Congress, shown gathered for President Obama's State of the Union in January, is speaking at about a grade level lower now than in 2005, according to the Sunlight Foundation. Mandel Ngan/AFP/Getty Images hide caption

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Sen. Dick Lugar, R-Ind., crosses the finish line of the 3-mile Capital Challenge charity race with Olympic marathoner Meb Keflezighi. It was Lugar's 31st race, and his last as a senator after he lost a primary challenge this month. Javaun Moradi/NPR hide caption

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The U.S. and JPMorgan Chase flags wave outside its headquarters in New York on Friday. Eduardo Munoz/Reuters /Landov hide caption

itoggle caption Eduardo Munoz/Reuters /Landov

Republican presidential candidate Mitt Romney arrives for a town hall-style meeting at Stamco Industries, a truck parts supplier, in Euclid, Ohio, on Monday. Jae C. Hong/AP hide caption

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Republican Sen. Richard Lugar (right) and state Treasurer Richard Mourdock participate in an April 11 debate in Indianapolis. Darron Cummings/AP hide caption

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U.S. Sen. Richard Lugar, R-Ind., speaks to reporters on Monday in South Bend, Ind. James Brosher/AP hide caption

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Sen. Richard Lugar, R-Ind., speaks to reporters Monday in South Bend, Ind. Lugar, a 36-year veteran of the Senate, is engulfed in a primary battle with Indiana State Treasurer Richard Mourdock, a Tea Party favorite. James Brosher/AP hide caption

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Angela Caragan's A Cupcake Co. offers gourmet cupcakes for special events. Like more than 20 million other small-business owners in the U.S., she has no employees. Courtesy of Angela Caragan hide caption

itoggle caption Courtesy of Angela Caragan

Tourists walk near shops in the Maine seaside village of Northeast Harbor. Dina Rudick/Boston Globe via Getty Images hide caption

itoggle caption Dina Rudick/Boston Globe via Getty Images

Hedge fund manager Paul Singer of Elliott Management has donated $1 million to Mitt Romney's superPAC. Lucas Jackson/Reuters/Landov hide caption

itoggle caption Lucas Jackson/Reuters/Landov

Republican Senate candidate Richard Mourdock (right) speaks with potential voters on March 31 in Evansville, Ind. Tamara Keith /NPR hide caption

itoggle caption Tamara Keith /NPR

Romney sits in a 1962 Rambler American, a 60th-birthday present from his son, on March 12, 2007, at his home in Belmont, Mass. Romney's father, George Romney, was president of American Motors Corp., which built the car. AP/Courtesy of Tagg Romney hide caption

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Republican presidential candidate Mitt Romney campaigns in Muskego, Wis., on Saturday. Steven Senne/AP hide caption

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