Hillary Rodham Clinton is the first woman in US history to become the presidential nominee of a major political party. She served as the 67th Secretary of State after nearly four decades in public service advocating on behalf of children and families as an attorney, First Lady, and US Senator. She is a wife, mother, and grandmother. Chelsea Clinton is a champion for girls and women through her advocacy, writing, and work at the Clinton Foundation. She is also an adjunct assistant professor at Columbia University's Mailman School of Public Health. She lives in New York City with her husband, their children, and their dog.