Question Of The Day: The Levi Factor

Levi Johnston says he knows things about Sarah Palin that could hurt her; Palin's spokeswoman has said Johnston is a liar who wants attention. Either way, is Levi Johnston a liability for Sarah Palin's political career?

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http://www.theatlantic.com/politics/archive/2009/10/question-of-the-day-the-levi-factor/29253/