Sen. Elizabeth WarrenElizabeth Ann WarrenSanders to headline Iowa event amid impeachment trial Hill.TV's Saagar Enjeti rips Sanders over handling of feud with Warren On The Money — Presented by Wells Fargo — Sanders defends vote against USMCA | China sees weakest growth in 29 years | Warren praises IRS move on student loans MORE (D-Mass.) on Wednesday ripped President TrumpDonald John TrumpNational Archives says it altered Trump signs, other messages in Women's March photo Dems plan marathon prep for Senate trial, wary of Trump trying to 'game' the process Democratic lawmaker dismisses GOP lawsuit threat: 'Take your letter and shove it' MORE for leading the “most corrupt administration ever.”

Warren went after the Trump administration during an interview with CNN after controversial statements from White House budget chief Mick MulvaneyJohn (Mick) Michael MulvaneyTrump trial poses toughest test yet for Roberts Collins says she's 'likely' to support calling witnesses for impeachment trial Schumer doesn't rule out calling Parnas to testify in impeachment trial MORE.

"He's so corrupt that he was willing to just lay it all out there in front of everyone," Warren said. “He said, 'I am a government official who pays attention to those who pay me.' If that's not corruption, I don't know what the definition of corruption is."

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Mulvaney, who is also the interim director of the Consumer Financial Protection Bureau, suggested Tuesday  that he gave preferential treatment to lobbyists who had donated to his campaign.

“If you were a lobbyist who never gave us money, I didn't talk to you. If you were a lobbyist who gave us money, I might talk to you,” Mulvaney said at a banker conference in Washington.

“If you came from back home and sat in my lobby, I would talk to you without exception, regardless of the financial contributions.”

Mulvaney is a former GOP congressman from South Carolina.

Warren ripped the suggestion as "pay-to-play."

"That's just another way of saying, 'this joint runs great for those who can hire armies of lobbyists and lawyers and have them make big campaign contributions, but not here for real people,’” Warren said Wednesday.

Warren, who serves on the Senate Banking Committee, has confronted Mulvaney before.

Earlier this month, she told him he was “hurting real people to score cheap political points.”