Public institutional biography · as recorded through August 31, 2026

Diane Rosenbaum

HouseSenateDistrict 21District 42DemocraticRepresentative

Sessions served

regular and special

On rosters

2007–2016

service ended

Leadership offices

none recorded

Chair or vice-chair roles

41 other memberships

Service, session by session

colour = party · one square per session

2007RSD 21
2008 SpeHD 42
2009RSD 21
2010 SpeSD 21
2011RSD 21
2012RSD 21
2012S1SD 21
2013RSD 21
2013S1SD 21
2014RSD 21
2015RSD 21
2016RSD 21

OLIS lists more than one member for this seat in this session. The exact vacancy, appointment, or election dates are in the chamber journal and Secretary of State records, not in this roster. Sessions affected: 2007 Regular Session; other recorded holder: Kate Brown.

Every roster row (12 plus 5 interim)

Session	Chamber	District	Party	Roster title	Dates
2007 Regular Session	Senate	21	Democratic	Representative	Jan 8, 2007 to Jun 28, 2007
2008 Special Session	House	42	Democratic	Representative	Feb 4, 2008 to open
2009 Regular Session	Senate	21	Democratic	Representative	Jan 12, 2009 to Jun 29, 2009
2010 Special Session	Senate	21	Democratic	Representative	Feb 1, 2010 to Feb 25, 2010
2011 Regular Session	Senate	21	Democratic	Representative	Jan 10, 2011 to Jun 30, 2011
2012 Regular Session	Senate	21	Democratic	Representative	Feb 1, 2012 to Mar 5, 2012
2012 1st Special Session	Senate	21	Democratic	Representative	Dec 14, 2012 to open
2013 Regular Session	Senate	21	Democratic	Representative	Jan 14, 2013 to Jul 8, 2013
2013 1st Special Session	Senate	21	Democratic	Representative	Sep 30, 2013 to open
2014 Regular Session	Senate	21	Democratic	Representative	Feb 3, 2014 to Mar 7, 2014
2015 Regular Session	Senate	21	Democratic	Representative	Jan 12, 2015 to Jul 6, 2015
2016 Regular Session	Senate	21	Democratic	Representative	Feb 1, 2016 to Mar 3, 2016
2007 - 2008 Interim	House	42	Democratic	Representative	Jun 30, 2007 to Jan 11, 2009
2009 - 2010 Interim	Senate	21	Democratic	Representative	Jun 30, 2009 to Jan 9, 2011
2011 - 2012 Interim	Senate	21	Democratic	Representative	Jun 30, 2011 to Jan 13, 2013
2013 - 2014 Interim	Senate	21	Democratic	Representative	Jul 8, 2013 to open
2015-2016 Interim	Senate	21	Democratic	Representative	Jul 7, 2015 to open

OLIS session roster; membership is recorded per session, not by exact seating and departure dates

Committee leadership

Chair · Elections, Ethics and Rules · 2007R Chair · Elections, Ethics and Rules · 2007i Co-Chair · Oregon State Hospital Patient Care · 2007i Chair · Elections, Ethics and Rules · 2008 Spe Co-Chair · Oregon State Hospital Patient Care · 2008 Spe Chair · Commerce and Workforce Development · 2009R Chair · Commerce and Workforce Development · 2009i Chair · Commerce and Workforce Development · 2010 Spe Chair · Rules · 2011R Chair · Rules and Executive Appointments · 2011i Chair · Rules · 2012R Chair · Rules · 2013R Chair · Rules and Executive Appointments · 2013i Chair · Rules · 2014R Chair · Rules · 2015R Chair · Rules and Executive Appointments · 2015-2016 Interim Chair · Rules · 2016R

About these figures

Appointed by Speaker of the House (House Rule 8.05); Speaker and President jointly, or as provided by law; President of the Senate (Senate Rule 8.05).

Committee memberships (41)

Business and Labor · 2007R Revenue · 2007R Business and Labor · 2007i Legislative Administration · 2007i Legislative Assembly - Supportive Argument Committee for Ballot Measure 54 · 2007i Legislative Counsel · 2007i Revenue · 2007i Business and Labor · 2008 Spe Revenue · 2008 Spe Consumer Protection and Public Affairs · 2009R Finance and Revenue · 2009R HB 2472 · 2009R SB 973 · 2009R Ballot Measure 72 · 2009i Ballot Measures 66 and 67 · 2009i Consumer Protection and Public Affairs · 2009i Finance and Revenue · 2009i Consumer Protection and Public Affairs · 2010 Spe Finance and Revenue · 2010 Spe SB 998 · 2010 Spe SJR 41 #2 · 2010 Spe General Government · 2011R Legislative Administration · 2011R General Government, Consumer and Small Business Protection · 2011i Legislative Administration · 2011i General Government, Consumer and Small Business Protection · 2012R Finance and Revenue · 2013R Legislative Administration · 2013R Tax Credits · 2013R Finance and Revenue · 2013i Legislative Administration · 2013i Finance and Revenue · 2014R Legislative Administration · 2015R Workforce · 2015R Campaign Finance Reform · 2015-2016 Interim Judiciary · 2015-2016 Interim Legislative Administration · 2015-2016 Interim Workforce · 2015-2016 Interim Judiciary · 2016R Legislative Administration · 2016R Workforce and General Government · 2016R

Votes in the reconstructed cases

2013 special session
HB 5101 · Aye Oct 2SB 861 · Nay Oct 2SB 862 · Aye Oct 2SB 863 · Nay Oct 2HB 3601 · Nay Oct 2

About these figures

A recorded vote is a documented position on that question on that day. It is not evidence of what the member sought or conceded.

Evidence for this page

Every row comes from the Oregon Legislative Information System’s official rosters and committee memberships, observed 2026-09-01. Roster codes recorded: Sen Rosenbaum; Rep Rosenbaum.

Rosters are per session; exact seating and departure dates within a session, and the reasons for any replacement, are in the chamber journals and are not claimed here.

Nothing on this page describes campaign finance, private employment, or personal life. Those are outside the institutional record this site publishes. Cite as: Oregon Governance Atlas, “Diane Rosenbaum,” edition dated August 31, 2026. Regenerated 2026-09-04.