Kentucky Sen. Rand Paul filibusters John Brennan's nomination as CIA director last week. Paul is scheduled to speak Thursday at CPAC. AP hide caption

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President Obama greets students after speaking at the University of Michigan in Ann Arbor on Jan 27. Young Republicans say they see an opportunity in 2012 to dent Obama's popularity among the youngest voters. Jewel Samad/AFP/Getty Images hide caption

itoggle caption Jewel Samad/AFP/Getty Images