** FILE ** Attorney General Eric Holder pauses while testifying on Capitol Hill in Washington, Wednesday, Jan. 29, 2014, before the Senate Judiciary Committee oversight hearing on the Justice Department. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder testifies on Capitol Hill in Washington, Wednesday, Jan. 29, 2014, before the Senate Judiciary Committee hearing oversight hearing on the Justice Department. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder pauses while testifying on Capitol Hill in Washington, Wednesday, Jan. 29, 2014, before the Senate Judiciary Committee hearing oversight hearing on the Justice Department. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder pauses while testifying on Capitol Hill in Washington, Wednesday, Jan. 29, 2014, before the Senate Judiciary Committee hearing oversight hearing on the Justice Department. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder listens on Capitol Hill in Washington, Wednesday, Jan. 29, 2104, while testifying before the Senate Judiciary Committee oversight hearing on the Justice Department. (AP Photo/J. Scott Applewhite)
Rep. James Sensenbrenner, R-Wis., testifies at a Senate Judiciary Committee hearing on the Voting Rights Act in Washington in July, 2013. (AP Photo/Jacquelyn Martin, File)