He was succeeded as Prime Minister by David Cameron after the 2010 general election .
While serving as Prime Minister , Brown also served as the First Lord of the Treasury , the Minister for the Civil Service and the Leader of the Labour Party .
Brown was succeeded as Prime Minister by David Cameron after the 2010 general election .
While serving as Prime Minister , Brown also served as the First Lord of the Treasury , the Minister for the Civil Service and the Leader of the Labour Party .