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.) emailed her supporters this morning, urging them to donate more as the fourth fundraising quarter — and the year — comes to a close.

"So far this quarter, we’ve raised a little over $17 million," the email says. "That’s a good chunk behind where we were at this time last quarter."

This is true; Warren's campaign raised $24.6 million in the third quarter, second to only Sen. Bernie Sanders Bernie SandersTrump, Biden will not shake hands at first debate due to COVID-19 Sanders tells Maher 'there will be a number of plans' to remove Trump if he loses Sirota reacts to report of harassment, doxing by Harris supporters MORE' (I-Vt.) campaign, which brought in over $25 million.

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Warren's campaign hopes to be at $20 million when the quarter ends in four days, the email says.

After being virtually tied with Democratic presidential primary front-runner former Vice President Joe Biden Joe BidenBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Joe Biden should enact critical government reforms if he wins MORE in October, Warren has hit a slump, falling behind Sanders in the polls and losing ground to 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.

Warren, along with Sanders, has sworn off big money donors, a talking point that came to a head in last week's Democratic primary debate in Los Angeles.

The Massachusetts senator took a swing at Buttigieg, saying, in reference to a private donor event Buttigieg hosted in Napa Valley, “Billionaires in wine caves should not pick the next president of the United States."

Her attack strategy has somewhat backfired on her, as it was revealed after the fact that Warren herself had hosted a wealthy donor event in Boston that featured a souvenir wine bottle the summer before she announced her candidacy for president.