Republican presidential candidate Michele Bachmann speaks at The Gift of Life movie premiere in Des Moines on Wednesday night. Jim Young/Reuters /Landov hide caption

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Texas Gov. Rick Perry speaks at the Republican Jewish Coalition 2012 Presidential Candidates Forum in Washington, D.C., last week. Alex Wong/Getty Images hide caption

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Americans are craving food grown locally: There are now more than 6,000 farmers markets across the country. Here Ron Samascott organizes apples from his orchard in Kinderhook, N.Y., at the Union Square Greenmarket in New York. Mark Lennihan/AP hide caption

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Texas Rep. Ron Paul's passionate base of support could explain a new study that finds he received more favorable treatment on Twitter than any other GOP hopeful. Chip Somodevilla/Getty Images hide caption

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Republican presidential candidate Rep. Ron Paul speaks with voters after a town hall meeting in Keene, N.H., on Nov. 21. Cheryl Senter/AP hide caption

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Concertgoers move in a spray of cooling mist as they dance amid the heat of the desert at the hipster Coachella Valley Music & Arts Festival in Indio, Calif., in April. Mike Blake/Reuters /Landov hide caption

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Republican presidential candidate Herman Cain speaks Monday at the National Press Club in Washington, D.C. During a question and answer portion of the program, Cain called the accusations of sexual harassment against him "a witch hunt."

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