Since going after 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) about his wealthy donors in Thursday's Democratic presidential debate, 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.) has received flak over the same issue.

Bush-era former White House Press Secretary Ari Fleisher tweeted "What’s the Massachusetts word for hypocrite?"

What’s the Massachusetts word for hypocrite? https://t.co/zS9qTlqBQX — Ari Fleischer (@AriFleischer) December 21, 2019

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During the debate, Warren criticized Buttigieg for hosting an exclusive donor event in a Napa Valley "wine cave" that featured $900 bottles of wine.

“Billionaires in wine caves should not pick the next president of the United States,” she said, adding “I do not sell access to my time.”

The Massachusetts senator, along with fellow progressive candidate 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.), have both sworn off taking donations from billionaires and large corporations and have repeatedly attacked fellow candidates who haven't done the same.

However, this policy is somewhat new for Warren, who took money from wealthy donors during her most recent Senate reelection campaign. She also took $10 million from her Senate reelection campaign to seed her presidential bid.

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The Associated Press highlighted a donor event that Warren held in June 2018 at City Winery Boston. People who were in attendance that donated $1000 received a souvenir wine bottle.

Former Obama campaign chief strategist David Axelrod David AxelrodThe Memo: Warning signs flash for Trump on debates GOP hunts for leverage in revived COVID-19 talks Pelosi says there shouldn't be any debates between Biden and Trump MORE weighed in after the prior fundraising event was revealed.

"This was the danger in the @ewarren “wine cave” attack on @PeteButtigieg," Axelrod tweeted.

"Her own past fundraising practices were pretty much in line with his, including even some of the same high dollar sponsors."