Forrest Edward Claypool is an American politician who has held several positions in the governments of Chicago, Cook County, and the State of Illinois. He was the Chief Executive Officer of Chicago Public Schools from July 27, 2015, until December 8, 2017. Previous offices held by Claypool include Superintendent of the Chicago Park District from 1993 to 1998, Chief of Staff to Chicago Mayor Rahm Emanuel, and President of the Chicago Transit Authority. In 2007–2008, Claypool served as a key member of Barack Obama campaign's media team, in his capacity as a longtime partner of David Axelrod.