Pope Francis waves to faithful during the Angelus prayer from his studio overlooking St. Peter's Square at the Vatican on Sunday. President Obama will meet with the pope for the first time in March. Alessandra Tarantino/AP hide caption

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Protesters rally outside of a Wendy's in Brooklyn, New York, on Dec. 5 in support of raising fast food wages from $7.25 to $15 per hour. Andrew Burton/Getty Images hide caption

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The health care law's requirement that workplace insurance policies include free birth control has been controversial from the get-go. iStockphoto hide caption

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Job seekers attend at a career fair in Miami Lakes, Fla., in August. At the end of the year, 1.3 million Americans will lose their extended unemployment benefits. Alan Diaz/AP hide caption

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Health and Human Services Secretary Kathleen Sebelius' shadow appeared behind the lectern as she spoke about the implementation of the federal health law in Detroit in November. Paul Sancya/AP hide caption

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On Sept. 28, just days before enrollment opened for coverage under the Affordable Care Act, this outreach event was hosted by Planned Parenthood for the Latino community in Los Angeles. But in the first month of the troubled HealthCare.gov website saw just a fraction of those expected to sign up had managed to do so. Jonathan Alcorn/Reuters /Landov hide caption

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Winston Churchill opens the new headquarters of a Royal Auxiliary Air Force squadron at Croydon in 1948. Central Press/Hulton Archive/Getty Images hide caption

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Drivers and a man pushing a lawnmower line up at gas station in San Jose, Calif., in March 1974. AP hide caption

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President Obama speaks about the government shutdown, the budget and the debt ceiling debate during a visit to M. Luis Construction in Rockville, Md., on Thursday. Saul Loeb/AFP/Getty Images hide caption

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The Capitol is mirrored in its reflecting pool early Tuesday, as the partial federal shutdown began. But there's a battle still to come in which the stakes are even higher. J. David Ake/AP hide caption

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With President Jimmy Carter watching, Benjamin Civiletti is sworn in by Chief Justice Warren Burger as U.S. attorney general on Aug. 16, 1979. The following year, Civiletti issued a legal opinion saying that federal work cannot go on until Congress agrees to pay for it. AP hide caption

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President Obama joins former President Clinton to talk about the health care law, during the annual Clinton Global Initiative meeting Tuesday in New York. Getty Images hide caption

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President Obama gestures as he speaks to workers at the Ford Kansas City Stamping Plant in Liberty, Mo., on Friday. Pablo Martinez Monsivais/AP hide caption

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President Obama's speeches about Syria have at times seemed to reveal his own internal struggle on the topic. Pablo Martinez Monsivais/AP hide caption

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