Former President Bill Clinton, stumps for Senator Michael Bennet, D-Colo

Former President Bill Clinton, stumps for Senator Michael Bennet, D-Colo. , who is pictured with his wife Susan Gaggett and daughters Halina and Caroline at a rally

Chelsea Clinton get married ! Wedding Pictures

 Bill Clinton walks his daughter, Chelsea Clinton, down the aisle at her wedding ceremony 

Bill Clinton and wife Hillary Clinton are pictured with their daughter Chelsea Clinton and Chelsea's new husband, Marc Mezvinsky

Mark Mezvinsky and Chelsea Clinton wed Saturday 

Chelsea Clinton and Marc Mezvinsky's pre-wedding dinner

Hillary Clinton and Bill Clinton attend Chelsea Clinton and Marc Mezvinsky's pre-wedding dinner 

U.S. President Barack Obama is joined by former U.S. Presidents George W. Bush (L) and Bill Clinton (R)

U.S. President Barack Obama is joined by former U.S. Presidents George W. Bush (L) and Bill Clinton (R) as they walk out of the Rose Garden of the White House in Washington after speaking about disaster aid to Haiti January 16, 2010.
Credit: REUTERS/Larry Downing