Chelsea Clinton, vice chair of the Clinton Foundation, walks on stage Sept. 23 while moderating the panel discussion "Valuing What Matters" during the Clinton Global Initiative in New York. She gave birth to a baby girl, her first child, three days later. Mark Lennihan/AP hide caption

itoggle caption Mark Lennihan/AP

Former Secretary of State Hillary Rodham Clinton and former President Clinton huddle under an umbrella during inaugural ceremonies for Virginia Gov. Terry McAuliffe in Richmond on Jan. 11. Patrick Semansky/AP hide caption

itoggle caption Patrick Semansky/AP

He's back! Unabashed wonk and former president Bill Clinton detangles the health care law. Danny Johnston/Associated Press hide caption

itoggle caption Danny Johnston/Associated Press

Former President Bill Clinton hugs House Minority Leader Nancy Pelosi of California as another Democrat, Sen. Barbara Boxer of California, looks on at Wednesday's ceremony naming the Environmental Protection Agency headquarters for him. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP