Smokey Robinson addresses the crowd at Thursday's White House musical event, flanked by singer John Legend (left) and Motown founder Berry Gordy. Saul Loeb/AFP/Getty Images hide caption

itoggle caption Saul Loeb/AFP/Getty Images

President Obama greets supporters after giving closing remarks Tuesday at a small business forum at Cleveland State University. Obama has only weighed in once on the union protests in Indiana, Ohio and Wisconsin. Tony Dejak/AP hide caption

itoggle caption Tony Dejak/AP

Students cheer as President Obama delivers a speech at the University of Indonesia in Jakarta in November. Jim Watson/AFP/Getty Images hide caption

itoggle caption Jim Watson/AFP/Getty Images

President Obama on Tuesday offered cautious support for the pro-democracy demonstrations unfolding in Bahrain, Iran and Yemen. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

A prototype streetcar made by Oregon Iron Works gets to work in Portland in 2009. Don Ryan/AP hide caption

itoggle caption Don Ryan/AP

First lady Michelle Obama promotes the Let's Move! campaign and the NFL's Play 60 anti-obesity initiative on Sept. 8 in New Orleans. Gerald Herbert/AP hide caption

itoggle caption Gerald Herbert/AP

Protesters gathered in Cairo's Tahrir Square watch President Obama speaking from Washington, D.C., about the situation in Egypt. Lefteris Pitarakis/AP hide caption

itoggle caption Lefteris Pitarakis/AP

President Ford holds up a WIN, or "Whip Inflation Now," enlistment form, which asks citizens to sign up as inflation fighters during his news conference in the White House Rose Garden on Oct. 9, 1974. The slogan turned out to be a dud. AP hide caption

itoggle caption AP

In this screen capture, President Obama is seen live on the White House YouTube channel answering video and text questions on Feb. 1, 2010, after last year's State of the Union. AP hide caption

itoggle caption AP

President Obama delivers his State of the Union address Jan. 27, 2010. For White House speechwriters, the address is one of the more complicated speeches they must write. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

President Obama greets Norm Eisen, the White House's ethics czar, in January 2009. Obama used a recess appointment to give Eisen, a friend from law school, the job as U.S. ambassador to the Czech Republic just before Christmas. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP