People walk on the Columbia University campus in New York City on July 1, the day the federal student loan interest rate hike kicked in. Mario Tama/Getty Images hide caption

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Veetek Witkowski holds a newly assembled AR-15 rifle at the Stag Arms company in New Britain, Conn., in April. Charles Krupa/AP hide caption

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Sen. Susan Collins, R-Maine, is among the lawmakers who say they were never briefed about the government's surveillance programs. T.J. Kirkpatrick/Getty Images hide caption

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Sen. Kirsten Gillibrand greets panel members from the military and the Defense Department testifying on Capitol Hill on March 13 before the subcommittee's hearing on sexual assault in the military. Carolyn Kaster/AP hide caption

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Deward Cawthon, a plant operator at the Federal Helium Reserve, walks through the Federal Crude Helium Enrichment Unit near Amarillo, Texas, in 2011. Joyce Marshall/MCT/Landov hide caption

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After years in the halls of Congress, Republican Mitch McConnell has to convince Kentucky voters that he's still paying attention to what they want. Chip Somodevilla/Getty Images hide caption

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New York City Mayor Michael Bloomberg speaks at a news conference at City Hall on April 25. The billionaire mayor has been spending from his personal fortune to provide a "political counterweight to the NRA," his policy adviser says. Spencer Platt/Getty Images hide caption

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Assault weapons and hand guns for sale. Seth Perlman/AP hide caption

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Congress comes back from a two-week spring break on Monday. Charles Dharapak/AP hide caption

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A member of the New York Hispanic Clergy Organization (right) is confronted by a pro-gay-marriage activist outside the Supreme Court on Tuesday. Karen Bleier/AFP/Getty Images hide caption

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Sen. Barbara Mikulski, D-Md., speaks at the Democratic National Convention last year in Charlotte, N.C. She's the first woman ever to chair the Senate Appropriations Committee. Alex Wong/Getty Images hide caption

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Senate Judiciary Committee Chairman Patrick Leahy holds a hearing on gun control on March 7. The committee has since passed two bills on guns that are headed to the full Senate. Jewel Samad/AFP/Getty Images hide caption

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Congress has until March 27 to pass a Continuing Resolution. If it doesn't, the government will run out of money and will likely shut down. Manuel Balce Ceneta/AP hide caption

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