Republican presidential candidate Rick Santorum, center, and supporters as they prayed earlier this month in McKinney, Texas. Tom Pennington/Getty Images hide caption

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Republican presidential candidate Rick Santorum in McKinney, Texas, on Wednesday. Tom Pennington/Getty Images hide caption

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A Mitt Romney supporter holds up a sign showing her love for Romney and Denver Broncos quarterback Tim Tebow at a rally for the GOP presidential candidate at Arapahoe High School this week in Centennial, Colo. Marc Piscotty/Getty Images hide caption

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House Speaker John Boehner, R-Ohio, listening last week as President Obama (a Democrat) gave his State of the Union address. Saul Loeb/pool/Getty Images hide caption

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Rep. Ron Paul, R-Texas, during Thursday night's Republican presidential debate in Jacksonville, Fla. Paul J. Richards/AFP/Getty Images hide caption

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