House Oversight Committee Chairman Rep. Darrell Issa, R-Calif. holds up a document as he speaks to IRS official Lois Lerner on Capitol Hill in Washington, Wednesday, May 22, 2013, during the committee's hearing to investigate the extra scrutiny IRS gave to Tea Party and other conservative groups that applied for tax-exempt status.  Lerner told the committee she did nothing wrong and then invoked her constitutional right to not answer lawmakers' questions. (AP Photo/Carolyn Kaster)