NATIONAL HARBOR, MD - MARCH 16: Newt Gingrich, former presidential candidate and Speaker of the U.S. House of Representatives, holds a light bulb as he speaks about the Republican Party's need to innovate at the 2013 Conservative Political Action Conference (CPAC) March 16, 2013 in National Harbor, Maryland. The American Conservative Union held its annual conference in the suburb of Washington, DC to rally conservatives and generate ideas. (Photo by Pete Marovich/Getty Images)
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