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Another GOPer set to jump in

From NBC's Mark Murray
Former Wisconsin Gov. Tommy Thompson (R), who also served as Bush's Health and Human Services secretary, is set to formally announce he's running for president in the next couple of weeks, a spokesman for Thompson's exploratory committee tells First Read. The spokesman adds that the announcement, which will occur in both Wisconsin and Iowa, will take place in early April or thereabouts, although the details are still being ironed out.