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 released a new TV ad targeting Washington corruption and pledging not to sell ambassadorships, a line of attack she leveled against 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) during Thursday's primary debate.

In the 30-second video spot that was posted Friday to YouTube and is set to air in Iowa, Warren does not mention Buttigieg by name but prominently criticized "big-dollar fundraisers," a reference to a Buttigieg fundraiser in a wine cave that was pilloried by Warren and others during the sixth Democratic debate.

“I’m not doing big-dollar fundraisers, I’m not selling ambassadorships to donors, I’m not cozying up to super PACs. And my first priority as president will be to pass the biggest package of anti-corruption reform since Watergate,” Warren says in the ad.

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The Massachusetts Democrat slammed Buttigieg over the fundraiser onstage last week, asking viewers to "think about who comes to" those kinds of fundraisers and suggesting that Buttigieg would offer high-level appointments to major campaign donors.

"He had promised that every fundraiser he would do would be open door, but this one was closed-door. We made the decision many years ago that rich people in smoke-filled rooms would not pick the next president of the United States," she said Thursday.

Buttigieg fired back at Warren during the debate by pointing out that his net worth was the lowest of the seven candidates onstage.