Connecticut State Senate elections

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State Legislatures State legislative elections, 2025 Poll opening and closing times

This page displays election information for the Connecticut State Senate.

Elections

Connecticut state senators serve two-year terms, with all seats up for election every two years. Connecticut holds elections for its legislature in even years.

2026

See also: Connecticut State Senate elections, 2026

Elections for the Connecticut State Senate will take place in 2026. The general election is on November 3, 2026.

2024

See also: Connecticut State Senate elections, 2024

Elections for the Connecticut State Senate took place in 2024. The general election was on November 5, 2024. The primary was August 13, 2024. The filing deadline was June 11, 2024.

In the 2024 elections, Democrats increased their majority in the Connecticut State Senate from 24-12 to 25-11.

Connecticut State Senate
Party		As of November 5, 2024	After November 6, 2024
	Democratic Party	24	25
	Republican Party	12	10
	Vacancy	0	1
Total		36	36

2022

See also: Connecticut State Senate elections, 2020

Elections for the Connecticut State Senate took place in 2022. The general election was on November 8, 2022. A primary was scheduled for August 9, 2022. The filing deadline was June 7, 2022.

In the 2022 elections, Democrats increased their majority in the Connecticut State Senate from 23-13 to 24-12.

Connecticut State Senate
Party		As of November 8, 2022	After November 9, 2022
	Democratic Party	23	24
	Republican Party	13	12
Total		36	36

2020

See also: Connecticut State Senate elections, 2020

Elections for the office of Connecticut State Senate took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for August 11, 2020. The filing deadline was June 11, 2020.

In the 2020 elections, Democrats increased their majority in the Connecticut State Senate from 22-14 to 24-12.

Connecticut State Senate
Party		As of November 3, 2020	After November 4, 2020
	Democratic Party	22	24
	Republican Party	14	12
Total		36	36

2018

See also: Connecticut State Senate elections, 2018

Elections for the Connecticut State Senate took place in 2018. A closed primary election took place on August 14, 2018. The general election was held on November 6, 2018. The candidate filing deadline was June 12, 2018.

In the 2018 elections, Democrats increased their majority in the Connecticut State Senate from 18-18 to 23-13.

Connecticut State Senate
Party		As of November 6, 2018	After November 7, 2018
	Democratic Party	18	23
	Republican Party	18	13
Total		36	36

2016

See also: Connecticut State Senate elections, 2016

Elections for the Connecticut State Senate took place in 2016. The primary election took place on August 9, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was June 7, 2016. All 36 seats in the Connecticut State Senate were up for election in 2016.

Heading into the election, Democrats held a 21-15 majority. Republicans flipped three seats in the election to split the chamber at 18 seats a piece for both Democrats and Republicans. Even though the chamber was tied following the 2016 general election, Democrats did not lose their state government trifecta because Lt. Gov. Nancy Wyman (D) was the tie-breaker vote in the chamber.

Connecticut State Senate
Party		As of November 7, 2016	After November 8, 2016
	Democratic Party	21	18
	Republican Party	15	18
Total		36	36

Click [show] to see election information dating back to 2000

2014 See also: Connecticut State Senate elections, 2014 Elections for the Connecticut State Senate consisted of a primary election on August 12, 2014, and a general election on November 4, 2014. The signature filing deadline for candidates wishing to run in this election was June 10, 2014. All 36 Senate seats were up for election in 2014. Heading into the election, Democrats held a 22-14 majority. Democrats lost one seat in the election, giving them a 21-15 majority. Connecticut State Senate Party As of November 3, 2014 After November 4, 2014      Democratic Party 22 21      Republican Party 14 15 Total 36 36 2012 See also: Connecticut State Senate elections, 2012 Elections for the office of Connecticut State Senate took place in 2012. The primary election was held on August 14, 2012, and the general election was held on November 6, 2012. The candidate filing deadline was June 12, 2012. All 36 Senate seats were up for election in 2012. Heading into the election, Democrats held a 22-14 majority. No partisan change occurred in the election. Connecticut State Senate Party As of November 5, 2012 After the 2012 Election      Democratic Party 22 22      Republican Party 14 14 Total 36 36 The table below details the 10 districts with the smallest margin of victory in the November 6 general election in 2012. 2012 Margin of Victory, Connecticut State Senate District Winner Margin of Victory Total Votes Top Opponent District 13 Dante Bartolomeo 0.7% 39,589 Len Suzio District 7 John A. Kissel 1.2% 43,856 Karen Jamoc District 31 Jason Welch 2.2% 40,139 Dave Roche District 19 Catherine A. Osten 3.1% 38,561 Christopher Coutu District 24 Michael McLachlan 3.4% 35,842 Jason W. Bartlett District 16 Joe Markley 4.4% 43,016 Corky Mazurek District 33 Art Linares 5.4% 49,483 James Crawford District 12 Edward Meyer 6.5% 48,624 Cindy Cartier District 30 Clark J. Chapin 9.8% 43,186 William O. Riiska District 4 Steve Cassano 13% 44,114 Cheri Ann Pelletier District 34 Len Fasano 16.1% 41,960 Steve Fontana 2010 See also: Connecticut State Senate elections, 2010 Elections for the office of Connecticut State Senate took place in 2010. The primary election was held on August 10, 2010, and the general election was held on November 2, 2010. The candidate filing deadline was June 8, 2010, for candidates of either the Republican or Democratic parties and August 4, 2010, for independents. All 36 Senate seats were up for election in 2010. Heading into the election, Democrats held a 24-12 majority. Democrats lost one seat in the election, giving them a 23-13 majority. Connecticut State Senate Party As of November 1, 2010 After the 2010 Election      Democratic Party 24 23      Republican Party 12 13 Total 36 36 In 2010, the total campaign contributions raised in senate elections was $5,157,062. The top 10 overall contributors were: 2010 Donors, Connecticut State Senate Donor Amount Public Fund $3,631,306 Public Fund $176,895 Public Funding $88,307 Senate Democrats Victory PAC $42,651 Democrats for New Leadership $38,520 Working Families Party $14,853 Democratic Senate Majority PAC of Connecticut $14,150 Senate Republican Campaign Cmte of Connecticut $11,412 Frantz, L Scott $6,500 Senate Republican Majority Cmte of Connecticut $5,195 2008 See also: Connecticut State Senate elections, 2008 Elections for the office of Connecticut State Senate consisted of a primary election on August 12, 2008, and a general election on November 4, 2008. All 36 Senate seats were up for election in 2008. During the 2008 election, the total value of contributions to Senate candidates was $5,410,734. The top 10 contributors were: 2008 Donors, Connecticut State Senate Donor Amount Public Fund $4,195,185 Senate Democrats Victory PAC $21,279 Democrats for New Leadership $18,647 House Exploratory Cmte $6,985 Democratic Senate Majority $6,937 Bridgeport Democratic Town Cmte $4,580 Simsbury Democratic Town Cmte $4,393 Connecticut Education Association $3,000 Afscme Council 4 $3,000 Michael Renzullo Senate Campaign $2,543 2006 See also: Connecticut State Senate elections, 2006 Elections for the office of Connecticut State Senate consisted of a primary election on August 8, 2006, and a general election on November 7, 2006. All 36 Senate seats were up for election in 2006. During the 2006 election, the total value of contributions to Senate candidates was $4,431,204. The top 10 contributors were: 2006 Donors, Connecticut State Senate Donor Amount Senate Republican Vision 21 $145,229 Democrats United $75,720 Lisman, Barbara L $75,020 Connecticut Lawyers for Excellence in Government $74,500 Giordano, Rick $70,000 Cmte for a Democratic Senate Majority $66,250 Schiavone, Craig $60,000 Senate Republican Golf Tournament Fund $56,500 Connecticut Republican Party $46,700 32 GOP PAC $42,000 2004 See also: Connecticut State Senate elections, 2004 Elections for the office of Connecticut State Senate consisted of a primary election on August 10, 2004, and a general election on November 2, 2004. All 36 Senate seats were up for election in 2004. During the 2004 election, the total value of contributions to Senate candidates was $4,416,892. The top 10 contributors were: 2004 Donors, Connecticut State Senate Donor Amount Ellison, Arlo $200,000 Connecticut Lawyers for Excellence in Government $71,550 Democrats United $69,750 Meyer, Edward & Patricia R $65,000 Aniskovich, William A $50,200 Cmte for a Democratic Senate Majority $45,500 Senate Democrats 2004 $39,200 Diebolt, Mark $36,727 32 GOP PAC $36,600 Democrats for Connecticut $36,000 2002 See also: Connecticut State Senate elections, 2002 Elections for the office of Connecticut State Senate consisted of a primary election on September 10, 2002, and a general election on November 5, 2002. All 36 Senate seats were up for election in 2002. During the 2002 election, the total value of contributions to Senate candidates was $3,700,656. The top 10 contributors were: 2002 Donors, Connecticut State Senate Donor Amount Democrats in Progress $89,528 Senate Democrats of Connecticut $73,065 Connecticut Lawyers for Excellence in Government $69,750 Senate Republican Golf Tournament Fund $48,500 New Republican Majority Cmte $45,783 People for Leadership $43,508 Fedele, Michael $40,000 Senate Republican Vision 21 $37,499 32 GOP PAC $34,300 Senate Republican Campaign Cmte of Connecticut $25,578 2000 See also: Connecticut State Senate elections, 2000 Elections for the office of Connecticut State Senate consisted of a primary election on September 12, 2000, and a general election on November 7, 2000. All 36 Senate seats were up for election in 2000. During the 2000 election, the total value of contributions to Senate candidates was $2,866,237. The top 10 contributors were: 2000 Donors, Connecticut State Senate Donor Amount Senate Democrats 2000 $74,750 Connecticut Lawyers for Excellence in Government $70,250 Vision PAC $61,500 New Republican Majority Cmte $59,842 Senate Republican Vision 21 $49,035 Connecticut Republican Party $46,527 People for Excellence in Government $45,600 Democrats in Progress $30,750 Senate Republican Golf Tournament Fund $29,509 Senate Republican Leadership Cmte $28,843

Historical party control

Democrats won control of the Connecticut State Senate in 1996. In 2024, they won a 25-11 majority.

The table below shows the partisan history of the Connecticut Senate following every general election from 1992 to 2024. All data from 2006 or earlier comes from Michael Dubin's Party Affiliations in the State Legislatures (McFarland Press, 2007). Data after 2006 was compiled by Ballotpedia staff.

Connecticut State Senate election results: 1992-2024

Year	'92	'94	'96	'98	'00	'02	'04	'06	'08	'10	'12	'14	'16	'18	'20	'22	'24
Democrats	20	17	19	19	21	21	24	24	24	23	22	21	18*	23	24	24	25
Republicans	16	19	17	17	15	15	12	12	12	13	14	15	18	13	12	12	11

* Democrats maintained effective control of the chamber because Lieutenant Gov. Nancy Wyman (D) could cast tie-breaking votes

Before 1992

There were eight elections between 1930 and 2022 where Republicans won control of the state Senate.

Trifecta history

A state government trifecta is a term that describes single party government, when one political party holds the governor's office and has majorities in both chambers of the legislature in a state government. Between 1992 and 2023, Connecticut was under the following types of trifecta control:

• Democratic trifecta: 2011-2023
• Republican trifecta: None
• Divided government: 1992-2010

Connecticut Party Control: 1992-2025
Fifteen years of Democratic trifectas  •  No Republican trifectas
Scroll left and right on the table below to view more years.

Year	92	93	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25
Governor	I	I	I	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
Senate	D	D	D	R	R	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
House	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D

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