Because Cummings is black, no doubt.

Via WaPo:

In a strongly worded letter to House Speaker John A. Boehner (R-Ohio), the Congressional Black Caucus called for Rep. Darrell Issa (R-Calif.) to be stripped of his House committee chairmanship after he abruptly ended a hearing Wednesday morning over the objection of Democrats in the room.

“Mr. Issa is a disgrace and should not be allowed to continue in a leadership role,” wrote Rep. Marcia Fudge (D-Ohio), who leads the Congressional Black Caucus, in the letter to Boehner.

The Wednesday hearing on the Internal Revenue Service’s targeting controversy  quickly turned tense. When former IRS official Lois Lerner invoked her Fifth Amendment right and declined to testify, Issa adjourned the meeting of the House Oversight and Government Reform Committee.

The panel’s ranking member, Rep. Elijah Cummings (D-Md.), asked that the hearing be continued so he could speak, but Issa refused and had Cummings’s microphone cut off. Republicans on the panel, led by Issa, then walked out of the room while the Maryland congressman continued to speak.

“Congressman Darrell Issa of California abused his authority and therefore must be reprimanded to ensure the dignity of the House of Representatives is preserved,” Fudge wrote. “We urge you to take prompt action to maintain the integrity of this body and remove Mr. Issa as chair of the Oversight & Government Reform Committee immediately.”