# 2020 Connecticut Senate election

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The 2020 Connecticut State Senate election took place on November 3, 2020. Part of the biennial 2020 United States elections. Connecticut voters elected senators in all of the 36 State Senate districts. State senators serve two-year terms in the Connecticut State Senate, with all 36 of the seats up for election each cycle. The primary elections on August 11, 2020, determined which candidates appeared on the ballot for the general election. Four primary elections were cancelled, including three Republican primary elections. As a result, four Incumbent candidates ran uncontested.

## Retirements

One incumbent did not seek re-election in 2020.

### Republicans

* District 34: Len Fasano retired.

## Predictions

| Source | Ranking | As of |
| The Cook Political Report | Safe D | October 21, 2020 |

## Results

| 24 | 12 |
| Democratic | Republican |
| Parties | Parties | Candidates | Seats | Seats | Seats | Seats | Popular Vote | Popular Vote | Popular Vote |
| Parties | Parties | Candidates | 2018 | 2020 | +/- | Strength | Vote | % | Change |
| | Democratic | 35 | 22 | 24 | 2 | 61.11% | 925,028 | 54.82% | 1.72% |
| | Republican | 33 | 14 | 12 | 2 | 38.89% | 737,405 | 43.70% | 0.28% |
| | Independent Party | 4 | 0 | 0 | | 0.00% | 27,037 | 1.60% | 0.34% |
| | Working Families | 0 | 0 | 0 | | 0.00% | 16,695 | 0.99% | 0.47% |
| | Libertarian | 3 | 0 | 0 | | 0.00% | 2,567 | 0.15% | |
| | Green | 1 | 0 | 0 | | 0.00% | 952 | 0.06% | 0.02% |
| | Other parties and Write-ins | 5 | 0 | 0 | | 0.00% | 2,877 | 0.17% | |
| Total | Total | 81 | 36 | 36 | 0 | 100.00% | 1,687,529 | 100.00% | - |
Two seats flipped from Republican to Democratic, resulting in a Democratic majority of 24–12 in the Senate chamber. Making the 2020 election the second election in a row where the Democratic majority increased. Republicans have now lost 6 seats in the past 2 elections. 1 Senator, Len Fasano (R-34th), did not attempt to run for re-election.

### Composition

| Affiliation | Party (Shading indicates majority caucus) | Party (Shading indicates majority caucus) | Total | |
| Affiliation | Democratic | Republican | Total | Vacant |
| Before Election | 22 | 14 | 36 | 0 |
| After Election | 24 | 12 | 36 | 0 |
| Change | 2 | 2 | | |

### Overview
#### District 1

Incumbent Democratic senator John Fonfara has represented Connecticut's 1st State Senate District since 1997. He won re-election against Republican Barbara Ruhe and Green Party candidate Mary L. Sanders.
2020 Connecticut State Senate election, District 1 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John Fonfara (incumbent) | 20,584 | 71.78 |
| | Republican | Barbara Ruhe | 7,141 | 24.90 |
| | Green | Mary L. Sanders | 952 | 3.32 |
| Total votes | Total votes | Total votes | 28,677 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 2

After the Republican primary was cancelled, Democratic Incumbent Douglas McCroy won re-election to a third term uncontested. This was the 2nd election in a row that McCroy ran uncontested. McCroy has represented the 2nd District since 2017.
2020 Connecticut State Senate election, District 2 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Douglas McCrory (incumbent) | 33,839 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 3

Democratic Incumbent Saud Anwar cruised to re-election for a 2nd term after the Republican primary was cancelled. Anwar has represented the 2nd District since 2019. Anwar also received the nomination from the Working Families Party.
2020 Connecticut State Senate election, District 3 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Saud Anwar (incumbent) | 31,543 | 89.45 |
| | Working Families | Saud Anwar (incumbent) | 3,720 | 10.55 |
| Total votes | Total votes | Total votes | 35,263 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 4

Incumbent Democrat Steve Cassano won re-election to a sixth term over Republican challenger Matthew M. Corey, Libertarian challenger Harold S. Harris, and Kelly Green from the Reclaim party. Cassano has represented the 4th District since 2011. Cassano also received the nomination from the Working Families Party.
2020 Connecticut State Senate election, District 4 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Steve Cassano (incumbent) | 30,484 | 56.34 |
| | Republican | Matthew M. Corey | 20,737 | 38.33 |
| | Working Families | Steve Cassano (incumbent) | 1,230 | 2.27 |
| | Libertarian | Harold S. Harris | 830 | 1.53 |
| | Reclaim Party | Kelly Green | 823 | 1.52 |
| Total votes | Total votes | Total votes | 54,104 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 5

Democratic Incumbent Derek Slap won re-election to a 2nd term over Republican challenger Phillip Chabot and Independent challenger Joelle Nawrocki. Slap has represented the 5th District since 2019
2020 Connecticut State Senate election, District 5 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Derek Slap (incumbent) | 37,360 | 65.43 |
| | Republican | Phillip Chabot | 17,961 | 31.45 |
| | Independent Party | Joelle Nawrocki | 1,780 | 3.12 |
| Total votes | Total votes | Total votes | 57,101 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 6

Democratic newcomer and State Representative Rick Lopes defeated Republican Incumbent Gennaro Bizzarro and helped increase the Democratic majority. Bizzaro has represented the 6th District since 2019. Rick Lopes also received the nomination from the Working Families Party.
2020 Connecticut State Senate election, District 6 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Rick Lopes | 19,621 | 53.04 |
| | Republican | Gennaro Bizzarro (incumbent) | 16,372 | 44.26 |
| | Working Families | Rick Lopes | 1,000 | 2.70 |
| Total votes | Total votes | Total votes | 36,993 | 100.00 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

#### District 7

Republican Incumbent John A. Kissel won re-election to a 15th term after defeating Democratic newcomer Frederick A. Moffa. Kissel has represented the 7th District since 1993. Kissel also received the nomination of the Independent Party.While Moffa also received the nomination of the Working Families Party.
2020 Connecticut State Senate election, District 7 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Frederick A. Moffa | 22,890 | 43.62 |
| | Republican | John A. Kissel (incumbent) | 26,624 | 50.74 |
| | Independent Party | John A. Kissel (incumbent) | 1,703 | 3.25 |
| | Working Families | Frederick A. Moffa | 1,254 | 2.39 |
| Total votes | Total votes | Total votes | 52,471 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 8

Republican Incumbent Kevin Witkos won re-election to a seventh term after defeating Democratic newcomer Mellisa E. Osborne as well as Independent candidate Keith James McConnell. Witkos has represented the 8th District since 2009.
2020 Connecticut State Senate election, District 8 :
| Party | Party | Candidate | Votes | % |
| | Republican | Kevin Witkos (incumbent) | 29,694 | 51.54% |
| | Democratic | Melissa E. Osborne | 26,811 | 46.53% |
| | Independent Party | Keith James McConnell | 1,111 | 1.93% |
| Total votes | Total votes | Total votes | 57,616 | 100.00% |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 9

Democratic Incumbent Matt Lesser won re-election to a 2nd term after defeating Republican challenger Richie Ruglio. Lesser has represented the 9th District since 2019.Richie Ruglio also received the nomination of the Independent Party. While Matt Lesser received the nomination of the Working Families Party.
2020 Connecticut State Senate election, District 9 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Matt Lesser (incumbent) | 29,473 | 54.85 |
| | Republican | Richie Ruglio | 21,609 | 40.22 |
| | Independent Party | Richie Ruglio | 1,139 | 2.12 |
| | Working Families | Matt Lesser (incumbent) | 1,509 | 2.81 |
| Total votes | Total votes | Total votes | 53,730 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 10

Democratic Incumbent Gary Winfield won re-election to a third term after defeating Republican challenger Carlos M. Alvarado in a landslide victory. Winfield has represented the 10th District since 2017. Winfield also received the nomination of the Working Families Party.
2020 Connecticut State Senate election, District 10 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gary Winfield (incumbent) | 23,237 | 78.14 |
| | Republican | Carlos M. Alvarado | 4,081 | 13.72 |
| | Working Families | Gary Winfield (incumbent) | 1,509 | 2.81 |
| | Petitioning candidate | Jason W. Bartlett | 1,246 | 4.19 |
| Total votes | Total votes | Total votes | 30,073 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 11

Democratic Incumbent and President pro tempore Martin Looney won re-election to a 15th term after defeating Republican challenger Jameson White and Petitioning candidate Alexander Taubes in a landslide victory. Looney has represented the 11th District since 1993.
2020 Connecticut State Senate election, District 11 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Martin Looney (incumbent) | 27,336 | 74.70 |
| | Republican | Jameson White | 8,462 | 23.12 |
| | Petitioning candidate | Alexander Taubes | 795 | 2.17 |
| Total votes | Total votes | Total votes | 36,593 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 12

Democratic Incumbent Christine Cohen won re-election to a 2nd term after defeating Republican challenger Joe LaPorta. Cohen has represented the 12th District since 2019.Cohen also received the nomination of the Independent Party as well as the Working Families Party.
2020 Connecticut State Senate election, District 12 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Christine Cohen (incumbent) | 31,310 | 53.69 |
| | Republican | Joe LaPorta | 25,113 | 43.07 |
| | Independent Party | Christine Cohen (incumbent) | 1,070 | 1.83 |
| | Working Families | Christine Cohen (incumbent) | 820 | 1.41 |
| Total votes | Total votes | Total votes | 58,313 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 13

Democratic Incumbent Mary Abrams won re-election to a 2nd term after defeating Republican challenger Len Suzio. Abrams has represented the 13th District since 2019.Abrams also received the nomination of the Working Families Party.While Len Suzio also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 13 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mary Abrams (incumbent) | 23,831 | 50.42 |
| | Republican | Len Suzio | 20,799 | 44.01 |
| | Independent Party | Len Suzio | 1,532 | 3.24 |
| | Working Families | Mary Abrams (incumbent) | 1,102 | 2.33 |
| Total votes | Total votes | Total votes | 47,264 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 14

Democratic Incumbent James Maroney won re-election to a 2nd term after defeating Republican challenger Michael Southworth. Maroney has represented the 14th District since 2019. Maroney also received the nomination of the Independent and Working Families Party.
2020 Connecticut State Senate election, District 14 :
| Party | Party | Candidate | Votes | % |
| | Democratic | James Maroney (incumbent) | 28,388 | 53.06 |
| | Republican | Michael Southworth | 22,830 | 42.67 |
| | Independent Party | James Maroney (incumbent) | 1,428 | 2.67 |
| | Working Families | James Maroney (incumbent) | 854 | 1.60 |
| Total votes | Total votes | Total votes | 53,500 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 15

Democratic Incumbent Joan V. Hartley won an uncontested re-election resulting in his eleventh term, since the Republican primary was cancelled. Hartley has represented the 15th District since 2001. Hartley also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 15 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Joan V. Hartley (incumbent) | 20,367 | 81.99 |
| | Independent Party | Joan V. Hartley (incumbent) | 4,473 | 18.01 |
| Total votes | Total votes | Total votes | 24,840 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 16

Republican Incumbent Rob Sampson won re-election to a second term over Democratic challenger Jack Perry. Write in candidate Paul J. Small received 4 votes. Sampson has represented the 16th District since 2019.Jack Perry also received the nomination of the Independent Party. As well as the Working Families Party.
2020 Connecticut State Senate election, District 16 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jack Perry | 22,717 | 41.83 |
| | Republican | Rob Sampson (incumbent) | 29,209 | 53.79 |
| | Independent Party | Jack Perry | 1,537 | 2.83 |
| | Working Families | Jack Perry | 839 | 1.54 |
| | Write-in candidate | Paul J. Small | 4 | 0.01 |
| Total votes | Total votes | Total votes | 57,242 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 17

Democratic newcomer Jorge Cabrera defeated Republican Incumbent George Logan. Logan had represented the 17th District since 2017. The 17th District seat is one of two that flipped from Republican to Democrat. Logan also received the nomination of the Independent Party, while Jorge Cabrera received the nomination of the Working Families Party.
2020 Connecticut State Senate election, District 17 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jorge Cabrera | 23,810 | 49.61 |
| | Republican | George Logan (incumbent) | 21,441 | 44.68 |
| | Independent Party | George Logan (incumbent) | 1,517 | 3.16 |
| | Working Families | Jorge Cabrera | 1,224 | 2.55 |
| Total votes | Total votes | Total votes | 47,992 | 100.00 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

#### District 18

Incumbent Republican Heather Somers won re-election to a third term over Democratic newcomer Bob Statchen. Somers has represented the 18th District since 2017. Statchen also received the nomination from the Independent and Working Families Parties.
2020 Connecticut State Senate election, District 18 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Bob Statchen | 23,942 | 47.60 |
| | Republican | Heather Somers (incumbent) | 26,377 | 52.42 |
| | Independent Party | Bob Statchen | 883 | 1.75 |
| | Working Families | Bob Statchen | 677 | 1.35 |
| Total votes | Total votes | Total votes | 50,319 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 19

Democratic Incumbent Cathy Osten won re-election to a fifth term after defeating Republican challenger Steve Weir as well as Libertarian candidate William H. Russell. Osten has represented the 19th District since 2013.Osten also received the nomination of the Working Families Party.
2020 Connecticut State Senate election, District 19 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cathy Osten (incumbent) | 24,456 | 50.51 |
| | Republican | Steve Weir | 21,680 | 44.77 |
| | Working Families | Cathy Osten (incumbent) | 1,392 | 2.87 |
| | Libertarian | William H. Russell | 892 | 1.84 |
| Total votes | Total votes | Total votes | 48,420 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 20

Republican Incumbent Paul Formica won re-election to a fourth term after narrowly beating out Democratic challenger Martha Marx in a close election. Formica has represented the 20th District since 2015.Marx also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 20 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Martha Marx | 23,399 | 46.09 |
| | Republican | Paul M. Formica (incumbent) | 25,680 | 50.58 |
| | Independent Party | Joseph Taraya | 586 | 1.15 |
| | Working Families | Martha Marx | 1,104 | 2.17 |
| Total votes | Total votes | Total votes | 50,769 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 21

Republican Incumbent Kevin C. Kelly won re-election to a sixth term uncontested after the Democratic primary was cancelled. Kelly has represented the 21st District since 2011.
2020 Connecticut State Senate election, District 21 :
| Party | Party | Candidate | Votes | % |
| | Republican | Kevin C. Kelly (incumbent) | 37,602 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 22

Democratic Incumbent Marilyn Moore won re-election to a fourth term against Republican challenger Steven S. Choi as well as Libertarian candidate Stephen Dincher. Moore has represented the 22nd District since 2015.
2020 Connecticut State Senate election, District 22 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Marilyn Moore (incumbent) | 28,438 | 61.34 |
| | Republican | Steven S. Choi | 17,070 | 36.82 |
| | Libertarian | Stephen Dincher | 845 | 1.82 |
| | Write-in candidate | Devon Brown | 9 | 0.02 |
| Total votes | Total votes | Total votes | 46,362 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 23

Incumbent Democrat Dennis Bradley won re-election for a 2nd term after defeating Republican challenger Josiah Israel in a landslide victory. Bradley has represented the 23rd District since 2019.
2020 Connecticut State Senate election, District 23 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dennis Bradley (incumbent) | 20,317 | 83.53 |
| | Republican | Josiah Israel | 4,006 | 16.47 |
| Total votes | Total votes | Total votes | 24,323 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 24

Democratic Incumbent Julie Kushner won re-election to a 2nd term over Republican challenger Susan Chapman. Kushner has represented the 24th District since 2019.Kushner also received the nomination of the Working Families Party. While Chapman also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 24 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Julie Kushner (incumbent) | 23,939 | 53.63 |
| | Republican | Susan Chapman | 18,778 | 42.07 |
| | Independent Party | Susan Chapman | 827 | 1.85 |
| | Working Families | Julie Kushner (incumbent) | 1,091 | 2.44 |
| Total votes | Total votes | Total votes | 20,696 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 25

Senate Majority leader Bob Duff won re-election to a 9th term over Republican challenger Ellie Kousidis. Duff has represented the 25th District since 2005.Kousidis also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 25 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Bob Duff (Incumbent) | 29,788 | 60.30 |
| | Republican | Ellie Kousidis | 18,954 | 37.17 |
| | Independent Party | Ellie Kousidis | 1,324 | 2.60 |
| Total votes | Total votes | Total votes | 49,412 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 26

Incumbent Democratic senator Will Haskell won re-election to a 2nd term against Republican candidate Kim Healy. Haskell has represented the 26th District since 2019.Healy also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 26 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Will Haskell (Incumbent) | 38,227 | 58.40 |
| | Republican | Kim Healy | 26,095 | 39.46 |
| | Independent Party | Kim Healy | 1,454 | 2.20 |
| Total votes | Total votes | Total votes | 65,425 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 27

Incumbent Democratic senator Carlo Leone won re-election to a sixth term after defeating Republican challenger Eva Maldonado. Leone has represented the 27th District since 2011.Maldonado also received the nomination of the Independent Party. Carlo Leone would eventually resign to take a job with the Lamont administration.
2020 Connecticut State Senate election, District 27 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Carlo Leone (Incumbent) | 29,279 | 63.83 |
| | Republican | Eva Maldonado | 15,307 | 33.37 |
| | Independent Party | Eva Maldonado | 1,287 | 2.81 |
| Total votes | Total votes | Total votes | 39,457 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 28

Incumbent Republican Tony Hwang won re-election to a fourth term after beating out Democratic challenger Michelle Lapine McCabe and won re-election. Hwang has represented the 28th District since 2015.
2020 Connecticut State Senate election, District 28 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Michelle Lapine McCabe | 29,759 | 48.30 |
| | Republican | Tony Hwang (incumbent) | 31,857 | 51.70 |
| Total votes | Total votes | Total votes | 61,616 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 29

Democratic Incumbent Mae Flexer won re-election to a fourth term after defeating Republican/Independent challenger Jessica Alba. Flexer has represented the 29th District since 2015. Flexer also received the nomination of the Working Families Party. While Jessica Alba also received the nomination of the Independent Party.
2020 Connecticut State Senate election, District 29 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mae Flexer (incumbent) | 19,617 | 49.07 |
| | Republican | Jessica Alba | 17,862 | 44.68 |
| | Independent Party | Jessica Alba | 1,241 | 3.10 |
| | Working Families | Mae Flexer (incumbent) | 1,261 | 3.15 |
| Total votes | Total votes | Total votes | 39,981 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 30

Republican Incumbent Craig Miner won re-election to a fourth term after defeating Democratic challenger David Gronbach as well as Independent Joseph Bongiorno. Miner has represented the 30th District since 2015.
2020 Connecticut State Senate election, District 30 :
| Party | Party | Candidate | Votes | % |
| | Democratic | David Gronbach | 24,158 | 44.90 |
| | Republican | Craig Miner (incumbent) | 28,719 | 53.40 |
| | Independent Party | Joseph Bongiorno | 937 | 1.70 |
| Total votes | Total votes | Total votes | 53,814 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 31

Republican Incumbent Henri Martin won re-election to a fourth term after defeating Democratic challenger Mary Fortier. Martin has represented the 31st District since 2015.
2020 Connecticut State Senate election, District 31 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mary Fortier | 21,589 | 41.90 |
| | Republican | Henri Martin (incumbent) | 29,884 | 58.10 |
| Total votes | Total votes | Total votes | 51,473 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 32

Incumbent Republican Eric Berthel won re-election to a third term over Democratic challenger Jeff Desmarais. Berthel has represented the 32nd District since 2017.
2020 Connecticut State Senate election, District 32 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jeff Desmarais | 23,696 | 41.80 |
| | Republican | Eric Berthel (incumbent) | 33,005 | 58.20 |
| Total votes | Total votes | Total votes | 56,701 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 33

Incumbent Democrat Norman Needleman won re-election to a 2nd term after beating out Republican challenger Brendan Saunders to get re-elected. Needleman has represented the 33rd District since 2019.
2020 Connecticut State Senate election, District 33 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Norman Needleman (Incumbent) | 33,351 | 54.00 |
| | Republican | Brendan Saunders | 28,432 | 46.00 |
| Total votes | Total votes | Total votes | 61,783 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### District 34

Newcomer Republican Paul Cicarella Jr. defeated Democratic challenger April Capone. The winner of this election, Paul Cicarella Jr., will replace retiring Senate Minority leader and former president pro tempore, Len Fasano.
2020 Connecticut State Senate election, District 34 :
| Party | Party | Candidate | Votes | % |
| | Democratic | April Capone | 22,468 | 44.80 |
| | Republican | Paul Cicarella, Jr | 27,691 | 55.20 |
| Total votes | Total votes | Total votes | 50,159 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 35

Republican Incumbent Dan Champagne won re-election to a 2nd term after beating out Democratic challenger Lisa Thomas. Champagne has represented the 35th District since 2019. Thomas also received the nomination of the Independent and Working Families Parties.
2020 Connecticut State Senate election, District 7 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lisa Thomas | 25,871 | 45.47 |
| | Republican | Dan Champagne (incumbent) | 28,763 | 50.55 |
| | Independent Party | Lisa Thomas | 1,208 | 2.12 |
| | Working Families | Lisa Thomas | 1,059 | 1.86 |
| Total votes | Total votes | Total votes | 56,903 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

#### District 36

Democratic Incumbent Alex Kasser narrowly defeated Republican challenger Ryan Fazio to win re-election to a 2nd term in a tight race. Kasser has represented the 36th District since 2019.
2020 Connecticut State Senate election, District 36 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Alex Kasser (Incumbent) | 29,133 | 51.40 |
| | Republican | Ryan Fazio | 27,570 | 48.60 |
| Total votes | Total votes | Total votes | 56,703 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |