Connecticut State Senate District 19
Tue, Nov 3 · Represented by Cathy Osten Democratic · Member list as of Oct 28
Jason GuidoneRepublicanCathy OstenDemocratic · Incumbent14 years since first win
Jason Guidone 43.1Cathy Osten 56.9
Last result · 2024 generalNo published poll names both candidates.
- Last election
- Catherine A. Osten (Democratic) won by 13.8 points, 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: GuidoneRight column: Osten
- Donor-based spectrum
- LiberalCentristConservativeOstenNo published score for Guidone
- Races
- Won 0 of 1
- Won 7 of 8
- Years since first win
- Not available
- 14
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
- Cathy OstenIncumbentDemocratic(Democratic, Working Families Party, Independent Party)
- Jason GuidoneRepublican
Source: portal.ct.gov, dated Oct 28
All State Senate districts
Select a shape for details. Arrow keys move between shapes.
- Democratic
- Republican
- Independent
- Nonpartisan
- More than one party
- No member listed
Map settings
Vote in Connecticut
Trouble voting? Election Protection hotline: 866-OUR-VOTE. A nonpartisan coalition of civil-rights and voting-rights groups, not a government service. 866ourvote.org
Official results for Connecticut
History (29 elections for this seat)
- Votes for listed candidates
- 47,262
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2024)
Connecticut Senate District 19, 1968 to 2024, 2024, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon Democratic 26,90256.9% RepublicanJason Guidone Republican 20,36043.1% - Votes for listed candidates
- 35,128
- Election day
- November 8, 2022
- District map
- Older district map (2022)
Connecticut Senate District 19, 1968 to 2024, 2022, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon(incumbent) Democratic 19,67056.0% RepublicanPietro Camardella Republican 15,45844.0% - Votes for listed candidates
- 48,420
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2021)
Connecticut Senate District 19, 1968 to 2024, 2020, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon(incumbent) Democratic 25,84853.4% RepublicanSteve Weir Republican 21,68044.8% OtherWilliam H. Russell Other 8921.8% - Votes for listed candidates
- 36,956
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2021)
Connecticut Senate District 19, 1968 to 2024, 2018, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon(incumbent) Democratic 21,38957.9% RepublicanMark A. Lounsbury Republican 15,56742.1% - Votes for listed candidates
- 42,066
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2021)
Connecticut Senate District 19, 1968 to 2024, 2016, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon(incumbent) Democratic 24,61458.5% RepublicanBarbara Richardson Crouch Republican 17,45241.5% - Votes for listed candidates
- 29,472
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2021)
Connecticut Senate District 19, 1968 to 2024, 2014, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon(incumbent) Democratic 16,42655.7% RepublicanSteven Everett Republican 13,04644.3% - Votes for listed candidates
- 38,561
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2021)
Connecticut Senate District 19, 1968 to 2024, 2012, every candidate Candidate Party Votes and share Share DemocraticCatherine A. OstenWon Democratic 19,88251.6% RepublicanChristopher Coutu Republican 18,67948.4% - Votes for listed candidates
- 30,392
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2011)
Connecticut Senate District 19, 1968 to 2024, 2010, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 15,59751.3% RepublicanSean Sullivan Republican 14,79548.7% - Votes for listed candidates
- 32,458
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2011)
Connecticut Senate District 19, 1968 to 2024, 2008, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 32,458100.0% - Votes for listed candidates
- 29,615
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2011)
Connecticut Senate District 19, 1968 to 2024, 2006, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 20,61969.6% RepublicanMatthew M. Daly Republican 8,99630.4% - Votes for listed candidates
- 38,924
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2011)
Connecticut Senate District 19, 1968 to 2024, 2004, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 24,28462.4% RepublicanCatherine Marx Republican 14,64037.6% - Votes for listed candidates
- 28,580
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2011)
Connecticut Senate District 19, 1968 to 2024, 2002, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 15,44854.0% RepublicanPeter A. Nystrom Republican 13,13246.0% - Votes for listed candidates
- 32,757
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2001)
Connecticut Senate District 19, 1968 to 2024, 2000, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 23,37971.4% RepublicanJohn Paul Mereen Republican 9,37828.6% - Votes for listed candidates
- 24,580
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2001)
Connecticut Senate District 19, 1968 to 2024, 1998, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 15,70163.9% RepublicanDavid Bingham Republican 8,87936.1% - Votes for listed candidates
- 32,926
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2001)
Connecticut Senate District 19, 1968 to 2024, 1996, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon(incumbent) Democratic 20,24361.5% RepublicanDavid Bingham Republican 12,68338.5% - Votes for listed candidates
- 30,127
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2001)
Connecticut Senate District 19, 1968 to 2024, 1994, every candidate Candidate Party Votes and share Share DemocraticEdith G. PragueWon Democratic 13,40544.5% OtherKenneth L. Przybysz(incumbent) Other 11,24037.3% RepublicanGale Jones Balavender Republican 5,48218.2% - Votes for listed candidates
- 36,241
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2001)
Connecticut Senate District 19, 1968 to 2024, 1992, every candidate Candidate Party Votes and share Share DemocraticKenneth L. PrzybyszWon(incumbent) Democratic 23,47264.8% RepublicanWilliam M. Fishbone Republican 12,76935.2% - Votes for listed candidates
- 28,918
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1991)
Connecticut Senate District 19, 1968 to 2024, 1990, every candidate Candidate Party Votes and share Share DemocraticKenneth L. PrzybyszWon(incumbent) Democratic 18,82365.1% RepublicanDianne Bruneau Slopak Republican 10,09534.9% - Votes for listed candidates
- 35,596
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1991)
Connecticut Senate District 19, 1968 to 2024, 1988, every candidate Candidate Party Votes and share Share DemocraticKenneth L. PrzybyszWon(incumbent) Democratic 25,23370.9% RepublicanRaymond S. Milvae Republican 10,36329.1% - Votes for listed candidates
- 26,782
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1991)
Connecticut Senate District 19, 1968 to 2024, 1986, every candidate Candidate Party Votes and share Share DemocraticKenneth L. PrzybyszWon Democratic 16,24960.7% RepublicanEric H. Benson(incumbent) Republican 10,53339.3% - Votes for listed candidates
- 36,118
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1991)
Connecticut Senate District 19, 1968 to 2024, 1984, every candidate Candidate Party Votes and share Share RepublicanEric H. BensonWon Republican 18,74151.9% DemocraticJames J. Murphy(incumbent) Democratic 17,37748.1% - Votes for listed candidates
- 26,611
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1991)
Connecticut Senate District 19, 1968 to 2024, 1982, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 17,15064.5% RepublicanPeter J. Reenstra Republican 9,46135.5% - Votes for listed candidates
- 35,806
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1981)
Connecticut Senate District 19, 1968 to 2024, 1980, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 20,85858.3% RepublicanReginald L. Lewis Jr. Republican 14,94841.8% - Votes for listed candidates
- 26,790
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1981)
Connecticut Senate District 19, 1968 to 2024, 1978, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 16,72962.4% RepublicanThomas C. Lyon Republican 10,06137.6% - Votes for listed candidates
- 34,684
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1981)
Connecticut Senate District 19, 1968 to 2024, 1976, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 21,17261.0% RepublicanSamuel Mereen Republican 13,51239.0% - Votes for listed candidates
- 28,418
- Election day
- November 4, 1974
- District map
- Older district map (1972 to 1981)
Connecticut Senate District 19, 1968 to 2024, 1974, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 18,32764.5% RepublicanWendell B. Tamburro Republican 10,09135.5% - Votes for listed candidates
- 35,074
- Election day
- November 7, 1972
- District map
- Older district map (1972 to 1981)
Connecticut Senate District 19, 1968 to 2024, 1972, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon(incumbent) Democratic 18,39152.4% RepublicanEdna G. Gilman Republican 16,68347.6% - Votes for listed candidates
- 23,410
- Election day
- November 3, 1970
- District map
- Older district map (1966 to 1971)
Connecticut Senate District 19, 1968 to 2024, 1970, every candidate Candidate Party Votes and share Share DemocraticJames J. MurphyWon Democratic 13,59758.1% RepublicanHarry A. Jackson Republican 9,81341.9% - Votes for listed candidates
- 28,207
- Election day
- November 5, 1968
- District map
- Older district map (1966 to 1971)
Connecticut Senate District 19, 1968 to 2024, 1968, every candidate Candidate Party Votes and share Share DemocraticWilliam B. StanleyWon(incumbent) Democratic 16,76759.4% RepublicanVincent A. Laudone Republican 11,44040.6%
- 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
- 1968 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: 2024.
Download and cite
Cite this page
Election Wrld. (2026). Connecticut State Senate District 19, election results 1968 to 2024. https://www.electionwrld.com/ct/senate/19. Retrieved October 31, 2026.
Embed this seat
<iframe src="https://www.electionwrld.com/embed/ct/senate/19" title="Connecticut Senate District 19" width="100%" height="400" style="border:0;max-width:640px" loading="lazy"></iframe>
<p style="font-size:13px">Data: <a href="https://www.electionwrld.com">Election Wrld</a>, CC BY 4.0</p>Paste this into any web page. It shows the seat, its last result and the next election.
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.
District id: ocd-division/country:us/state:ct/sldu:19
DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), DIME (ODC-BY), MEDSL 2024 official precinct returnsData as of Oct 28, 2026