“I do want to say that one of the reasons Mr. Durham is able to make the kind of progress he’s making is because Director [Christopher] Wray and his team at the FBI have just been outstanding in support and responsiveness given to Mr. Durham,” Barr said on Monday. “As you know, I’ve said previously that I felt there was a failure of leadership at the bureau in 2016 and part of 2017, but since Director Wray and his team have taken over there’s been a world of change.”

Democratic congressional leaders have accused Barr of taking actions that are in the president’s best interest. Democrats have also voiced concern about Barr’s ability to remain objective on matters that involve Ukraine, after the release of Trump’s phone call in July with the country’s president, Volodymyr Zelensky, mentioned Barr’s involvement. That call, in which Trump said that Barr and his personal attorney Rudy Giuliani would contact Zelensky, prompted a whistleblower’s complaint that is at the center of the House’s impeachment inquiry into the president.

Reports by The Washington Post and The New York Times also found that Barr was meeting with foreign officials to get assistance with the Durham investigation.

Rep. Adam Schiff (D-Calif.), the chairman of the House Intelligence Committee and a leader of the impeachment inquiry, said on Sunday that the attorney general “is weaponizing the Justice Department to go after the president’s enemies.”

“He’s demonstrating once again that he is merely a tool of the president, the president’s hand, not the representative of the American people,” Schiff said on ABC’s “This Week With George Stephanopoulos.”

Rep. Jerry Nadler (D-N.Y), the chairman of the House Judiciary Committee, and Schiff also released a joint statement on Oct. 24 regarding the escalation of the Justice Department’s investigation, noting that the department “has lost its independence and become a vehicle for President Trump’s political revenge.”

“If the Department of Justice may be used as a tool of political retribution, or to help the President with a political narrative for the next election,” the statement said, “the rule of law will suffer new and irreparable damage.”