Hillary Clinton is the first woman in US history to become the presidential nominee of a major political party, in 2016. She served as the sixty-seventh secretary of state--from January 21, 2009, until February 1, 2013--after nearly four decades in public service advocating on behalf of children and families as an attorney, first lady and senator. She is the author of It Takes a Village, What Happened, Hard Choices and Living History. She is a wife, mother and grandmother, and she lives in Chappaqua, New York. You can follow Hillary Clinton on Twitter @HillaryClinton or on Facebook at facebook.com/hillaryclinton.