Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) leads the Democratic presidential field in a new Emerson poll, followed by former Vice President Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE and South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice Hillicon Valley: FBI, DHS warn that foreign hackers will likely spread disinformation around election results | Social media platforms put muscle into National Voter Registration Day | Trump to meet with Republican state officials on tech liability shield MORE.

The survey found that Sanders, who has come in second behind Biden in most polling, is leading with 29 percent. Biden, who has not yet announced a 2020 bid, is in second place with 24 percent, followed by Buttigieg at 9 percent.

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Sen. Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (D-Calif.) and former Rep. Beto O’Rourke (D-Texas) are tied for fourth place at 8 percent, followed by Sen. Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.) at 7 percent.

The poll is one of several showing the meteoric rise of Buttigieg, despite his relatively low name recognition just a few months ago. An Iowa poll last week had him in third place, behind Biden and Sanders.

“While still early in the nominating process, it looks like Mayor Pete is the candidate capturing voters’ imagination,” Spencer Kimball, director of Emerson Polling, said in a statement Monday. “The numbers had him at 0% in mid-February, 3% in March and now at 9% in April.”

Meanwhile, Kimball said, Biden has lost some support in recent weeks. He led Sanders, 27 percent to 17 percent, in February before dropping to 26 percent in March, tying with Sanders. In recent weeks, Biden has been dogged by allegations from several women who say he touched them inappropriately at public events, though half of Democratic voters have said the allegations will not affect their vote.

Should Biden ultimately decide against a presidential bid, Sanders would be in an even stronger position, according to the poll, which finds the Vermont senator is the second choice for 31 percent of Biden's supporters. Buttigieg is the second choice for 17 percent of Biden backers, followed by O’Rourke with 13 percent.

The poll, conducted April 11–14, surveyed 356 registered voters nationwide and has a margin of error of 5.2 percentage points.