David ​Archambault II is the 45th chairman of the Standing Rock Sioux Tribe. He emerged as a global leader for indigenous peoples' rights while leading a struggle against the Dakota Access Pipeline, and continues to be a voice for tribal sovereignty in championing protection of tribal treaty lands and natural resources. As the tribe's top elected official, Archambault seeks to find innovative ways to improve the governance of the tribe and the lives of its people. In 2014, he hosted the historic visit of President Barack Obama and First Lady Michelle Obama to the Standing Rock Reservation. The visit included a meeting with Standing Rock youth, who told of the challenges they face growing up on the reservation and their aspirations for the future. Prior to serving as chairman, Archambault worked for United Tribes Technical College, directing a project that focused on workforce development in Indian Country. He earned an associate degree from Sitting Bull College, a bachelor's degree from North Dakota State University, and a master's degree from the University of Mary.