As Rep. Darrell Issa, R-Calif., pressed Attorney General Eric Holder for details about a phone call from Assistant Attorney General Thomas Perez, Holder lost his temper.

Holder interrupted Issa’s line of questioning and declared that he would not stop talking.

“No, I am not going to stop talking now,” Holder said after Issa tried to ask him a follow-up question.

“Mr. Chairman, would you inform the witness as to the rules of the committee?” Issa asked, speaking over Holder’s protest.

“It is inappropriate and too consistent with the way in which you conduct yourself as a member of Congress,” Holder continued. “It is unacceptable. It is shameful.”