Health and Human Services Secretary Kathleen Sebelius speaks as Attorney General Eric Holder listens during a news conference last October. The two plan to remain in their current jobs as President Obama's second term begins. Alex Wong/Getty Images hide caption

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Former U.S. Sen. Chuck Hagel, R-Neb., speaks at the White House on Monday after President Obama nominated him to replace Defense Secretary Leon Panetta. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images