. >> reporter: chris christie with a campaign stop at a pizza place in new hampshire. no matter how you slice it, he's got some work to do. >> thank you all for coming today. >> reporter: to be competitive in the granite state. he's made a conscious decision to criticize marco rubio. some of his supporters have no problems with making rubio a target. >> we think christie by talking negatively about rubio is a good strategy for him?
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