Senator for Tasmania (22 February 1994 - ), Special Minister of State (30 January 2001 - 27 January 2006), Minister for Fisheries, Forestry and Conservation (27 January 2006 - 3 December 2007), Leader of the Opposition in the Senate (3 May 2010 - 18 September 2013), Minister for Employment (18 September 2013 - 21 September 2015), Leader of the Government in the Senate (18 September 2013 - 21 September 2015).