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.) 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 running neck and neck with a large lead over the rest of the Democratic primary field, according to a national poll released Monday.

Warren was the first choice of 27 percent of Democrats and Democrat-leaning independents surveyed by Investor's Business Daily and TIPP, 1 percentage point ahead of Biden.

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The Massachusetts lawmaker gained 3 points from the same survey in September, while Biden dropped from 28 percent to 26 percent support.

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.) was the third most-popular choice of respondents, at 10 percent support in the new poll, a 2 point drop from last month.

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) gained 2 points from September to now register at 7 percent support.

No other Democratic candidate cleared 3 percent support.

IBD/TIPP surveyed 341 Democrats and independents who lean Democratic between Sept. 26 and Oct. 3 via landline and mobile phone.