Biden edges higher atop field of 2020 Democrats: poll

Former Vice President Joe BidenJoe BidenWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' Bolton told Barr he was concerned Trump did favors for autocrats: report Dershowitz: Bolton allegations would not constitute impeachable offense MORE increased his lead atop a crowded field of Democratic presidential candidates by 2 points, a new poll finds.

Biden now has the support of 33 percent of Democratic primary voters across the nation, according to the Morning Consult survey, 13 points above the next-most popular candidate, Sen. Bernie SandersBernie SandersGOP Iowa senator suggests Trump impeachment defense could hurt Biden at caucuses On The Money: Stocks close with steep losses driven by coronavirus fears | Tax season could bring more refund confusion | Trump's new wins for farmers may not undo trade damage Sanders launches first TV ads in Nevada MORE (I-Vt.)

Rounding out the top five are Sen. Elizabeth WarrenElizabeth Ann WarrenWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' On The Money: Stocks close with steep losses driven by coronavirus fears | Tax season could bring more refund confusion | Trump's new wins for farmers may not undo trade damage Overnight Energy: Sanders scores highest on green group's voter guide | Trump's latest wins for farmers may not undo trade damage | Amazon employees defy company to speak on climate change MORE (D-Mass.) at 15 percent, followed by Sen. Kamala HarrisKamala Devi HarrisBiden leads 2020 pack in congressional endorsements Harris on 2020 endorsement: 'I am not thinking about it right now' Panel: Is Kamala Harris a hypocrite for mulling a Joe Biden endorsement? MORE (D-Calif.) at 8 percent and South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegOvernight Energy: Sanders scores highest on green group's voter guide | Trump's latest wins for farmers may not undo trade damage | Amazon employees defy company to speak on climate change Sanders surges to first in New Hampshire: poll Majority sees no ties between business experience and political success MORE at 5 percent, the poll shows.

Among early voters in Iowa, New Hampshire, South Carolina or Nevada, Biden maintains a 16-point lead over Sanders, who is followed by Warren, Harris and billionaire Tom SteyerTom Fahr SteyerSouth Carolina woman behind popular Obama slogan says she backs Steyer Overnight Energy: Sanders scores highest on green group's voter guide | Trump's latest wins for farmers may not undo trade damage | Amazon employees defy company to speak on climate change Steyer would have owed M more in taxes under lawmakers' proposal: liberal group MORE, according to Morning Consult.

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The results come as Biden’s electability argument is showing signs of weakness, with a survey from Monmouth University on Monday showing the former vice president’s support slipping to below 20 percent. The results mark a double-digit decline from its last poll in June and put him in a three-way tie nationally with Sanders and Warren.

Democrats have cited the poll as evidence Biden isn’t suitable to earn the party’s presidential nomination and isn’t the candidate best equipped to defeat President TrumpDonald John TrumpWarren: Dershowitz presentation 'nonsensical,' 'could not follow it' Bolton told Barr he was concerned Trump did favors for autocrats: report Dershowitz: Bolton allegations would not constitute impeachable offense MORE in 2020 — a central focus of the party in choosing a nominee.

The Morning Consult poll surveyed more than 17,300 voters between Aug. 19 and Aug. 25. Its margin of error is 1 percent.