 Democrats target federal ban on abortion funding Gillibrand seizes on abortion debate to jump-start campaign MORE (D), Vermont Sen. Bernie SandersBernie SandersJames Carville: Biden represents 'stability' not 'generational change' Ocasio-Cortez, progressives trash 'antisemitic' Politico illustration of Bernie Sanders 2020 Democrats target federal ban on abortion funding MORE (I), New Jersey Sen. Cory BookerCory Anthony Booker2020 Democrats target federal ban on abortion funding Gillibrand seizes on abortion debate to jump-start campaign 2020 hopeful John Delaney unveils T climate plan MORE (D), California Sen. Kamala HarrisKamala Devi HarrisSan Francisco police chief apologizes for raid on journalist's home Gillibrand seizes on abortion debate to jump-start campaign Senate Democrats to House: Tamp down the impeachment talk MORE (D), former New York City Mayor Michael Bloomberg and former Secretary of State Hillary ClintonHillary Diane Rodham Clinton2020 Democrats target federal ban on abortion funding Hillary Clinton slams Trump for spreading 'sexist trash' about Pelosi Gillibrand seizes on abortion debate to jump-start campaign MORE.

Twenty-five percent of respondents said Biden would be their preferred nominee. Sanders, who ran in the Democratic presidential primary in 2016, came in second with 18 percent.

Twelve percent of the independents and Democrats surveyed picked Clinton, Sanders's one-time presidential rival, who signaled a willingness to run again, saying in an October interviewer that she would still "like to be president."

Other candidates attracted even less support. Harris, Bloomberg and Warren were each the top choice for just 4 percent of respondents.

Warren had been regarded by some progressive advocates as a strong candidate, but she may have lost some support after provoking controversy by releasing a DNA test to address persistent questions about her claims of Native American heritage. A Morning Consult/Politico poll from October found that just 34 percent of Democratic respondents believed Warren's actions were "appropriate."

The American Barometer survey was conducted on Nov. 5-6 among 680 registered voters by the HarrisX polling company. The sampling margin of error is 3.76 percentage points.

— Matthew Sheffield