Newt Gingrich

Associated Press
Missouri Republican Senate candidate, Rep. Todd Akin, R-Mo., smiles at left as former House Speaker Newt Gingrich speaks during news conference, Monday, Sept. 24, 2012, in Kirkwood, Mo. Akin is seeking to unseat incumbent Sen. Claire McCaskill, D-Mo. in the November election. (AP Photo/Jeff Roberson)

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Republican presidential candidate Newt Gingrich took to the podium in a Las Vegas honky-tonk bar to slam Mitt Romney ahead of the Feb. 4 primary in Nevada.

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