White House hopeful Joe BidenJoe BidenHouse Democrat threatens to vote against party's spending bill if HBCUs don't get more federal aid Overnight Defense & National Security — The Pentagon's deadly mistake Haitians stuck in Texas extend Biden's immigration woes MORE holds big leads over the Democratic primary field in two national polls released Tuesday.
Emerson's latest poll found the former vice president was the top choice of 33 percent of likely Democratic voters, 13 points ahead of Sen. Bernie SandersBernie SandersDemocrats urge Biden to commute sentences of 4K people on home confinement Briahna Joy Gray: Push toward major social spending amid pandemic was 'short-lived' Sanders 'disappointed' in House panel's vote on drug prices MORE (I-Vt.), who placed second with 20 percent support.
Sen. Elizabeth WarrenElizabeth WarrenFederal Reserve officials' stock trading sparks ethics review Manchin keeps Washington guessing on what he wants Warren, Daines introduce bill honoring 13 killed in Kabul attack MORE (D-Mass.) finished third in the survey at 14 percent support.
While Sanders gained 5 points since Emerson's last survey, Kamala HarrisKamala HarrisStefanik in ad says Democrats want 'permanent election insurrection' Live coverage: California voters to decide Newsom's fate Florida woman faces five years in prison for threatening to kill Harris MORE (D-Calif.) fell 4 points to 11 percent.
The only other candidates above 3 percent were South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegOn The Money — Presented by Wells Fargo — Pelosi plows full speed ahead on jam-packed agenda Blumenthal calls on Buttigieg to investigate American Airlines-JetBlue partnership LGBT film festival to premiere documentary about Pete Buttigieg MORE at 6 percent and former Rep. Beto O’Rourke (D-Texas) at 4 percent.
Morning Consult's weekly survey also found Biden as the top choice of voters at 33 percent, leading Sanders, who also placed second in this survey with 18 percent support, 15 points behind Biden.
Warren at 13 percent and Harris at 12 percent were in a close race for third in this survey as well.
Buttigieg at 5 percent, O'Rourke at 3 percent and Sen. Cory BookerCory BookerDOJ announces agencywide limits on chokeholds and no-knock entries Fighting poverty, the Biden way Top Senate Democrats urge Biden to take immediate action on home confinement program MORE (D-N.J.) at 3 percent were the only other candidates above 2 percent.
The polls come just before 20 of the Democratic candidates are set to take the stage for the second primary debate, with 10 participating on Tuesday night and another 10 participating on Wednesday night.
The polls taken together show Biden recovering from a polling dip after the first presidential debate, where he was widely seen as having delivered an uneven performance.
Harris, whose questioning of Biden on federally mandated busing during the debate drew headlines, has fallen slightly but still gained from her predebate position.
Sanders also seems to have moved up in the weeks following the debate.
Emerson surveyed 520 Democratic primary voters between July 27 and July 29, with a margin of error of 4.2 percentage points.
Morning Consult surveyed 16,959 registered voters who may vote in the primary between July 22 and July 28, with a margin of error of 1 percentage point.
A Hill-HarrisX poll released Tuesday has a similar distribution of the top four candidates' support.
This report was updated at 11:31 a.m.