Poll: Biden support hits record low of 26 percent

Support for former Vice President Joe BidenJoe BidenKamala Harris receives new Iowa endorsements after debate performance Watergate prosecutor says that Sondland testimony was 'tipping point' for Trump Overnight Defense — Presented by Boeing — Deal on defense bill proves elusive | Hill, Holmes offer damaging testimony | Trump vows to block Navy from ousting officer from SEALs MORE has hit record low of 26 percent, according to a new Hill-HarrisX poll released on Thursday.

That figure marks a one-point decrease from the previous Oct. 21-22 poll, and a 9-point decrease from his all-time of 35 percent in June.

However, the former Vice President still maintains his lead over progressive candidates Sens. Elizabeth WarrenElizabeth Ann WarrenKamala Harris receives new Iowa endorsements after debate performance Warren speech in Georgia interrupted by pro-charter school protesters Hillicon Valley: Senators ask Trump to halt Huawei licenses | Warren criticizes Zuckerberg over secret dinner with Trump | Senior DHS cyber official to leave | Dems offer bill on Libra oversight MORE (D-Mass.) and Bernie SandersBernie SandersKamala Harris receives new Iowa endorsements after debate performance Wasserman Schultz makes bid for House Appropriations Committee gavel Overnight Health Care: Crunch time for Congress on surprise medical bills | CDC confirms 47 vaping-related deaths | Massachusetts passes flavored tobacco, vaping products ban MORE (I-Vt.), who have traded spots in recent weeks.

Warren slipped from 19 percent to 15 percent in the latest survey, but maintained her spot in second place, with Sanders trailing behind 14 percent.

Sen. Kamala HarrisKamala Devi HarrisKamala Harris receives new Iowa endorsements after debate performance On The Money: Trump signs short-term spending bill to avoid shutdown | Pelosi casts doubt on USMCA deal in 2019 | California high court strikes down law targeting Trump tax returns Democratic strategist laments 'low bar' for Biden debate performance MORE and South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegButtigieg campaign field organizers unionize Harris: Buttigieg comparing 'struggles' between black, LGBTQ communities is 'a bit naive' Poll: Trump edges Biden, trails Sanders in neck and neck match-ups MORE are tied for fourth place, each receiving 6 percent support.

Sen. Amy KlobucharAmy Jean KlobucharA free college tradeoff — what should the 2020 candidates promise? Booker hits fundraising threshold for December debate after surge of post-debate donations The Hill's Morning Report - Sondland stuns; Dems pull punches in fifth debate MORE (D-Minn.) followed with 3 percent support, while both Sen. Cory BookerCory Anthony BookerBooker hits fundraising threshold for December debate after surge of post-debate donations Bicameral group of Democrats introduces bill to protect immigrant laborers The Hill's Morning Report - Sondland stuns; Dems pull punches in fifth debate MORE (D-N.J.) and Former Housing and Urban Development Secretary Julián Castro drew 2 percent.

Every other candidate in the 2020 race polled at 1 point or less.

Meanwhile, the number of voters who are unsure about which candidate should be the nominee increased slightly from 13 to 16 percent.

The survey comes as a number of 2020 Democratic contenders gear up for the presidential primary debate in Atlanta.

Rep. Tulsi GabbardTulsi GabbardDemocratic strategist laments 'low bar' for Biden debate performance Harris: Buttigieg comparing 'struggles' between black, LGBTQ communities is 'a bit naive' A forgettable debate for an exhausted nation MORE (D-Hawaii), who among the candidates polling at 1 percent in the latest Hill-HarrisX poll, became the latest candidate to qualify for the Nov. 20 debate.

Gabbard made the stage after receiving 3 percent support in a Quinnipiac University poll focused on Iowa that was released on Wednesday. She will join Biden, Warren, Sanders and Buttigieg. Businessman Tom SteyerThomas (Tom) Fahr SteyerAs Buttigieg rises, Biden is still the target Steyer, Biden clash over climate credentials Steyer, Gabbard and Yang shut out of early minutes of Democratic debate MORE and tech entrepreneur Andrew YangAndrew YangPoll: Biden and Sanders tied nationally, followed by Warren The Hill's 12:30 Report — Presented by Johnson & Johnson — Witness dismisses 'fictional' GOP claims of Ukraine meddling Yang says white supremacist violence should be designated domestic terrorism MORE are also poised to take the debate stage.

To qualify for the debate this month, candidates have to accrue support from at least 165,000 unique donors and resister at least 3 percent in four qualifying polls or 5 percent in two early state polls by Nov. 13.

—Tess Bonn