- Chairman of the Social Democratic Alliance 2009-2013.
- Date of Birth: October 4th, 1942
- Party: The Social Democratic Alliance
- Member of Althingi for the Reykjavík Constituency 1978-2003, for the Reykjavík South Constituency 2003-2007 and for the Reykjavík North Constituency since 2007.
- Deputy Speaker of Althingi 1979,1983-1984 and 2003-2007.
- Member of the Social Affairs Committee 2003-2007.
- Member of the Economy and Trade Committee 1999-2007.
- Member of the General Affairs Committee 1996-1999.
- Member of the Industry Committe 1995-1999.
- Member of the Foreign Affairs Committee 1995-1996.
- Member of the Credentials Committee 1999-2003.
- Member of the Althingi Special Committee on Constitutional Affairs 1995-1997, 1999-2000 and 2004-2007.
- Member of the Icelandic Delegation to the OSCE Parliamentary Assembly 2003-2007.
- Member of the Icelandic Delegation to the IPU 1996-2003 (Vice-Chairman 2000-2003).
- Prime Minister 2009-2013.
- Minister of Social Affairs and Social Security 2007-2009.
- Minister of Social Affairs 1987-1994.