The 2024 Connecticut State Senate election was held on November 5, 2024, alongside the 2024 United States elections. Primary elections took place on August 13, 2024.

Democrats won one new seat, increasing their supermajority to 25 of the 36 Senate seats.

Predictions SourceRankingAs of270toWinJune 21, 2024CNalysisJune 11, 2024Sabato's Crystal BallJune 18, 2024

Retirements One incumbent did not seek re-election.

Democrats District 22: Marilyn Moore retired.

Summary of results + ↓ 25 11 Democratic Republican

Parties Candidates Seats Popular vote 2022 2024 +/- Strength Vote % Change Democratic 34 24 25 1 69.44% 900,060 55.82% 2.86% Republican 32 12 11 1 30.56% 705,691 43.79% 0.28% Green 3 0 0 0.00% 3,957 0.25% 0.14% Independent 2 0 0 0.00% 1,876 0.12% 1.20% New Movement 1 0 0 0.00% 746 0.05% 0.05%Total 72 36 36 0 100.00% 1,612,330 100.00% -

Italics denote an open seat held by the incumbent party; bold text denotes a gain for a party. State Senate District Incumbent Party Elected Senator Outcome 1 Dem Dem Hold 2 Dem Dem Hold 3 Dem Dem Hold 4 Dem Dem Hold 5 Dem Dem Hold 6 Dem Dem Hold 7 Rep Rep Hold 8 Rep Dem Gain 9 Dem Dem Hold 10 Dem Dem Hold 11 Dem Dem Hold 12 Dem Dem Hold 13 Dem Dem Hold 14 Dem Dem Hold 15 Dem Dem Hold 16 Rep Rep Hold 17 Dem Dem Hold 18 Rep Rep Hold 19 Dem Dem Hold 20 Dem Dem Hold 21 Rep Rep Hold 22 Dem Sujata Gadkar-Wilcox Dem Hold 23 Dem Dem Hold 24 Dem Dem Hold 25 Dem Dem Hold 26 Dem Dem Hold 27 Dem Dem Hold 28 Rep Rep Hold 29 Dem Dem Hold 30 Rep Rep Hold 31 Rep Rep Hold 32 Rep Rep Hold 33 Dem Dem Hold 34 Rep Rep Hold 35 Rep Rep Hold 36 Rep Rep Hold

Detailed Results District 1 Incumbent Democratic Senator John Fonfara won re-election to a fifteenth term.

District 2 Incumbent Democratic Senator Douglas McCrory won re-election to a fourth full term.

District 3 Incumbent Democratic Senator Saud Anwar won re-election to a fourth term.

District 4 Incumbent Democratic Senator MD Rahman won re-election to a second term.

District 5 Incumbent Democratic Senator Derek Slap won re-election to a third full term.

District 6 Incumbent Democratic Senator Rick Lopes won re-election to a third term.

District 7 Incumbent Republican Senator John Kissel won re-election to a sixteenth full term.

District 8 Incumbent Republican Senator Lisa Seminara ran for re-election to a second term, but was defeated by Democratic nominee Paul Honig in a rematch.

District 9 Incumbent Democratic Senator Matt Lesser won re-election to a fourth term unopposed.

District 10 Incumbent Democratic Senator Gary Winfield won re-election to a sixth full term.

District 11 Incumbent Democratic Senator and President pro tempore of the Connecticut Senate Martin Looney won re-election to a seventeenth term.

District 12 Incumbent Democratic Senator Christine Cohen won re-election to a fourth term.

District 13 Incumbent Democratic Senator Jan Hochadel won re-election to a second term.

District 14 Incumbent Democratic Senator James Maroney won re-election to a fourth term.

District 15 Incumbent Democratic Senator Joan Hartley won re-election to a thirteenth term unopposed.

District 16 Incumbent Republican Senator Rob Sampson won re-election to a fourth term.

District 17 Incumbent Democratic Senator Jorge Cabrera won re-election to a third term unopposed.

District 18 Incumbent Republican Senator Heather Somers won re-election to a fifth term.

District 19 Incumbent Democratic Senator Cathy Osten won re-election to a seventh term.

District 20 Incumbent Democratic Senator Martha Marx won re-election to a second term.

District 21 Incumbent Republican Senator Kevin C. Kelly won re-election to an eighth term unopposed.

It was announced on January 7, 2025 that Governor Ned Lamont plans to appoint Kelly to the Connecticut Superior Court. Kelly did not take the oath of office the following day, and a special election will be held to fill the seat for the remainder of Kelly's term.

District 22 Incumbent Democratic Senator Marilyn Moore chose to retire instead of running for re-election to a sixth term. Democratic nominee Sujata Gadkar-Wilcox won the open seat.

District 23 Incumbent Democratic Senator Herron Gaston won re-election to a second term.

Former Democratic Senator Ernie Newton, who pled guilty to federal felony corruption charges in September 2005 and served several years in federal prison and was later arrested in 2013 for campaign finance violations, made his third unsuccessful attempt at a comeback to the General Assembly, challenging Gaston in the Democratic primary, as well as running as an independent candidate in the general election.

District 24 Incumbent Democratic Senator Julie Kushner won re-election to a fourth term.

District 25 Incumbent Democratic Senator and Majority Leader Bob Duff won re-election to an eleventh term.

District 26 Incumbent Democratic Senator Ceci Maher won re-election to a second term.

District 27 Incumbent Democratic Senator Patricia Billie Miller won re-election to a second full term.

District 28

Incumbent Republican Senator Tony Hwang won re-election to a sixth term.

District 29 Incumbent Democratic Senator Mae Flexer won re-election to a sixth term.

District 30 Incumbent Republican Senator and Minority Leader Stephen Harding won re-election to a second term.

District 31 Incumbent Republican Senator Henri Martin won re-election to a sixth term unopposed.

District 32 Incumbent Republican Senator Eric Berthel won re-election to a fourth full term.

District 33 Incumbent Democratic Senator Norman Needleman won re-election to a fourth term.

District 34 Incumbent Republican Senator Paul Cicarella won re-election to a third term.

District 35 Incumbent Republican Senator Jeff Gordon won re-election to a second term.

District 36

Incumbent Republican Senator Ryan Fazio won re-election to a third term against Nick Simmons, the former deputy Chief of Staff to governor Ned Lamont and brother of Stamford Mayor Caroline Simmons.

The previous Democratic candidate for this district, Trevor Crow, initially ran for this seat again, but dropped out after Democratic town committees in Greenwich and New Canaan selected delegates to the nominating convention who publicly supported Simmons.

Ryan Fazio had the best overperformance in the entire state, winning reelection and increasing his margin by 3% compared to Kamala Harris's 14 point win in the district.

The race was also the most expensive CT State Senate race in the history of the State. Simmons raised hundreds of thousands of dollars, including substantial contributions from outside the three municipalities in the district. By late October, he had also loaned his campaign $160,000 of his own money. Outside political committees spent additional money supporting Simmons or opposing Fazio. by early November, several independent expenditure groups had reported roughly $176,000 in spending, while the overall outside spending discussed publicly was approaching $270,000.

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