Chief Justice John Roberts, shown here during a presentation last June in Pennsylvania, questioned the U.S. solicitor general about voting statistics during this week's arguments on Section 5 of the Voting Rights Act. Ann Wilkins/AP hide caption

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House Speaker John Boehner speaks to the media after a meeting with President Obama on Friday. Mark Wilson/Getty Images hide caption

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With a declining population and dwindling tax base, Detroit has grappled with severe financial problems in the past decade. J.D. Pooley/Getty Images hide caption

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Mushers can bring up to 20 dogs to the Iditarod but can start the race with only 16. In the days before the competition, the animals are taken to the Iditarod headquarters in Wasilla, Alaska, for pre-race exams. Russell Lewis/NPR hide caption

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Republican National Committee Chairman Reince Priebus, shown here in August at the Republican National Convention, has named a five-member task force to conduct a review of what went wrong for his party in the November elections. Charles Dharapak/AP hide caption

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American Electric Power's natural gas-burning plant in Dresden, Ohio, is one of the energy company's new investments in alternatives to coal-burning plants. Michael Williamson/The Washington Post/Getty Images hide caption

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Bonobos share a piece of fruit at the Lola ya Bonobo sanctuary in the Democratic Republic of Congo. Jingzhi Tan/Duke University hide caption

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