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Rick Santorum announced his second presidential bid on Wednesday with a kickoff event in Pennsylvania. “I know what it’s like to be an underdog,” Santorum said. “Four years ago, well, no one gave us much of a chance. But we won 11 states. We got 4 million votes. And it’s not just because I stood for something. It’s because I stood for someone: the American worker.” The 57-year-old former senator so far faces competition from fellow GOP presidential hopefuls Ted Cruz, Ben Carson and Mike Huckabee.