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Public institutional biography · as recorded through August 31, 2026

Chuck Thomsen

SenateDistrict 26RepublicanSenator

Sessions served

20

regular and special

On rosters

2011–

still serving at the cutoff

Leadership offices

0

none recorded

Chair or vice-chair roles

20

74 other memberships

Service, session by session

colour = party · one square per session
  • 2011RSD 26
  • 2012RSD 26
  • 2012S1SD 26
  • 2013RSD 26
  • 2013S1SD 26
  • 2014RSD 26
  • 2015RSD 26
  • 2016RSD 26
  • 2017RSD 26
  • 2018RSD 26
  • 2018S1SD 26
  • 2019RSD 26
  • 2020RSD 26
  • 2020S1SD 26
  • 2020S2SD 26
  • 2020S3SD 26
  • 2021RSD 26
  • 2021S1SD 26
  • 2021S2SD 26
  • 2022RSD 26
Every roster row (20 plus 6 interim)
SessionChamberDistrictPartyRoster titleDates
2011 Regular SessionSenate26RepublicanSenatorJan 10, 2011 to Jun 30, 2011
2012 Regular SessionSenate26RepublicanSenatorFeb 1, 2012 to Mar 5, 2012
2012 1st Special SessionSenate26RepublicanSenatorDec 14, 2012 to open
2013 Regular SessionSenate26RepublicanSenatorJan 14, 2013 to Jul 8, 2013
2013 1st Special SessionSenate26RepublicanSenatorSep 30, 2013 to open
2014 Regular SessionSenate26RepublicanSenatorFeb 3, 2014 to Mar 7, 2014
2015 Regular SessionSenate26RepublicanSenatorJan 12, 2015 to Jul 6, 2015
2016 Regular SessionSenate26RepublicanSenatorFeb 1, 2016 to Mar 3, 2016
2017 Regular SessionSenate26RepublicanSenatorJan 9, 2017 to Jul 7, 2017
2018 Regular SessionSenate26RepublicanSenatorFeb 5, 2018 to open
2018 1st Special SessionSenate26RepublicanSenatorMay 21, 2018 to open
2019 Regular SessionSenate26RepublicanSenatorJan 14, 2019 to Jul 14, 2019
2020 Regular SessionSenate26RepublicanSenatorFeb 3, 2020 to Mar 8, 2020
2020 1st Special SessionSenate26RepublicanSenatorJun 24, 2020 to Jun 26, 2020
2020 2nd Special SessionSenate26RepublicanSenatorAug 10, 2020 to Aug 10, 2020
2020 3rd Special SessionSenate26RepublicanSenatorDec 21, 2020 to open
2021 Regular SessionSenate26RepublicanSenatorJan 11, 2021 to open
2021 1st Special SessionSenate26RepublicanSenatorSep 20, 2021 to open
2021 2nd Special SessionSenate26RepublicanSenatorDec 13, 2021 to open
2022 Regular SessionSenate26RepublicanSenatorFeb 1, 2022 to open
2011 - 2012 InterimSenate26RepublicanSenatorJun 30, 2011 to Jan 13, 2013
2013 - 2014 InterimSenate26RepublicanSenatorJul 8, 2013 to open
2015-2016 InterimSenate26RepublicanSenatorJul 7, 2015 to open
2017-2018 InterimSenate26RepublicanSenatorJul 11, 2017 to open
2019-2020 InterimSenate26RepublicanSenatorJun 14, 2019 to open
2021-2022 InterimSenate26RepublicanSenatorJun 26, 2021 to open

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

Committee leadership

Vice-Chair · Business and Transportation · 2017RVice-Chair · Business and Transportation · 2017-2018 InterimVice-Chair · Business and Transportation · 2018RVice-Chair · Education · 2019RCo-Chair · Conduct · 2019-2020 InterimCo-Chair · Conduct · 2019-2020 InterimVice-Chair · Education · 2019-2020 InterimCo-Chair · Conduct · 2020RCo-Chair · Conduct · 2020RVice-Chair · Education · 2020RCo-Chair · Conduct · 2021RCo-Chair · Conduct · 2021RVice-Chair · Education · 2021RVice-Chair · Veterans and Emergency Preparedness · 2021RVice-Chair · Education · 2021-2022 InterimVice-Chair · Veterans and Emergency Preparedness · 2021-2022 InterimCo-Chair · Conduct · 2022RCo-Chair · Conduct · 2022RVice-Chair · Education · 2022RVice-Chair · Veterans and Emergency Preparedness · 2022R
About these figures

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

Committee memberships (74)
Environment and Natural Resources · 2011RHB 3280 · 2011RNatural Resources · 2011RWays and Means · 2011REnvironment and Natural Resources · 2011iLegislative Oversight on Columbia River Crossing · 2011iWays and Means · 2011iWays and Means Subcommittee on Natural Resources · 2011iEnvironment and Natural Resources · 2012RNatural Resources · 2012RWays and Means · 2012RBusiness and Transportation · 2013RHB 2896 · 2013RInterstate-5 Bridge Replacement Project · 2013RNatural Resources · 2013RWays and Means · 2013RApprenticeship in State Contracting (SB 782) · 2013iBusiness and Transportation · 2013iEmergency Board · 2013iGeneral Government · 2013iInterstate - 5 Bridge Replacement · 2013iNatural Resources · 2013iPollinator Health (HB 4139) · 2013iWays and Means · 2013iBusiness and Transportation · 2014RNatural Resources · 2014RWays and Means · 2014RBusiness and Transportation · 2015REducation · 2015REnvironment and Natural Resources · 2015RHB 2463 · 2015RWays and Means · 2015RBusiness and Transportation · 2015-2016 InterimEducation · 2015-2016 InterimLegislative Policy and Research · 2015-2016 InterimWays and Means · 2015-2016 InterimBusiness and Transportation · 2016REducation · 2016RWays and Means · 2016REducation · 2017RLegislative Policy and Research · 2017RWays and Means · 2017REducation · 2017-2018 InterimEducation · 2017-2018 InterimEducation · 2017-2018 InterimEmergency Board · 2017-2018 InterimLegislative Policy and Research · 2017-2018 InterimWays and Means · 2017-2018 InterimEducation · 2018REducation · 2018REmergency Board (pursuant to ORS 291.332, activities suspended during 2018 Session) · 2018RLegislative Policy and Research · 2018RWays and Means · 2018RCapital Construction · 2019REarly Childhood Education · 2019REducation · 2019RLegislative Policy and Research · 2019RStudent Success · 2019RWays and Means · 2019REducation · 2019-2020 InterimEmergency Board · 2019-2020 InterimWays and Means · 2019-2020 InterimCapital Construction · 2020REducation · 2020REmergency Board (pursuant to ORS 291.332, activities suspended during 2020 Session) · 2020RWays and Means · 2020RCapital Construction · 2021REducation · 2021RWays and Means · 2021RPublic Education Appropriation · 2021-2022 InterimWays and Means · 2021-2022 InterimCapital Construction · 2022REducation · 2022RWays and Means · 2022R

Votes in the reconstructed cases

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 Thomsen.

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, “Chuck Thomsen,” edition dated August 31, 2026. Regenerated 2026-09-04.