
This Nov. 20, 1963 photo released by the John F. Kennedy Presidential Library and Museum in Boston, shows President John F. Kennedy, First Lady Jacqueline Kennedy, Chief Justice Earl Warren, Mrs. Warren, and others descending the Grand Staircase during the Judicial Reception at the White House. On Jan. 24, 2012, the Kennedy Llibrary released the final 45 hours of White House recordings secretly taped during President Kennedy’s time in office. The last tapes were made Nov. 20, 1963, two days before his assassination in Dallas. (AP Photo/The White House, Cecil Stoughton)

On the day of his State of the Union address, President Barack Obama walks from the Oval Office along the Colonnade of the White House in Washington, Tuesday, Jan. 24, 2012. (AP Photo/Haraz N. Ghanbari)

On the day of his State of the Union address, President Obama walks Jan. 24, 2012, from the Oval Office along the Colonnade of the White House. (Associated Press)

Members of the Stanley Cup champion Bruins meet with President Obama in the White House on Monday. Boston plays at Washington on Tuesday night. (Associated Press)

President Obama, seated with outgoing White House Chief of Staff Bill Daley, gestures while meeting with the Council on Jobs and Competitiveness on Tuesday, Jan. 17, 2012, in the State Dining Room of the White House in Washington. (AP Photo/Haraz N. Ghanbari)

**FILE** Jeff Zients, deputy director for the Office of Management and Budget, briefs reporters March 2, 2011, at the White House. (Associated Press)

White House press secretary Jay Carney gives his daily briefing on Tuesday, Jan. 17, 2012, in the Brady Briefing Room of the White House in Washington. (AP Photo/Haraz N. Ghanbari)

White House Press Secretary Jay Carney speaks during the daily briefing at the White House in Washington, Thursday, Jan. 12, 2012. (AP Photo/Susan Walsh)

President Obama delivers remarks on government reform on Friday, Jan. 13, 2012, in the East Room of the White House in Washington. (AP Photo/J. Scott Applewhite)