CT-05 elected a Democrat in 2018.

D+10.3 on 270,664 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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CT-05 — 2018 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

142,901

52.8%

Republican (R)

115,146

42.5%

All others

12,617

4.7%

Margin

D+10.3

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Margin history

CT-05 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+4.2%	337,605
2022	D	+0.2%	253,672
2020	D	+9.1%	349,524
2018	D	+10.3%	270,664
2016	D	+12.5%	309,082
2014	D	+6.5%	213,301
2012	D	+3.1%	284,757
2010	D	+7.1%	227,303
2008	D	+14.3%	302,657
2006	D	+12.9%	217,804
2004	R	−21.6%	281,447
2002	R	−11.0%	209,454
2000	D	+9.3%	221,821
1998	D	+1.5%	157,157
1996	D	+3.1%	215,130
1994	R	−20.0%	179,053
1992	R	−12.5%	240,283
1990	R	−4.5%	181,608
1988	R	−47.3%	222,341
1986	R	−21.8%	162,035
1984	R	−8.8%	240,657
1982	D	+17.6%	173,373
1980	D	+0.7%	232,943
1978	D	+4.6%	184,913
1976	R	−33.8%	236,087