Same-sex wedding cake topper figurines at Cake and Art in 2008 in West Hollywood, Calif. David McNew/Getty Images hide caption

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Tweets from GOP supporters scroll along the side of a large-screen display at the Republican National Convention in Tampa, Fla., on Aug. 28, 2012. Chip Somodevilla/Getty Images hide caption

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David Wilson (left) and Rob Compton embrace after being married by a Unitarian minister at the Arlington Street Church in Boston on May 17, 2004. They were one of the first couples in Massachusetts to be legally wed. Stan Honda/AFP/Getty Images hide caption

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Standing in front of the Constitution, President Obama delivers an address on national security and terrorism in 2009 at the National Archives in Washington. J. Scott Applewhite/AP hide caption

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Advocates for and against stronger gun laws demonstrate in the Pennsylvania Capitol on Jan. 23 in Harrisburg, Pa. Matt Rourke/AP hide caption

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Sens. John McCain, R-Ariz., and Lindsey Graham, R-S.C., confer at the start of a Senate Armed Services Committee hearing last week on the appointments of military leaders. McCain and Graham have been among the Republicans pushing the Obama administration for answers about the Benghazi attack. J. Scott Applewhite/AP hide caption

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President Obama shakes hands with his nominee to head the Defense Department, former Sen. Chuck Hagel, at the White House on Jan. 7. John Brennan, Obama's choice for director of the CIA, looks on. Alex Wong/Getty Images hide caption

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President Obama gives his first inaugural address on Jan. 20, 2009. Ron Edmonds/AP hide caption

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Vice President Joe Biden leads the first meeting of the working group to explore solutions following the Newtown shooting with Philadelphia Police Commissioner Charles Ramsey and other law enforcement leaders on Dec. 20. Chip Somodevilla/Getty Images hide caption

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"I'm optimistic we may still be able to reach an agreement that can pass both houses in time," the president said after meeting with congressional leaders at the White House on Friday. Evan Vucci/AP hide caption

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Construction is under way on the viewing stand in front of the U.S. Capitol for President Obama's Inauguration Day ceremonies on Jan. 21. J. Scott Applewhite/AP hide caption

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Lauren Rae (left) and Olivia Marlow look at the ornaments in the Grand Foyer during the first viewing of the White House 2012 holiday decorations in Washington, D.C., on Wednesday. This year's theme is "Joy to All." Jim Watson/AFP/Getty Images hide caption

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A campaign volunteer wears a button as President Obama speaks at a campaign event in Maumee, Ohio. Now that the election is over, the Obama team is trying to keep supporters engaged in the president's second term. Chip Somodevilla/Getty Images hide caption

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President Obama, with daughters Sasha and Malia, at last year's turkey pardoning ceremony. Pablo Martinez Monsivais/AP hide caption

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President Obama speaks about the economy and the deficit at the White House on Friday. He says this time around, he has proof that Americans agree with his approach. Carolyn Kaster/AP hide caption

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