Poll: Biden leads 2020 Dem field by double digits followed by Sanders, O'Rourke

Former Vice President Joe BidenJoe BidenTrump renews culture war, putting GOP on edge Atlanta mayor says she has tested positive for COVID-19 Trump downplaying sparks new criticism of COVID-19 response MORE holds a double-digit lead over the rest of the 2020 Democratic field in a new poll released Thursday.

In the Quinnipiac University poll, Biden heads the pack with the support of 29 percent of registered Democrats and voters who lean to the left, while Sen. Bernie SandersBernie SandersMilitary madness in the age of COVID-19 Will Twitter make @RealDonaldTrump a one-term president? Judd Gregg: The coming Biden coup MORE (I-Vt.) holds a second-place ranking with the backing of 19 percent of those surveyed.

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Former Rep. Beto O'RourkeBeto O'RourkeColorado GOP Rep. Scott Tipton defeated in primary upset Clinton, Buttigieg among Democrats set to hold virtual events for Biden Redistricting: 'The next decade of our democracy is on the ballot' in November MORE (D-Texas), who announced his bid for the presidency this month following his defeat to Sen. Ted CruzRafael (Ted) Edward CruzGianforte halts in-person campaigning after wife, running mate attend event with Guilfoyle Trump administration grants funding extension for Texas testing sites Hillicon Valley: Democrats introduce bill banning federal government use of facial recognition tech | House lawmakers roll out legislation to establish national cyber director | Top federal IT official to step down MORE (R-Texas) in November's midterm elections, sits in third place in the poll with 12 percent, while Sen. Kamala HarrisKamala Devi HarrisThe Hill's Morning Report - Presented by Facebook - Trump wants schools to reopen, challenged on 'harmless' COVID-19 remark Judd Gregg: The coming Biden coup Susan Rice sees stock rise in Biden VP race MORE (D-Calif.) is in fourth with the support of 8 percent of respondents.

Meanwhile, South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegDemocratic lawmakers call for expanding, enshrining LGBTQ rights Democrats debate Biden effort to expand map against Trump The Hill's Morning Report - Presented by Facebook - Dems, GOP dig in on police reform ahead of House vote MORE (D) has surged in the polls since the announcement of his exploratory committee and was tied for fifth place with Sen. Elizabeth WarrenElizabeth WarrenTrump criticizes Redskins, Indians over potential name changes The Hill's Morning Report - Presented by Facebook - Trump wants schools to reopen, challenged on 'harmless' COVID-19 remark Judd Gregg: The coming Biden coup MORE (D-Mass.), each earning the support of 4 percent of voters.

The poll provides Democrats with some other data to be optimistic about: Fifty-three percent of those surveyed said that they would not support President TrumpDonald John TrumpCNN's Anderson Cooper: Trump's Bubba Wallace tweet was 'racist, just plain and simple' Beats by Dre announces deal with Bubba Wallace, defends him after Trump remarks Overnight Defense: DOD reportedly eyeing Confederate flag ban | House military spending bill blocks wall funding MORE in the 2020 election regardless of which Democrat wins the primary.

"Hungry for a candidate to take on President Donald Trump, Democrats and Democratic leaners put the three B's, Biden, Bernie and Beto, at the top in a race where age, race and gender take a back seat to electability and shared views," Tim Malloy, the poll's assistant director, said in the press release.

Quinnipiac's survey contacted 1,358 registered voters and has a margin of error of plus or minus 3.3 percentage points. For Democrats and Democratic-leaning voters samples, the margin of error is plus or minus 5.1 percentage points.