Poll: Biden leads 2020 Democrats by 2 points as Warren surges

Poll: Biden leads 2020 Democrats by 2 points as Warren surges
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Former Vice President Joe BidenJoe BidenOn The Money: Economists flabbergasted after Congress leaves with no deal | Markets rise as the economy struggles | Retail sales slow in July Congress exits with no deal, leaving economists flabbergasted Trump touts NYC police union endorsement: 'Pro-cop all the way' MORE holds a slim 2-point lead in the crowded Democratic presidential primary as he fends off a growing challenge from Sen. Elizabeth WarrenElizabeth WarrenOvernight Energy: Major oil companies oppose Trump admin's methane rollback | Union files unfair labor practice charge against EPA USPS inspector general reviewing DeJoy's policy changes Former Obama speechwriter Favreau: 'Hilarious' some media outlets calling Harris a moderate MORE (D-Mass.), according to a new Emerson College poll.

Biden gets the support of 25 percent of registered voters, a 6-point drop from the same poll in August. Meanwhile, Warren has surged to 23 percent support, an 8-point bump since last month’s survey. Sen. Bernie SandersBernie SandersFormer Obama speechwriter Favreau: 'Hilarious' some media outlets calling Harris a moderate Trump to counter DNC with travel to swing states Progressives look to flex their muscle in next Congress after primary wins MORE (I-Vt.) rounds out the top three with 22 percent, a 2-point fall from August. 

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Entrepreneur Andrew YangAndrew YangPoll: Majority of voters now say the government should have a universal basic income program The Hill's Campaign Report: Trump threatens Postal Service funding l Biden proposes national mask mandate l Democratic convention takes shape Bloomberg to speak at Democratic convention MORE comes in at fourth place at 8 percent, beating out South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegThe Hill's Morning Report - Presented by Facebook - The choice: Biden-Harris vs. Trump-Pence California Democrats back Yang after he expresses disappointment over initial DNC lineup Obamas, Clintons to headline Biden's nominating convention MORE with 6 percent and Sen. Kamala HarrisKamala HarrisOn The Money: Economists flabbergasted after Congress leaves with no deal | Markets rise as the economy struggles | Retail sales slow in July Trump touts NYC police union endorsement: 'Pro-cop all the way' USPS workers union endorses Biden, citing threat to postal service 'survival' MORE (D-Calif.) at 4 percent. 

No other candidate polls higher than 2 percent.

The poll is one of several showing a tightening in the race among the top three candidates, while the rest of the 2020 contenders are relegated to the middle or bottom tiers. However, there is still hope for candidates hoping to improve their standing or overtake Biden — more than 52 percent of respondents said there is a chance they could change their minds.

Biden gets the support of 42 percent of voters aged 50 or older, while Sanders receives the support of 28 percent of voters under 50. Warren has 23 percent support from each group.

Among voters who backed Sanders’s insurgent 2016 primary against Hillary ClintonHillary Diane Rodham ClintonMcGrath reshuffles campaign in home stretch to Senate election Appeals court blocks Hillary Clinton deposition on private email server What Biden must do to keep his lead and win MORE, 37 percent still support him, while 23 percent back Warren, 10 percent support Biden and 9 percent back Yang.

Looking ahead to the general election, Warren and Biden are the Democratic contenders beating Trump, both by slim margins. Warren holds a 51-49 percent lead over the president, while Biden beats Trump by a 50-49 percent margin. Warren and Trump were tied in August’s poll, while Biden had an 8-point advantage last month.

The Emerson College poll surveyed 1,019 registered voters from Sept. 21 to Sept. 23 and has a margin of error of 3 percentage points.