Poll: Biden holds 7-point lead over 2020 Democratic field

Former Vice President Joe BidenJoe BidenTrump says he doesn't want NYT in the White House Warren to protest with striking Chicago teachers Schiff punches back after GOP censure resolution fails MORE holds a 7-point lead over a crowded field of Democratic presidential candidates in a new poll. 

The Emerson poll found that 34 percent of Democratic primary voters surveyed support Biden, who is trailed by Sen. Bernie SandersBernie SandersWarren to protest with striking Chicago teachers Sanders: 'Outrageous' to suggest Gabbard 'is a foreign asset' Democratic strategist: Sanders seeking distance from Warren could 'backfire' MORE (I-Vt.) at 27 percent. Sen. Elizabeth WarrenElizabeth Ann WarrenWarren to protest with striking Chicago teachers Overnight Health Care — Presented by Partnership for America's Health Care Future — Four companies reach 0M settlement in opioid lawsuit | Deal opens door to larger settlements | House panel to consider vaping tax | Drug pricing markup tomorrow On The Money: Trump dismisses 'phony Emoluments Clause' after Doral criticism | Senate Dems signal support for domestic spending package | House panel to consider vaping tax MORE (D-Mass.) had 14 percent support, followed by Sen. Kamala HarrisKamala Devi HarrisClinton attacks on Gabbard become flashpoint in presidential race Poll: Biden holds 10-point lead nationally over Warren Trump declines to participate in Weather Channel 2020 climate change special MORE (D-Calif.) with 7 percent, South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegSanders: 'Outrageous' to suggest Gabbard 'is a foreign asset' Hillicon Valley: Facebook removes Russian, Iranian accounts trying to interfere in 2020 | Zuckerberg on public relations blitz | Uncertainty over Huawei ban one month out Clinton attacks on Gabbard become flashpoint in presidential race MORE (D) with 6 percent and Sen. Cory BookerCory Anthony BookerPoll: Biden holds 10-point lead nationally over Warren Trump declines to participate in Weather Channel 2020 climate change special Bennet: Warren 'not being honest about' her 'Medicare for All' plan MORE (D-N.J.) with 3 percent. 

The other candidates polled at 1 percent or lower. A majority of respondents — 56 percent — said they might change their vote, and 85 percent said they planned to watch the upcoming Democratic debates.

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“Similar to our other polls, Biden and Sanders voters are the most loyal with 50% to 55% saying they are set on their candidates," said Emerson Poll Director Spencer Kimball in a statement. 

"Comparatively, 33% of Warren, 18% of Harris and 17% of Buttigieg voters say they will stick with their current choices, this suggests that about 30% of the Democratic electorate are spoken for and another 30% leaning toward the top two candidates as of now leaves a narrow lane for another candidate to grab a plurality of the vote,” Kimball added.  

Researchers collected data between June 21 and 24 and the responses of Democratic primary voters have a 4.5 percentage point margin of error. 

More than two dozen people are vying for the 2020 Democratic presidential nomination. Twenty of them will participate in the first Democratic debates this week.