** FILE ** In this Feb. 11, 2012, file photo, Sarah Palin, the GOP candidate for vice-president in 2008 and former Alaska governor, speaks in Washington. (AP Photo/J. Scott Applewhite)
** FILE ** Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)
** FILE ** Newly printed $20 notes are seen at the Bureau of Engraving and Printing in Washington. (AP Photo/J. Scott Applewhite)
** FILE ** Newly printed $20 notes are seen at the Bureau of Engraving and Printing in Washington. (AP Photo/J. Scott Applewhite)
** FILE ** Sen. Ted Cruz, R-Texas walks through the Capitol complex in Washington, Friday, March 22, 2013. (AP Photo/J. Scott Applewhite)
** FILE ** Sen. Rand Paul, Kentucky Republican. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder testifies on Capitol Hill in Washington, Thursday, June 6, 2013, before a Senate Appropriations subcommittee as lawmakers examine the budget for the Justice Department. (AP Photo/J. Scott Applewhite)
Attorney General Eric Holder testifies on Capitol Hill in Washington, Thursday, June 6, 2013, before a Senate Appropriations subcommittee as lawmakers examine the budget for the Justice Department. (AP Photo/J. Scott Applewhite)
** FILE ** Sen. Rand Paul, Kentucky Republican. (AP Photo/J. Scott Applewhite)
