
President Obama stands next to Homeland Security Secretary Janet Napolitano during a naturalization ceremony for active duty service members and civilians, Monday, March 25, 2013, in the East Room of the White House in Washington. (AP Photo/Susan Walsh)

**FILE** George Mason head coach Jim Larranaga finishes cutting the net after beating Connecticut 86-84 in overtime during the fourth round of the NCAA basketball tournament in Washington, Sunday, March 26, 2006. (AP Photo/Susan Walsh)

White House principal deputy press secretary Josh Earnest gives the daily briefing at the White House in Washington on Wednesday, March 27, 2013. (AP Photo/Susan Walsh)

White House principal deputy press secretary Josh Earnest gives the daily briefing at the White House in Washington on Wednesday, March 27, 2013. (AP Photo/Susan Walsh)

** FILE ** New Jersey Gov. Chris Christie sits next to first lady Michelle Obama as President Barack Obama welcomed the governors of the National Governors Association to the 2013 Governors’ Dinner at the White House in Washington, Sunday, Feb. 24, 2013. (AP Photo/Susan Walsh)

**FILE** Washington Redskins football General Manager Bruce Allen speaks at the National Press Club in Washington, Friday, Sept. 7, 2012. (AP Photo/Susan Walsh)

**FILE** Washington Redskins football General Manager Bruce Allen speaks at the National Press Club in Washington, Friday, Sept. 7, 2012. (AP Photo/Susan Walsh)

** FILE ** Senate Majority Leader Harry Reid of Nevada during a news conference on Capitol Hill in Washington, Wednesday, Nov. 7, 2012. (AP Photo/Susan Walsh)

Sen. Dianne Feinstein, D-Calif., right, sits next to the Senate Judiciary Committee's ranking Republican, Sen. Charles Grassley, R-Iowa, during a hearing on the Assault Weapons Ban of 2013, Wednesday, Feb. 27, 2013.. (AP Photo/Susan Walsh)