Defense Secretary Robert Gates talks with troops during a visit April 7 at Camp Victory in Baghdad. Chip Somodevilla/Getty Images hide caption

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Rep. Paul Ryan (R-WI) speaks during a public meeting Tuesday at Gateway Technical College in Kenosha, Wis. His plan to fundamentally restructure Medicare and cut social safety net programs like food stamps and Medicaid has at times been a tough sell as its supporters head home and meet with their constituents. Jeffrey Phelps/AP hide caption

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Earlier this year, Sen. Bob Corker (R-TN) helped introduce the bipartisan CAP Act, which would aim to cut federal spending by $7.6 trillion over 10 years. Mark Humphrey/AP hide caption

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House Budget Committee Chairman Paul Ryan (R-WI) takes questions in reaction to President Obama's speech on a federal spending plan at the Capitol on Wednesday. J. Scott Applewhite/AP hide caption

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House Budget Committee Chairman Paul Ryan says the 2012 plan is about protecting Medicare. J. Scott Applewhite/AP hide caption

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