President Obama welcomes British Prime Minister David Cameron during an official arrival ceremony on the South Lawn of the White House in Washington on Wednesday, March 14, 2012. (AP Photo/Charles Dharapak)
Waving from the balcony of the White House in Washington on Wednesday, March 14, 2012, are (from left) Samantha Cameron, wife of British Prime Minister David Cameron; first lady Michelle Obama; Mr. Cameron; and President Obama. (AP Photo/Carolyn Kaster)
President Obama, accompanied by Commerce Secretary John E. Bryson (left) and U.S. Trade Representative Ron Kirk, speaks in the Rose Garden of the White House in Washington on Tuesday, March 13, 2012. (AP Photo/Haraz N. Ghanbari)
** FILE ** President Obama points toward a reporter during a news conference at the White House in Washington, Tuesday, March 6, 2012. (Associated Press)
President Obama meets with Israeli Prime Minister Benjamin Netanyahu on Monday, March, 5, 2012, in the Oval Office of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)
The White House is selling special-edition souvenir eggs ahead of its Easter Egg Roll on April 9. A single egg costs $7.50 while a set is $30, and the commemorative red egg features the first dog's paw print. (White House photo)
President Barack Obama leads guests to a toast as he hosts a dinner for members of the U.S. military who served in Iraq in the East Room of the White House in Washington, Wednesday, Feb., 29, 2012. (AP Photo/Pablo Martinez Monsivais)
White House press secretary Jay Carney gives his daily news briefing at the White House in Washington on Wednesday, Feb. 29, 2012. (AP Photo/Pablo Martinez Monsivais)
President Obama told his audience at a gathering of the National Governors Association at the White House Monday that higher education includes a community college degree for a skilled manufacturing job and not just a four-year degree. (Associated Press)