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Republican presidential candidate Rick Santorum used a phrase during CNN's Republican primary debate Monday that he may later regret.

"You can look at my record," Santorum said. "Not only have I been consistently pro-life, I have not just taken the pledge but I've taken the bullets to go out there and fight for this and lead on those issues."

Almost two years ago, abortion provider Dr. George Tiller was shot and killed with actual bullets.