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 and Sen. 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.) are locked in a virtual dead heat in New Hampshire, according to a new Saint Anselm College poll released Tuesday.

Warren gets the support of 25 percent of registered New Hampshire voters in the poll, an 8-point bump since the same poll in July, while Biden gets 24 percent support, a 3-point rise since July. Sen. 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.) comes in at third with 11 percent, a one-point boost since July, with 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 following at 10 percent, a two-point drop from the summer.

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No other candidate polls in the double digits, but the poll sounds particularly loud alarm bells for 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-Calif.), who fell from 18 percent in July to 5 percent in September.

“With campaign season in full swing, the Saint Anselm College Survey Center’s fall poll of the New Hampshire Democratic Primary field shows Elizabeth Warren building on her momentum from the summer, while Kamala Harris and 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 have been unable to hold onto their July debate bounce,” said New Hampshire Institute of Politics Executive Director Neil Levesque.

The Saint Anselm survey comes as Warren continues to surge in national and statewide surveys, cementing her lead over Sanders, her chief progressive rival, and leapfrogging Biden in a handful of polls.

The race in the Granite State’s primary remains fluid, with 57 percent of respondents saying their decision can change. However, Warren appears to have the widest crossover appeal, with 26 percent of those voters saying they could change their minds saying they’d likely switch to the Massachusetts Democrat, more than doubling that same figure for Biden (12 percent).

“This suggests that when the field begins to winnow down, Warren may in the best position to pick up other candidates’ support,” said Levesque.

The difference between Warren and Biden is largely strategic, with respondents saying by a 27-19 margin that Warren would make a better president but responding by a 37-26 margin that Biden is the strongest candidate to take on President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

“There remain several months before New Hampshire Democrats cast their primary ballots, but Warren and Biden have clearly separated themselves from the rest of the field,” Levesque said. “If the dynamic of Warren as the candidate that best expresses Democratic voters’ policy preferences and Biden as the one who has the best chance of beating Trump sets in with voters, this is likely turning into a two-person race absent a big shake-up.”

The Saint Anselm College poll surveyed 423 New Hampshire registered voters from Sept. 25-29 and has a margin of error of 4.8 percent.