Majority Leader, Iowa State Senate, 2006-present

Senate Democratic Leader, 1997-present

Member, Democratic Party State Central Committee

Former Senator, Iowa State Senate, 1984-2016

Chair, Pottawattamie County Democratic Party, 1986-1988

Representative, Iowa State House of Representatives, 1982-1984

Former Vice Chair, Legislative Council Committee, Iowa State Senate

Former Chair, Rules and Administration Committee, Iowa State Senate

Former Chair, Subcommittee on Service, Iowa State Senate

Former Chair, Subcommittee on Studies, Iowa State Senate

Former Social Worker

Former General Laborer, Interstate Electric Supply

Member, Board of Directors, Chemical Dependency Agency

Member, Board of Directors, River Bluffs Community Mental Health Center

Former Member, Governor's Drug Treatment Licensing Board