Mary Claire Cheney (; born March 14, 1969) is the younger of the two daughters of Dick Cheney, the 46th vice president of the United States and 17th United States secretary of defense, and Lynne Cheney. She is involved with a number of political action committees. She married her wife, Heather Poe, in 2012, and in 2013 was a signatory to an amicus curiae brief submitted to the U.S. Supreme Court in support of same-sex marriage during the Hollingsworth v. Perry case. Early life and education Cheney was born in Madison, Wisconsin. She attended McLean High School in McLean, Virginia, graduating in the class of 1987. Following that, she attended Colorado College, her mother and sister's alma mater, in Colorado Springs, Colorado, and graduated in 1991. She earned a graduate business degree from the University of Denver in 2002. Career In 1993, she became one of the first employees of the Colorado Rockies baseball team, working in promotions when the team began playing in Denver; thereafter, she was a public relations manager for the Coors Brewing Company, and worked as a gay outreach coordinator, helping to end a national gay boycott of Coors. She has been one of her father's top campaign aides and closest confidantes. In July 2003, she became the Director of Vice Presidential Operations for the Bush-Cheney presidential re-election campaign in 2004. Cheney was vice president of standards and practices at AOL, leaving in 2007. Personal life Mary Cheney has been with her wife, Heather Poe, since 1992. Cheney has voiced support for same-sex marriage, and has been credited with encouraging her father's approval of it, which he has publicly supported since leaving the vice presidency. In December 2006, Mary Cheney was reported to be pregnant. She and Poe were said to be "ecstatic" about the baby. "The vice president and Mrs. Cheney are looking forward with eager anticipation to the arrival of their sixth grandchild," spokesperson Lea Anne McBride said on December 5. On January 31, 2007, in a forum by Glamour Magazine at Barnard College of Columbia University, Mary Cheney stated that: "This is a baby... This is a blessing from God. It is not a political statement. It is not a prop to be used in a debate by people on either side of an issue. It is my child." She gave birth to her first child, a son, in May 2007. Cynthia Leive,