Warren gains support but Biden retains delegate lead in new poll

Warren gains support but Biden retains delegate lead in new poll
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Former Vice President Joe BidenJoe BidenSupport drops for Medicare for All but increases for public option Bolton told ex-Trump aide to call White House lawyers about Ukraine pressure campaign: report Federal prosecutors in New York examining Giuliani business dealings with Ukraine: report MORE maintains the lead in the Democratic presidential primary, but Sen. Elizabeth WarrenElizabeth Ann WarrenSupport drops for Medicare for All but increases for public option Hillicon Valley: Warren takes on Facebook over political ads | Zuckerberg defends meetings with conservatives | Civil liberties groups sound alarm over online extremism bill Feehery: Trump may be down, but he's not out yet MORE (D-Mass.) is closing in on his first place spot, according to a new poll

A CBS/YouGov delegate tracker included in a poll released Sunday, estimates Biden has 600 delegate votes from early contest states. The estimate found that Warren has 545 delegates from the same early voting states. 

Sanders, with 286 estimated delegates, is in third, based on the poll. All other candidates were estimated to have fewer than 40 delegate votes. 

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Warren is also neck and neck with Biden for support among primary voters in early states, based on the poll. 

The poll found them statistically tied, with Warren at 26 percent and Biden at 25 percent. 

Sanders polled at 19 percent. 

Harris was a far behind fourth at 8 percent, trailed by South Bound, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegO'Rourke hits back at Buttigieg over criticism of his gun buyback proposal Chasten Buttigieg fundraising for husband Pete overseas Progressives fume at Buttigieg, warn him not to attack Warren at debate MORE at 6 percent. Sen. Cory BookerCory Anthony BookerHillicon Valley: Warren takes on Facebook over political ads | Zuckerberg defends meetings with conservatives | Civil liberties groups sound alarm over online extremism bill O'Rourke hits back at Buttigieg over criticism of his gun buyback proposal Progressives fume at Buttigieg, warn him not to attack Warren at debate MORE (D-N.J.) polled at 4 percent. 

All other candidates are at 2 percent or less in early states, based on the poll. 

Ten candidates will be facing off in a debate this week in Texas with the remainder of the field still hoping to meet the necessary polling criteria to qualify for October's debates.

The poll surveyed 7,804 Democrats and Democrat-leaning independents between Aug. 28 and Sept. 4 There is a margin of error of 1.8 percentage points.