Former Secretary of State Hillary Rodham Clinton, left, and daughter Chelsea Clinton wave at the Clinton Global Initiative at the University of Miami on March 7. Gaston De Cardenas/AP hide caption

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Artist Nelson Shanks' 2005 portrait of former President Clinton, which hangs at the Smithsonian Institution's National Portrait Gallery. National Portrait Gallery, Nelson Shanks/AP hide caption

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Former White House intern Monica Lewinsky meets President Clinton at the White House on Dec. 16, 1996. Lewinsky, whose affair with Clinton eventually led to his impeachment, has written an article in Vanity Fair in which she talks about her life after the scandal. Getty Images hide caption

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Bill Clinton says President Obama should figure out a way to honor his promise that people who like their insurance can keep it. OZY via Facebook hide caption

itoggle caption OZY via Facebook

Chelsea Clinton in September at her father's Clinton Global Initiative in New York City. Mandel Ngan /AFP/Getty Images hide caption

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President Clinton signs the welfare reform law on Aug. 22, 1996. Stephen Jaffe /Reuters /Landov hide caption

itoggle caption Stephen Jaffe /Reuters /Landov