‘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 TrumpTrump directed Cohen to lie to Congress about plans to build Trump Tower in Moscow during 2016 campaign: report DC train system losing 0k per day during government shutdown Senate Republicans eye rules change to speed Trump nominees 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 BidenLosing the fight against corruption and narco-trafficking in Guatemala Group aiming to draft Beto O’Rourke unveils first 2020 video Why Joe Biden (or any moderate) cannot be nominated MORE, Massachusetts Sen. Elizabeth WarrenElizabeth Ann WarrenOn The Money: Shutdown Day 27 | Trump fires back at Pelosi by canceling her foreign travel | Dems blast 'petty' move | Trump also cancels delegation to Davos | House votes to disapprove of Trump lifting Russia sanction Group aiming to draft Beto O’Rourke unveils first 2020 video The Hill’s 12:30 Report: Day 27 of the shutdown | Cohen reportedly paid company to rig online polls, boost his own image | Atlantic publishes ‘Impeach Donald Trump’ cover story MORE (D), Vermont Sen. Bernie SandersBernard (Bernie) SandersWomen's March plans 'Medicare for All' day of lobbying in DC Group aiming to draft Beto O’Rourke unveils first 2020 video Why Joe Biden (or any moderate) cannot be nominated MORE (I), New Jersey Sen. Cory BookerCory Anthony BookerWe need action on personal cybersecurity Gillibrand and Booker play 'How Well Do You Know Your Co-Worker' game amid 2020 speculation The Hill's Morning Report — Trump’s attorney general pick passes first test MORE (D), California Sen. Kamala HarrisKamala Devi HarrisOcasio-Cortez's first House floor speech becomes C-SPAN's most-viewed Twitter video Kamala Harris says her New Year's resolution is to 'cook more' Harris to oppose Trump's attorney general nominee MORE (D), former New York City Mayor Michael Bloomberg and former Secretary of State Hillary ClintonHillary Diane Rodham ClintonDershowitz to The Atlantic: Do not violate Constitution to safeguard it Why Joe Biden (or any moderate) cannot be nominated GOP Rep. Tom Marino resigns from Congress 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