Former U.S. Sen. Rick Santorum greets voters this summer in Iowa. The Republican presidential hopeful has spent most of his professional life in politics. Chip Somodevilla/Getty Images hide caption

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Santorum: Early Political Work Influences Him Still
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Penn State Faces First Game Without 'JoePa'
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Pharmaceutical Exec To Lead Penn State Investigation
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Penn State To Appoint Investigative Committee
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Interim Coach Has 'Mixed Emotions' Leading Penn
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Penn State Fires Coach Paterno, President Spanier
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Penn State's Paterno Announces His Retirement
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Oil Lobby Pumps Up To Impress Super Committee
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A woman casts her ballot during early voting in Toledo, Ohio. Members of the silent generation are more likely to vote for Republicans than for Democrats, according to a recent study by the Pew Research Center. J.D. Pooley/Getty Images hide caption

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'Silent Generation' May Get Loud In 2012 Election
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Union posters can be found all over the Occupy Philadelphia protest site near City Hall. Protesters and local union leaders meet regularly to discuss tactics and how to involve labor.

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Unions Assume A Support Role For Occupy Movement
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Chapman Corp. is expanding to take advantage of extra business it expects to get in coming decades because of increasing production in the Marcellus Shale play. Jeff Brady/NPR hide caption

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Gas Drilling Boom Brings New Life To Steel Industry
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Canada-Gulf Pipeline Pits Jobs Against Environment
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A protester marches on Friday in New York City as part of larger demonstration focused on corporations, wealth and income distribution. Mario Tama/Getty Images hide caption

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Wall Street Protesters In It For The Long Haul
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