‘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 TrumpAvenatti ‘still considering’ presidential run despite domestic violence arrest Mulvaney positioning himself to be Commerce Secretary: report Kasich: Wouldn’t want presidential run to ‘diminish my voice’ 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 BidenJoseph (Joe) Robinette BidenAvenatti ‘still considering’ presidential run despite domestic violence arrest Election Countdown: Florida Senate race heads to hand recount | Dem flips Maine House seat | New 2020 trend - the 'friend-raiser' | Ad war intensifies in Mississippi runoff | Blue wave batters California GOP Democrats huddle for 2020 ‘friend-raisers’ MORE, Massachusetts Sen. Elizabeth WarrenElizabeth Ann WarrenAvenatti ‘still considering’ presidential run despite domestic violence arrest Warren congratulates former student and researcher on election to Congress Illinois New Members 2019 MORE (D), Vermont Sen. Bernie SandersBernard (Bernie) SandersAvenatti ‘still considering’ presidential run despite domestic violence arrest Sanders rolls out bill aimed at getting Walmart to raise wages Left wants a vote on single-payer bill in new Congress MORE (I), New Jersey Sen. Cory BookerCory Anthony BookerAvenatti ‘still considering’ presidential run despite domestic violence arrest Senators introduce Trump-backed criminal justice bill Election Countdown: Florida Senate race heads to hand recount | Dem flips Maine House seat | New 2020 trend - the 'friend-raiser' | Ad war intensifies in Mississippi runoff | Blue wave batters California GOP MORE (D), California Sen. Kamala HarrisKamala Devi HarrisAvenatti ‘still considering’ presidential run despite domestic violence arrest Election Countdown: Florida Senate race heads to hand recount | Dem flips Maine House seat | New 2020 trend - the 'friend-raiser' | Ad war intensifies in Mississippi runoff | Blue wave batters California GOP Human Rights Campaign chief to leave organization next year MORE (D), former New York City Mayor Michael Bloomberg and former Secretary of State Hillary ClintonHillary Diane Rodham ClintonDemocrat Katie Porter unseats GOP's Mimi Walters Former Facebook security chief: 'I failed to prepare my employer' on Russian disinformation Rand Paul: Facebook must 'convince conservatives they're not the enemy' 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