Colorado State Senate District 20

Tue, Nov 3 · Represented by Lisa Cutter Democratic · Member list as of Oct 28Lisa Cutter isn’t on the ballot for this seat

Sheila LiederDemocratic4 years since first win

Last result · 2022 general (different candidates): Lisa Cutter (D) 54.2, Tim Walsh (R) 43.5, Betterose Ryan (L) 2.2

Richard (Rich) MancusoRepublican

Earlier results: Jessie Danielson (Democratic) won by 11.8 points, 2018, older linesCheri Jahn (Democratic) won by 0.6 points, 2014, older linesAll 15 elections

Side by side

Left column: LiederRight column: Mancuso

Donor-based spectrum: LiberalCentristConservativeLiederNo published score for Mancuso

How these are counted

The spectrum is a published research score, not our rating. How this works.

Past results

Votes for listed candidates: 91,069
Election day: November 8, 2022
District map: Same as today

Colorado Senate District 20, 1970 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticLisa CutterWon	Democratic	49,37554.2%	54.2%
RepublicanTim Walsh	Republican	39,65143.5%	43.5%
LibertarianBetterose Ryan	Libertarian	2,0432.2%	2.2%

Votes for listed candidates: 92,315
Election day: November 6, 2018
District map: Older district map (2012 to 2021)

Colorado Senate District 20, 1970 to 2022, 2018, every candidate
Candidate	Party	Votes and share	Share
DemocraticJessie DanielsonWon	Democratic	49,97454.1%	54.1%
RepublicanChristine Jensen	Republican	39,10242.4%	42.4%
LibertarianCharles Messick	Libertarian	3,2393.5%	3.5%

Votes for listed candidates: 71,665
Election day: November 4, 2014
District map: Older district map (2012 to 2021)

Colorado Senate District 20, 1970 to 2022, 2014, every candidate
Candidate	Party	Votes and share	Share
DemocraticCheri JahnWon(incumbent)	Democratic	33,54346.8%	46.8%
RepublicanLarry Queen	Republican	33,10446.2%	46.2%
LibertarianChris Heismann	Libertarian	5,0187.0%	7.0%

Colorado Senate District 20, 1970 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
DemocraticCheri JahnWon	Democratic	23,23852.0%	52.0%
RepublicanJohn Odom	Republican	21,41248.0%	48.0%

1970 to 2022: 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: 2022.

All elections (15 for this seat)

Votes for listed candidates: 91,069
Election day: November 8, 2022
District map: Same as today

Colorado Senate District 20, 1970 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticLisa CutterWon	Democratic	49,37554.2%	54.2%
RepublicanTim Walsh	Republican	39,65143.5%	43.5%
LibertarianBetterose Ryan	Libertarian	2,0432.2%	2.2%

Votes for listed candidates: 92,315
Election day: November 6, 2018
District map: Older district map (2012 to 2021)

Colorado Senate District 20, 1970 to 2022, 2018, every candidate
Candidate	Party	Votes and share	Share
DemocraticJessie DanielsonWon	Democratic	49,97454.1%	54.1%
RepublicanChristine Jensen	Republican	39,10242.4%	42.4%
LibertarianCharles Messick	Libertarian	3,2393.5%	3.5%

Votes for listed candidates: 71,665
Election day: November 4, 2014
District map: Older district map (2012 to 2021)

Colorado Senate District 20, 1970 to 2022, 2014, every candidate
Candidate	Party	Votes and share	Share
DemocraticCheri JahnWon(incumbent)	Democratic	33,54346.8%	46.8%
RepublicanLarry Queen	Republican	33,10446.2%	46.2%
LibertarianChris Heismann	Libertarian	5,0187.0%	7.0%

Colorado Senate District 20, 1970 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
DemocraticCheri JahnWon	Democratic	23,23852.0%	52.0%
RepublicanJohn Odom	Republican	21,41248.0%	48.0%

Votes for listed candidates: 42,004
Election day: November 7, 2006
District map: Older district map (2002 to 2011)

Colorado Senate District 20, 1970 to 2022, 2006, every candidate
Candidate	Party	Votes and share	Share
DemocraticMary Anne KellerWon(incumbent)	Democratic	23,92557.0%	57.0%
RepublicanDick Sargent	Republican	18,07943.0%	43.0%

Votes for listed candidates: 39,227
Election day: November 5, 2002
District map: Older district map (2002 to 2011)

Colorado Senate District 20, 1970 to 2022, 2002, every candidate
Candidate	Party	Votes and share	Share
DemocraticMary Anne KellerWon	Democratic	19,70750.2%	50.2%
RepublicanSteve Jensen	Republican	19,52049.8%	49.8%

Votes for listed candidates: 35,097
Election day: November 3, 1998
District map: Older district map (1992 to 2001)

Colorado Senate District 20, 1970 to 2022, 1998, every candidate
Candidate	Party	Votes and share	Share
DemocraticEdwin G. PerlmutterWon(incumbent)	Democratic	19,08354.4%	54.4%
RepublicanJerry Ditullio	Republican	16,01445.6%	45.6%

Votes for listed candidates: 29,841
Election day: November 8, 1994
District map: Older district map (1992 to 2001)

Colorado Senate District 20, 1970 to 2022, 1994, every candidate
Candidate	Party	Votes and share	Share
DemocraticEdwin G. PerlmutterWon	Democratic	16,01153.6%	53.6%
RepublicanBarry Arrington	Republican	13,83046.4%	46.4%

Votes for listed candidates: 27,491
Election day: November 6, 1990
District map: Older district map (1982 to 1991)

Colorado Senate District 20, 1970 to 2022, 1990, every candidate
Candidate	Party	Votes and share	Share
RepublicanClaire TraylorWon(incumbent)	Republican	16,86561.4%	61.4%
DemocraticRobert C. Tarnow	Democratic	10,62638.6%	38.6%

Colorado Senate District 20, 1970 to 2022, 1986, every candidate
Candidate	Party	Votes and share	Share
RepublicanClaire TraylorWon(incumbent)	Republican	22,663100.0%	100.0%

Colorado Senate District 20, 1970 to 2022, 1982, every candidate
Candidate	Party	Votes and share	Share
RepublicanClaire TraylorWon	Republican	22,479100.0%	100.0%

Colorado Senate District 20, 1970 to 2022, 1980, every candidate
Candidate	Party	Votes and share	Share
RepublicanMartha M. EzzardWon	Republican	17,837100.0%	100.0%

Votes for listed candidates: 25,124
Election day: November 2, 1976
District map: Older district map (1972 to 1981)

Colorado Senate District 20, 1970 to 2022, 1976, every candidate
Candidate	Party	Votes and share	Share
RepublicanHugh C. FowlerWon(incumbent)	Republican	13,92155.4%	55.4%
DemocraticKowal	Democratic	11,20344.6%	44.6%

Votes for listed candidates: 22,998
Election day: November 7, 1972
District map: Older district map (1972 to 1981)

Colorado Senate District 20, 1970 to 2022, 1972, every candidate
Candidate	Party	Votes and share	Share
RepublicanHugh C. FowlerWon(incumbent)	Republican	13,57859.0%	59.0%
DemocraticThomas J. Burns	Democratic	9,42041.0%	41.0%

Votes for listed candidates: 13,387
Election day: November 3, 1970
District map: Older district map (1968 to 1971)

Colorado Senate District 20, 1970 to 2022, 1970, every candidate
Candidate	Party	Votes and share	Share
DemocraticRay KogovsekWon	Democratic	8,98167.1%	67.1%
RepublicanElizabeth Ann Grace	Republican	4,40632.9%	32.9%

More about this race

Open seat

The current holder, Lisa Cutter, is not on the candidate list.

Source: coloradosos.gov (XLSX), dated Sep 15

District map

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Official results for Colorado

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Election Wrld. (2026). Colorado State Senate District 20, election results 1970 to 2022. https://www.electionwrld.com/co/senate/20. 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; 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), DIME (ODC-BY)Data as of Oct 28, 2026