‘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 TrumpGOP senators balk at lengthy impeachment trial Warren goes local in race to build 2020 movement 2020 Democrats make play for veterans' votes 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 BidenGOP senators balk at lengthy impeachment trial 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE, Massachusetts Sen. Elizabeth WarrenElizabeth Ann WarrenWarren goes local in race to build 2020 movement 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE (D), Vermont Sen. Bernie SandersBernie Sanders2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (I), New Jersey Sen. Cory BookerCory Anthony BookerGOP senator blasts Dem bills on 'opportunity zones' Booker on Erdoğan: We should not be 'rolling out the red carpet for a ruthless authoritarian' The Hill's Morning Report - Diplomats kick off public evidence about Trump, Ukraine MORE (D), California Sen. Kamala HarrisKamala Devi HarrisWarren goes local in race to build 2020 movement 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (D), former New York City Mayor Michael Bloomberg and former Secretary of State Hillary ClintonHillary Diane Rodham Clinton2020 Democrats make play for veterans' votes The Memo: Democrats confront prospect of long primary Manafort sought to hurt Clinton 2016 campaign efforts in key states: NYT 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