Down and dirty in South Carolina as Republicans meet for the final time before the primary on Saturday.. Newt Gingrich strikes back against CNN.. Rick Santorum strikes back at Newt Gingrich.. Ron Paul argues for sound currency.. and Mitt Romney still uncomfortable about tax return releases. Just another debate in many ways.. and a brand new territory of a mean spirit in other ways. The Republicans meet. Strike. And fight. Primary on Saturday.. the gang of four may shrink by one or two.. who will it be South Carolina?