A pro-life group has presented a petition to the Republican contenders running for president. The petition says that the candidate will remain staunchly pro-life. So far, Mitt Romney, Jon Huntsman, and Herman Cain have said they won't sign it. Charles Krauthammer weighed in on whether that could hurt their campaigns, saying "To me what is important is not signing a pledge, it's having a position that is consistent and convincing."
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