Minnesota State Senate District 42

Tue, Nov 3 · Represented by Bonnie Westlin Democratic · Member list as of Oct 28

Kevin PetersonRepublican

No published poll names both candidates.Last result · 2022 general: Bonnie Westlin (D) 57.7, Paul Hillen (R) 42.3

Bonnie WestlinDemocratic · Incumbent4 years since first win

Last election: Bonnie Westlin (Democratic) won by 15.4 points, 2022
On the 2026 ballot: 2 candidates

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Side by side

Left column: PetersonRight column: Westlin

Donor-based spectrum: LiberalCentristConservativeWestlinNo published score for Peterson
Races: None listed; Won 1 of 3
Years since first win: Not available; 4

How these are counted

The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.

More about this race

Candidates on the ballot

Bonnie WestlinIncumbentDemocratic
Kevin PetersonRepublican

Source: electionresultsfiles.sos.mn.gov, dated Oct 28

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More than one party
No member listed

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Official results for Minnesota

History (17 elections for this seat)

Votes for listed candidates: 41,166
Election day: November 8, 2022
District map: Older district map (2022)

Minnesota Senate District 42, 1970 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticBonnie WestlinWon	Democratic	23,75257.7%	57.7%
RepublicanPaul Hillen	Republican	17,39542.3%	42.3%
Scattered write-ins	Write-in	190.1%	0.1%

Votes for listed candidates: 50,496
Election day: November 3, 2020
District map: Older district map (2012 to 2021)

Minnesota Senate District 42, 1970 to 2022, 2020, every candidate
Candidate	Party	Votes and share	Share
DemocraticJason IsaacsonWon(incumbent)	Democratic	29,64758.7%	58.7%
RepublicanBen Schwanke	Republican	20,77141.1%	41.1%
Scattered write-ins	Write-in	780.1%	0.1%

Votes for listed candidates: 46,051
Election day: November 8, 2016
District map: Older district map (2012 to 2021)

Minnesota Senate District 42, 1970 to 2022, 2016, every candidate
Candidate	Party	Votes and share	Share
DemocraticJason IsaacsonWon	Democratic	24,96254.2%	54.2%
RepublicanCandy Sina	Republican	21,00845.6%	45.6%
Scattered write-ins	Write-in	810.2%	0.2%

Votes for listed candidates: 46,081
Election day: November 6, 2012
District map: Older district map (2012 to 2021)

Minnesota Senate District 42, 1970 to 2022, 2012, every candidate
Candidate	Party	Votes and share	Share
DemocraticBev ScalzeWon	Democratic	25,60755.6%	55.6%
RepublicanApril King	Republican	20,40044.3%	44.3%
Scattered write-ins	Write-in	740.2%	0.2%

Votes for listed candidates: 34,936
Election day: November 2, 2010
District map: Older district map (2002 to 2011)

Minnesota Senate District 42, 1970 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
RepublicanDavid HannWon(incumbent)	Republican	19,46755.7%	55.7%
DemocraticRon Case	Democratic	15,44344.2%	44.2%
Scattered write-ins	Write-in	260.1%	0.1%

Votes for listed candidates: 35,796
Election day: November 7, 2006
District map: Older district map (2002 to 2011)

Minnesota Senate District 42, 1970 to 2022, 2006, every candidate
Candidate	Party	Votes and share	Share
RepublicanDavid HannWon(incumbent)	Republican	18,54751.8%	51.8%
DemocraticCarol Bomben	Democratic	17,24948.2%	48.2%

Votes for listed candidates: 36,509
Election day: November 5, 2002
District map: Older district map (2002 to 2011)

Minnesota Senate District 42, 1970 to 2022, 2002, every candidate
Candidate	Party	Votes and share	Share
RepublicanDavid HannWon	Republican	17,96749.2%	49.2%
IndependentSherry Butcher	Independent	11,00430.1%	30.1%
DemocraticLarry Piumbroeck	Democratic	7,53820.6%	20.6%

Votes for listed candidates: 43,245
Election day: November 7, 2000
District map: Older district map (1992 to 2001)

Minnesota Senate District 42, 1970 to 2022, 2000, every candidate
Candidate	Party	Votes and share	Share
RepublicanRoy TerwilligerWon(incumbent)	Republican	28,61466.2%	66.2%
DemocraticMarilyn McKnight	Democratic	14,63133.8%	33.8%

Votes for listed candidates: 39,546
Election day: November 5, 1996
District map: Older district map (1992 to 2001)

Minnesota Senate District 42, 1970 to 2022, 1996, every candidate
Candidate	Party	Votes and share	Share
RepublicanRoy TerwilligerWon(incumbent)	Republican	28,61072.3%	72.3%
DemocraticMichael Mobley	Democratic	10,93627.6%	27.6%

Votes for listed candidates: 42,136
Election day: November 3, 1992
District map: Older district map (1992 to 2001)

Minnesota Senate District 42, 1970 to 2022, 1992, every candidate
Candidate	Party	Votes and share	Share
RepublicanRoy TerwilligerWon	Republican	26,06561.9%	61.9%
DemocraticRosemary Kostick	Democratic	16,07138.1%	38.1%

Votes for listed candidates: 40,215
Election day: November 6, 1990
District map: Older district map (1982 to 1991)

Minnesota Senate District 42, 1970 to 2022, 1990, every candidate
Candidate	Party	Votes and share	Share
RepublicanDon StormWon(incumbent)	Republican	28,62771.2%	71.2%
DemocraticJohn Cochran	Democratic	11,58828.8%	28.8%

Votes for listed candidates: 23,806
Election day: November 4, 1986
District map: Older district map (1982 to 1991)

Minnesota Senate District 42, 1970 to 2022, 1986, every candidate
Candidate	Party	Votes and share	Share
RepublicanDon StormWon(incumbent)	Republican	17,65674.2%	74.2%
DemocraticAnne Marie Reynolds	Democratic	6,15025.8%	25.8%

Votes for listed candidates: 29,564
Election day: November 2, 1982
District map: Older district map (1982 to 1991)

Minnesota Senate District 42, 1970 to 2022, 1982, every candidate
Candidate	Party	Votes and share	Share
RepublicanDon StormWon	Republican	15,34651.9%	51.9%
IndependentMeredith Hart	Independent	9,84733.3%	33.3%
OtherJohn Healy	Other	4,37114.8%	14.8%

Votes for listed candidates: 39,867
Election day: November 4, 1980
District map: Older district map (1972 to 1981)

Minnesota Senate District 42, 1970 to 2022, 1980, every candidate
Candidate	Party	Votes and share	Share
RepublicanGeorge PillsburyWon(incumbent)	Republican	23,92860.0%	60.0%
DemocraticBen Withart	Democratic	15,93940.0%	40.0%

Votes for listed candidates: 33,697
Election day: November 2, 1976
District map: Older district map (1972 to 1981)

Minnesota Senate District 42, 1970 to 2022, 1976, every candidate
Candidate	Party	Votes and share	Share
RepublicanGeorge PillsburyWon(incumbent)	Republican	17,16250.9%	50.9%
DemocraticMary Willis	Democratic	16,53549.1%	49.1%

Votes for listed candidates: 25,209
Election day: November 7, 1972
District map: Older district map (1972 to 1981)

Minnesota Senate District 42, 1970 to 2022, 1972, every candidate
Candidate	Party	Votes and share	Share
NonpartisanGeorge PillsburyWon(incumbent)	Other	14,51357.6%	57.6%
NonpartisanRaul O. Salazar	Other	10,69642.4%	42.4%

Minnesota Senate District 42, 1970 to 2022, 1970, every candidate
Candidate	Party	Votes and share	Share
NonpartisanJack DaviesWon(incumbent)	Other	4,52564.0%	64.0%
NonpartisanWes Kemp	Other	2,54036.0%	36.0%

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

Last contest in this district on file: 2022.

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Election Wrld. (2026). Minnesota State Senate District 42, election results 1970 to 2022. https://www.electionwrld.com/mn/senate/42. Retrieved October 30, 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.

District id: ocd-division/country:us/state:mn/sldu:42

DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY)Data as of Oct 28, 2026