House Judiciary Committee Chairman John Conyers (D-Mich.) called former White House adviser Karl Rove's decision not to show up to a committee hearing Thursday "an insult."

Rove was called to testify for Thursday's hearing after Conyers subpoenaed him in May to try to force Rove's disclosure of information on the White House's alleged politicization of the Justice Department.

"Mr. Rove's absence today is an insult to the American people and to the system of checks and balances that are the basis of our constitution and our democracy," Conyers said.

"I will seriously consider all available options to obtain Mr. Rove