CHAPEL HILL, NC - MARCH 22:  Elizabeth Edwards listens to her husband, Democratic presidential hopeful John Edwards describe the location of her cancer at a news conference March 22, 2007 in Chapel Hill, North Carolina. Elizabeth said that the former U.S. senator would continue his run for the presidency. Getty Images logo Getty Images 27 months ago

CHAPEL HILL, NC - MARCH 22: Elizabeth Edwards listens to her husband, Democratic presidential hopeful John Edwards describe the location of her cancer at a news conference March 22, 2007 in Chapel Hill, North Carolina. Elizabeth said that the former U.S. senator would continue his run for the presidency.