Rep. Elijah Cummings, D-Md., ranking member on the House Oversight and Government Reform Committee, listens to testimony on Capitol Hill in Washington, Tuesday, June 24, 2014, from panel of witnesses including Jennifer O’Connor of the Office of the White House Counsel, who once worked at the IRS, during the committee’s hearing on “IRS Obstruction: Lois Lerner’s missing e-mails.”