Sens. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) and Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.) and former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE are locked in a three-way tie in the California Democratic Primary, according to a poll released Thursday.

The Public Policy Institute of California's (PPIC) survey found Warren as the top choice of 23 percent of likely voters in the Democratic Primary, followed by Biden at 22 percent support and Sanders at 21 percent support.

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It is a statistical tie as all three candidates fall within the margin of error.

California Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D) received the next highest support at 8 percent, just ahead of 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) at 6 percent support.

Harris's fourth-place finish shows the lawmaker struggling to gain traction within her home state, a concerning result for her campaign given that no recent White House hopeful who lost their home state in a primary has gone on to win their party’s nomination.

Entrepreneur Andrew Yang Andrew YangBiden's latest small business outreach is just ... awful Doctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls MORE was the top choice for 3 percent of those surveyed, while no other candidate cleared 2 percent.

Eleven of the candidates who qualified for the October debate were listed as options to respondents. Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE (D-Hawaii) had not yet qualified at the time of the survey.

Support remains fluid in the race, as 53 percent of respondents said they would consider supporting another candidate for the Democratic nomination.

“Many Democratic-leaning voters are open to switching allegiances at this early stage of the presidential primary season, and most see the debates as important for choosing a candidate,” PPIC President Mark Baldassare said in a statement.

California is more important in this nominating cycle than in previous ones because of an accelerated primary schedule that has the largest state in the nation going to the polls on Super Tuesday, when voters in a dozen states will cast their ballots for the Democratic nomination.

PPIC surveyed 692 likely Democratic primary voters between Sept. 16-25 using a mix of cellphone and landline calls. The margin of error for the sample is plus or minus 4.9 percentage points.