Linda McMahon (center) visits a senior center in Naugatuck, Conn., this month. Jessica Hill/AP hide caption

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Mitt Romney gets a kick out of South Dakota Sen. John Thune's comments during a January rally in Dubuque, Iowa. Chip Somodevilla/Getty Images hide caption

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Sen. Rob Portman, R-Ohio, campaigns with Mitt Romney in Cincinnati on Feb. 20. Mark Lyons/Getty Images hide caption

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Mitt Romney has an offshore investment account that he set up in Bermuda 15 years ago. iStockphoto.com hide caption

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Democratic Sen. Sherrod Brown speaks in Columbus, Ohio, in May. Brown, who is up for re-election this year, says he wakes up every day "trying to figure out how to create jobs." Mark Duncan/AP hide caption

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House Speaker John Boehner, R-Ohio (left) and Senate Minority Leader Mitch McConnell, R-Ky., on Capitol Hill in February. Republicans have been quick to criticize the president for bypassing Congress with his immigration action, but they've been unusually silent on the policy itself. J. Scott Applewhite/AP hide caption

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President Obama addresses a joint session of Congress while delivering his State of the Union speech in 2011. During his first two years in office, Obama used big Democratic majorities in Congress to muscle through major legislation, but since the 2010 midterm elections, he's increasingly been stymied by a wall of GOP opposition. Chip Somodevilla/Getty Images hide caption

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Critics say U.S. Supreme Court Chief Justice John Roberts, shown in 2010, backtracked on previous pledges to give high priority to precedent in the Citizens United campaign finance case. Paul J. Richards/AFP/Getty Images hide caption

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Mitt Romney, then the governor-elect of Massachusetts, walks into the House chambers during inaugural ceremonies at the Statehouse in Boston, on Jan. 2, 2003. Elise Amendola/AP hide caption

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Mitt Romney shakes hands as he walks into the House Chambers during inaugural ceremonies at the State House in Boston in 2003. the Obama campaign sought to focus attention on Romney's tenure as Massachusetts governor. Elise Amendola/AP hide caption

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President Obama talks to German Chancellor Angela Merkel, French President Francois Hollande (upper left), NATO Secretary-General Anders Fogh Rasmussen (center) and other leaders during the official photo at Soldier Field in Chicago during the NATO summit Sunday. Jim Watson/AFP/Getty Images hide caption

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Caroline Maya, a 21-year-old college student, registers to vote for the first time at the Latinos for Obama booth outside the Grand Sierra Casino in Reno, Nev., Saturday. David Welna/NPR hide caption

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