** FILE ** In this Dec. 20, 2013, file photo, President Barack Obama laughs as he is asked a question during an end-of-the year news conference in the Brady Press Briefing Room at the White House in Washington. (AP Photo/Susan Walsh, File)

Photo by: Susan Walsh

** FILE ** In this Dec. 20, 2013, file photo, President Barack Obama laughs as he is asked a question during an end-of-the year news conference in the Brady Press Briefing Room at the White House in Washington. (AP Photo/Susan Walsh, File)