"Kevin McCarthy fell for telling the truth about a political charade. He exposed the partisan effort to sabotage Hillary Clinton's campaign and it cost him the speakership," Brock said in the statement.
Brock's organization works to "defend Hillary Clinton from baseless attacks," according to the group's website.
Brock asked if Rep. Trey Gowdy (R-SC), who chairs the House Benghazi committee, would face the same fate as McCarthy for pushing a "partisan agenda."
“I said it last week and I'll say it again, Trey Gowdy should disband this sham of a committee now," Brock wrote.