Sen. Kamala Harris Kamala HarrisHundreds of lawyers from nation's oldest African American sorority join effort to fight voter suppression Biden picks up endorsement from progressive climate group 350 Action 3 reasons why Biden is misreading the politics of court packing MORE (D-Calif.) surged into third place among 2020 Democratic presidential candidates following what many considered a standout debate performance on Thursday, according to a new Morning Consult poll.

The survey, which was released Saturday, found that 12 percent of potential Democratic primary voters chose Harris, who made headlines for confronting former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE (D) about his past views on busing, as their first choice for president. The figure represents a 6 percentage point surge from an identical poll released last week.

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Harris still trails Sen. Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.) and Biden by solid margins. But Morning Consult noted that Harris's surge came at the expense of Biden, who saw his support drop by 5 percentage points from last week.

Thirty-three percent of respondents picked Biden as their top choice. Meanwhile, 19 percent of respondents said Sanders was their preferred candidate.

Twelve percent of possible Democratic primary voters said they'd choose Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) as the party's presidential nominee. It was a decrease of 1 percentage point and good enough to place her in a tie for third with Harris.

South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The 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 MORE (D) appeared ahead of Harris in the previous Morning Consult poll, with 7 percent of respondents saying they'd vote for him. He received 6 percent of the support to sit in fourth place in the most recent survey.

Harris's rise comes on the heels of a commanding performance on the second night of the first 2020 presidential debates. At one point, the California senator engaged in a contentious back-and-forth with Biden after she criticized his opposition to busing to desegregate schools.

"There was a little girl in California who was part of the second class to integrate her public schools, and she was bused to school every day," Harris said to Biden. "That little girl was me."

Biden called Harris's criticism a "mischaracterization" of his views and said his issue was with the Department of Education administering busing policies.

The Morning Consult post-debate poll was conducted between June 27 and June 28 among 2,407 registered voters who said they were considering voting in a Democratic primary or caucus in their state. It has a margin of error of 2 percentage points.