Sen. Jim DeMint, R-S.C., speaks during to the Conservative Political Action Conference in Washington, D.C., on Feb. 9. Mandel Ngan/AFP/Getty Images hide caption

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Sen. Jon Tester, D-Mont., receives a kiss from his grandson Wednesday in Great Falls, Mont. Tester won re-election in a tight contest with Republican Rep. Denny Rehberg. Michael Albans/AP hide caption

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Annual "Biketoberfest" participants ride along Beach Street in downtown Daytona Beach, Fla., in 2010. Daytona Beach Visitors Bureau hide caption

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Voters these days often reward politicians who sit at either end of the ideological spectrum while punishing those seen as compromisers. hide caption

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Former South Carolina Republican Rep. Bob Inglis now runs the Energy and Enterprise Initiative. /Energy and Enterprise Initiative hide caption

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A collection of political direct-mail pamphlets produced by the Mammen Group. Lauren Rock/NPR hide caption

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