Oregon State Senate District 25

Next vote Tue, Nov 3, 2026 · Represented by Chris Gorsek Democratic · Member list as of Oct 28

This seat has no race on the official 2026 list.

Last election: Chris Gorsek (Democratic) won by 12.1 points, 2024
Earlier results: Chris Gorsek (Democratic) won by 4.0 points, 2020, older linesLaurie Monnesanderson (Democratic) won by 14.3 points, 2016, older linesAll 14 elections

Past results

Votes for listed candidates: 52,319
Election day: November 5, 2024
District map: Same as today

Oregon Senate District 25, 1972 to 2024, 2024, every candidate
Candidate	Party	Votes and share	Share
DemocraticChris GorsekWon	Democratic	29,25355.9%	55.9%
OtherRaymond E. Love	Other	22,93643.8%	43.8%
Scattered write-ins	Write-in	1300.3%	0.3%

Votes for listed candidates: 58,164
Election day: November 3, 2020
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2020, every candidate
Candidate	Party	Votes and share	Share
DemocraticChris GorsekWon	Democratic	30,20651.9%	51.9%
RepublicanJustin Hwang	Republican	27,88247.9%	47.9%
Scattered write-ins	Write-in	760.1%	0.1%

Votes for listed candidates: 46,010
Election day: November 8, 2016
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2016, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon(incumbent)	Democratic	25,33955.1%	55.1%
RepublicanTamie Tlustos-Arnold	Republican	18,74240.7%	40.7%
LibertarianJeffrey Ricks	Libertarian	1,8544.0%	4.0%
Scattered write-ins	Write-in	750.2%	0.2%

Votes for listed candidates: 42,952
Election day: November 6, 2012
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2012, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon(incumbent)	Democratic	22,94453.4%	53.4%
RepublicanScott Hansen	Republican	18,96244.1%	44.1%
LibertarianEugene A. Newell Jr.	Libertarian	1,0462.4%	2.4%

2024: MEDSL 2024 official precinct returns (individual_states zips), retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source
1972 to 2020: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), retrieved Oct 28, 2026. Compiled by Carl Klarner (Harvard Dataverse) from official returns; not an official source

Only part of this chamber is up in a given cycle. Which districts vote on which date is not on file. Last contest in this district on file: 2024.

All elections (14 for this seat)

Votes for listed candidates: 52,319
Election day: November 5, 2024
District map: Same as today

Oregon Senate District 25, 1972 to 2024, 2024, every candidate
Candidate	Party	Votes and share	Share
DemocraticChris GorsekWon	Democratic	29,25355.9%	55.9%
OtherRaymond E. Love	Other	22,93643.8%	43.8%
Scattered write-ins	Write-in	1300.3%	0.3%

Votes for listed candidates: 58,164
Election day: November 3, 2020
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2020, every candidate
Candidate	Party	Votes and share	Share
DemocraticChris GorsekWon	Democratic	30,20651.9%	51.9%
RepublicanJustin Hwang	Republican	27,88247.9%	47.9%
Scattered write-ins	Write-in	760.1%	0.1%

Votes for listed candidates: 46,010
Election day: November 8, 2016
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2016, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon(incumbent)	Democratic	25,33955.1%	55.1%
RepublicanTamie Tlustos-Arnold	Republican	18,74240.7%	40.7%
LibertarianJeffrey Ricks	Libertarian	1,8544.0%	4.0%
Scattered write-ins	Write-in	750.2%	0.2%

Votes for listed candidates: 42,952
Election day: November 6, 2012
District map: Older district map (2012 to 2021)

Oregon Senate District 25, 1972 to 2024, 2012, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon(incumbent)	Democratic	22,94453.4%	53.4%
RepublicanScott Hansen	Republican	18,96244.1%	44.1%
LibertarianEugene A. Newell Jr.	Libertarian	1,0462.4%	2.4%

Votes for listed candidates: 46,049
Election day: November 4, 2008
District map: Older district map (2002 to 2011)

Oregon Senate District 25, 1972 to 2024, 2008, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon(incumbent)	Democratic	27,01358.7%	58.7%
RepublicanDave Kim	Republican	19,03641.3%	41.3%

Votes for listed candidates: 49,339
Election day: November 2, 2004
District map: Older district map (2002 to 2011)

Oregon Senate District 25, 1972 to 2024, 2004, every candidate
Candidate	Party	Votes and share	Share
DemocraticLaurie MonnesandersonWon	Democratic	26,15753.0%	53.0%
RepublicanRon Sunseri	Republican	23,18247.0%	47.0%

Oregon Senate District 25, 1972 to 2024, 2000, every candidate
Candidate	Party	Votes and share	Share
RepublicanJason A. AtkinsonWon	Republican	37,636100.0%	100.0%

Oregon Senate District 25, 1972 to 2024, 1996, every candidate
Candidate	Party	Votes and share	Share
RepublicanBrady AdamsWon(incumbent)	Republican	33,090100.0%	100.0%

Oregon Senate District 25, 1972 to 2024, 1992, every candidate
Candidate	Party	Votes and share	Share
RepublicanBrady AdamsWon	Republican	31,57867.2%	67.2%
DemocraticRebecca Brown	Democratic	15,38932.8%	32.8%

Votes for listed candidates: 39,472
Election day: November 8, 1988
District map: Older district map (1982 to 1991)

Oregon Senate District 25, 1972 to 2024, 1988, every candidate
Candidate	Party	Votes and share	Share
RepublicanRonald D. GrenskyWon	Republican	24,56062.2%	62.2%
DemocraticAl Densmore	Democratic	14,70637.3%	37.3%
Scattered write-ins	Write-in	2060.5%	0.5%

Votes for listed candidates: 40,528
Election day: November 6, 1984
District map: Older district map (1982 to 1991)

Oregon Senate District 25, 1972 to 2024, 1984, every candidate
Candidate	Party	Votes and share	Share
RepublicanBill OlsonWon	Republican	21,34352.7%	52.7%
DemocraticE. D. Potts(incumbent)	Democratic	19,18047.3%	47.3%
Scattered write-ins	Write-in	50.0%	0.0%

Oregon Senate District 25, 1972 to 2024, 1980, every candidate
Candidate	Party	Votes and share	Share
DemocraticE. D. PottsWon(incumbent)	Democratic	30,61999.8%	99.8%
Scattered write-ins	Write-in	730.2%	0.2%

Oregon Senate District 25, 1972 to 2024, 1976, every candidate
Candidate	Party	Votes and share	Share
DemocraticE. D. PottsWon(incumbent)	Democratic	28,163100.0%	100.0%
Scattered write-ins	Write-in	130.1%	0.1%

Votes for listed candidates: 28,254
Election day: November 7, 1972
District map: Older district map (1972 to 1981)

Oregon Senate District 25, 1972 to 2024, 1972, every candidate
Candidate	Party	Votes and share	Share
DemocraticE. D. PottsWon(incumbent)	Democratic	18,01563.8%	63.8%
IndependentDouglas L. Dusenberry	Independent	10,23436.2%	36.2%
Scattered write-ins	Write-in	50.0%	0.0%

2024: MEDSL 2024 official precinct returns (individual_states zips), retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source

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Election Wrld. (2026). Oregon State Senate District 25, election results 1972 to 2024. https://www.electionwrld.com/or/senate/25. Retrieved October 31, 2026.

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Sources

Sources: Census TIGERweb Legislative MapServer (120th CDs layer 0, 119th CDs layer 4, 2026 SLD upper layer 1 and lower layer 2) (US Census Bureau, public domain), retrieved Oct 28, 2026; Open Civic Data division identifiers (census_autogenerated us_sldl/us_sldu and openstates state files); also (sld-recent.json): Open Civic Data division identifiers (country-us) (CC0 (repository); also (sld-recent.json): CC0 1.0), retrieved Oct 28, 2026; Open States people (current) CSVs (CC0-1.0 (Open States people data)), retrieved Oct 28, 2026, compiled by Open States volunteers and staff (rosters from state legislature sites) from official returns, not an official source; MEDSL 2024 official precinct returns (individual_states zips) (Not stated in the GitHub repository (an earlier label said "MIT (repo)", which the repository does not support). MEDSL's Harvard Dataverse records are CC0 1.0, but these GitHub files were not checksum-matched to the Dataverse files, so CC0 is not claimed for them.), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse) (CC0 1.0), retrieved Oct 28, 2026, compiled by Carl Klarner (Harvard Dataverse) from official returns, not an official source.

DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), MEDSL 2024 official precinct returnsData as of Oct 28, 2026