Hans Göran Persson was the thirty-first prime minister of Sweden . He was the leader of the Swedish Social Democratic Party and a member of the Riksdag. Conceding defeat in the Swedish general election on September 17, 2006, he announced that he would resign as party leader. At an extra Party Congress in March 17, 2007 he was succeeded by Mona Sahlin. From August 2007 he is working as part time corporate lobbyist for the JKL Group.