Biden, Gabbard suffer hits to favorability after debate

Democratic presidential hopefuls Joe BidenJoe BidenGOP senators balk at lengthy impeachment trial 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE and Rep. Tulsi GabbardTulsi GabbardThe Hill's Morning Report - Diplomats kick off public evidence about Trump, Ukraine Outsider candidates outpoll insider candidates Krystal Ball: Tulsi Gabbard surges, is she the most electable? MORE (D-Hawaii) saw their net favorability among Democratic primary voters take a dip following the most recent Democratic debate and amid Gabbard's high-profile feud with 2016 presidential candidate Hillary ClintonHillary Diane Rodham Clinton2020 Democrats make play for veterans' votes The Memo: Democrats confront prospect of long primary Manafort sought to hurt Clinton 2016 campaign efforts in key states: NYT MORE, a new poll has found. 

The results of a Morning Consult survey dated Monday show the net favorability of Biden, the former vice president, slipped 5 percentage points, from 55 percent to 50 percent, and Gabbard's dropped 6 percentage points from 10 percent to 4 percent following the fourth Democratic debate last week in Westerville, Ohio.

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The net favorability of many other candidates remained relatively stable, as Sen. Elizabeth WarrenElizabeth Ann WarrenWarren goes local in race to build 2020 movement 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE (D-Mass.) saw a 1 percentage point increase, Sen. Bernie SandersBernie Sanders2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (I-Vt.) saw no change and Sen. Kamala HarrisKamala Devi HarrisWarren goes local in race to build 2020 movement 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (D-Calif.) saw a 1 percentage point drop. 

South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul Buttigieg2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE saw the largest net favorability increase, from 33 percent to 36 percent. 

Net favorability is calculated by subtracting the percentage of Democratic primary voters who view the candidates unfavorably from those who view them favorably. 

The survey still showed Biden leading the Democratic field, with support from 30 percent of Democratic primary voters polled. He was followed by  Warren who was supported by 21 percent and Sanders who was supported by 18 percent. 

Twelve Democratic hopefuls faced off in the debate.

Gabbard has recently been sparring with Clinton after the former secretary of State suggested, seemingly without evidence, that the lawmaker was a Russian asset. Gabbard has denied this and has slammed Clinton as the "queen of warmongers."

Morning Consult surveyed 11,521 registered voters who said they may vote in the Democratic primary or caucus between Oct. 16-20. The margin of error is plus or minus 1 percentage point.