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

Former Vice President Joe BidenJoe Robinette BidenButtigieg on Trump tweets: 'I don't care' Buttigieg: The future 'is personal' for me Donald Trump, president for life? We need term limits now 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 SandersButtigieg defends appearing on Fox News: Many Americans don't hear Dems' message Buttigieg: The future 'is personal' for me Donald Trump, president for life? We need term limits now 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'RourkeTrump hits Fox News for 'wasting airtime' with coverage of Buttigieg Overnight Health Care — Presented by Campaign for Accountability — Momentum builds for federal laws enshrining abortion rights | Missouri lawmakers approve bill banning abortions at 8 weeks | Warren unveils plan to protect abortion rights Overnight Energy: Dems dismiss Interior chief's work calendars as 'fake' | Buttigieg climate plan includes carbon tax | Poll finds growing number say climate is crucial 2020 issue MORE (D-Texas), who announced his bid for the presidency this month following his defeat to Sen. Ted CruzRafael (Ted) Edward Cruz Eye-popping number of Dems: I can beat Trump 'SleepyCreepy Joe' and 'Crazy Bernie': Trump seeks to define 2020 Dems with insults The Hill's Morning Report - Presented by Pass USMCA Coalition - Restrictive state abortion laws ignite fiery 2020 debate MORE (R-Texas) in November's midterm elections, sits in third place in the poll with 12 percent, while Sen. Kamala HarrisKamala Devi HarrisButtigieg defends appearing on Fox News: Many Americans don't hear Dems' message De Blasio pitches himself as tough New Yorker who can take on 'Don the con' Buttigieg condemns 'voices on Fox' for spreading 'fear' and 'lies' ahead of town hall appearance MORE (D-Calif.) is in fourth with the support of 8 percent of respondents.

Meanwhile, South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegButtigieg jokes about holding town hall same night as 'Game of Thrones' finale Buttigieg defends appearing on Fox News: Many Americans don't hear Dems' message Buttigieg on Trump tweets: 'I don't care' MORE (D) has surged in the polls since the announcement of his exploratory committee and was tied for fifth place with Sen. Elizabeth WarrenElizabeth Ann WarrenButtigieg jokes about holding town hall same night as 'Game of Thrones' finale Buttigieg defends appearing on Fox News: Many Americans don't hear Dems' message Warren offers to help Twitter user with her love life 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 TrumpTrump: 'I will not let Iran have nuclear weapons' Rocket attack hits Baghdad's Green Zone amid escalating tensions: reports Buttigieg on Trump tweets: 'I don't care' 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.