Ousted IRS chief Steven Miller testifies on Capitol Hill in Washington, Friday, May 17, 2013, before the House Ways and Means Committee hearing on the extra scrutiny the IRS gave Tea Party and other conservative groups that applied for tax-exempt status. (AP Photo/J. Scott Applewhite)

Ousted IRS chief Steven Miller testifies on Capitol Hill in Washington, Friday, May 17, 2013, before the House Ways and Means Committee hearing on the extra scrutiny the IRS gave Tea Party and other conservative groups that applied for tax-exempt status. (AP Photo/J. Scott Applewhite)