Secretary of Defense nominee Chuck Hagel testifies Thursday before the Senate Armed Services Committee during his confirmation hearing. Alex Wong/Getty Images hide caption

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Spending cuts that are part of the looming sequester could cause big job losses in defense and other industries. U.S. Navy/Getty Images hide caption

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Sen. Marco Rubio, R-Fla., speaks Monday in Washington at a news conference announcing a bipartisan plan to overhaul the nation's immigration laws. Alex Wong/Getty Images hide caption

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Five of the eight senators who proposed a bipartisan plan for an immigration overhaul attend a Capitol Hill news conference Monday. From left are John McCain of Arizona, Chuck Schumer of New York, Marco Rubio of Florida, Robert Menendez of New Jersey and Dick Durbin of Illinois. Saul Loeb/AFP/Getty Images hide caption

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Indiana Gov. Mike Pence delivers his State of the State address to a joint session of the Legislature in Indianapolis on Tuesday. Darron Cummings/AP hide caption

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Sen. Saxby Chambliss, R-Ga., announced Friday that he won't seek a third term in 2014. Alex Wong/Getty Images hide caption

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Actor Jimmy Stewart in a scene from the 1939 movie Mr. Smith Goes to Washington, which popularized the notion of a "talking filibuster." Even under changes negotiated in the Senate, the talking filibuster remains a thing of the past. AP hide caption

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For his second inaugural address, President Obama defended government as central to harnessing the energy of American individuals. Pablo Martinez Monsivais/AP hide caption

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Mary Jo White, then U.S. Attorney for the Southern District of New York, speaks during a May 2001 press conference following guilty verdicts in the trial of four followers of Osama bin Laden that bombed two U.S. embassies in East Africa in 1998. President Obama intends to nominate White to head the Securities and Exchange Commission. Doug Kanter/AFP/Getty Images hide caption

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Sen. Dean Heller (left), R-Nev., and Sen. Joe Manchin, D-W.Va., speak Wednesday at the U.S. Capitol about legislation to delay a potential clash over the debt ceiling until May — and to freeze the paychecks of lawmakers if they don't pass a budget resolution. Mark Wilson/Getty Images hide caption

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Rep. Paul Ryan, R-Wis., arrives at President Obama's inauguration Monday on Capitol Hill. On Tuesday, Ryan, who ran for vice president on the losing Republican ticket last year, said Obama's inaugural address showed a "proud and confident liberal progressive." Carolyn Kaster/AP hide caption

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