President Obama announces Thomas E. Perez, his nominee for Labor Secretary, on March 18, 2013, in the East Room of the White House in Washington. (Associated Press)
White House press secretary James Carney listens to a reporter's question during his daily news briefing in the Brady Press Briefing Room of the White House in Washington on Wednesday, March 13, 2013. (AP Photo/Manuel Balce Ceneta)
**FILE** President George W. Bush signs legislation for a 25-year extension of the Voting Rights Act on the South Lawn of the White House in Washington on July 27, 2006. (Associated Press)