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Iowa Caucuses: Tuesday

Republican presidential candidate, former House Speaker Newt Gingrich, and his wife Callista greet Tonya Tran of Natural Nails salon during a campaign stop at the Southbridge Mall in Mason City, Iowa, Wednesday, Dec. 28, 2011. (AP Photo/Charles Dharapak)
Republican presidential candidate, former House Speaker Newt Gingrich, and his wife Callista greet Tonya Tran of Natural Nails salon during a campaign stop at the Southbridge Mall in Mason City, Iowa, Wednesday, Dec. 28, 2011. (AP Photo/Charles Dharapak)Read moreAP

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