Former senior FBI official Chuck Rosenberg ripped Acting Attorney General Matt WhitakerMatthew G WhitakerEx-federal prosecutor: 'Thank God' Whitaker is gone, Barr will bring 'integrity' back to DOJ GOP pollster says Dems are relitigating 2016 election with investigations of Trump Former senior FBI official calls Whitaker hearing ‘disgraceful’ MORE on Friday night, calling his testimony in front of the House Judiciary Committee “disgraceful.”

"I’ve testified many times in Congress," Rosenberg, who served as chief of staff under former FBI Director James ComeyJames Brien ComeyIs coronavirus the final Trump crisis? Full appeals court to rehear case over McGahn subpoena Tucker Carlson: Biden's 'fading intellect' an 'opportunity' for Democrats to control him MORE and as a U.S. attorney in the Bush administration, explained during an interview on MSBNC.

"Sometimes the questions are good and thoughtful, sometimes they’re compound and incomprehensible, but you have to answer every one with a degree of civility and dignity, and that was sorely lacking.”

Whitaker sparred with various lawmakers during his appearance before the Judiciary panel on Friday, with Democrats peppering him with questions for hours and blasting his responses to certain questions.

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At one point, the Trump administration official shocked committee members and spectators alike after he told Judiciary Chairman Jerry NadlerJerrold (Jerry) Lewis NadlerHouse Judiciary Committee postpones hearing with Barr amid coronavirus outbreak House Democrats plead with key committee chairman to allow remote voting amid coronavirus pandemic Pelosi rejects calls to shutter Capitol: 'We are the captains of this ship' MORE (D-N.Y.) that his time for questioning had run out.

“Mr. Chairman, I see that your five minutes is up,” Whitaker said, drawing gasps from the panel and a packed crowd.

“I am here voluntarily. We have agreed to five-minute rounds,” he added.

Lawmakers routinely go over their five-minute time limits for questioning, and it is particularly rare for a witness to accuse the chairman of a panel of having gone over his time limit.

“The committee will come to order. I will point out we didn't enforce the five-minute rule on acting Attorney General Whitaker,” Nadler responded.

During the hearing, Whitaker also said he had not interfered in special counsel Robert MuellerRobert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s probe into possible collusion between the Trump campaign and Moscow in 2016. 

Rosenberg has emerged as a staunch critic of the Trump administration, often appearing on cable news to denounce what he says is the president’s mistreatment of the Justice Department.