Newt Gingrich and his wife, Callista, celebrate in Columbia, S.C.
Newt Gingrich and his wife, Callista, celebrate in Columbia, S.C. AP Photo/Paul Sancya
Newt Gingrich and his wife, Callista, celebrate in Columbia, S.C. AP Photo/Paul Sancya

Elections

March 04, 2012 4:54 PM

Gingrich challenges Santorum's conservative creds, calls Romney unconvincing

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