Chief Justice John Roberts, shown in 2010, is still "finding his role as chief justice," says one law professor. Paul J. Richards/AFP/Getty Images hide caption

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Paul J. Richards/AFP/Getty Images

Massachusetts Senate candidate Elizabeth Warren is shown here attending a 2010 Capitol Hill hearing on the Troubled Asset Relief Program. Alex Wong/Getty Images hide caption

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Alex Wong/Getty Images

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The Historic Texas Drought, Visualized

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