Newt Gingrich and Mitt Romney and the other GOP candidates squared off in the first post-South Carolina debate, and both came out swinging.
Asked why Romney, who had promised to keep the race clean, was on the attack, the former Massachusetts governor said he learned a lesson from the beating he took in South Carolina. I "had incoming from all directions. I was overwhelmed by a lot of the attacks."
He said he was "not going to sit back" and let that happen again.
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