The 2020 United States presidential election in Connecticut was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Connecticut voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Connecticut has seven electoral votes in the Electoral College.

Prior to the election, Connecticut was considered to be a state Biden would win or a safe blue state. Biden went on to win by a 20.07% margin.

Connecticut voted 16% more Democratic than the national average.

Primary elections The primary elections were originally scheduled for April 28, 2020. On March 19, they were moved to June 2 due to concerns over the COVID-19 pandemic. Then on April 17, they were further pushed back to August 11.

Republican primary The state had 28 delegates to the 2020 Republican National Convention, all going to Trump. 2020 Connecticut Republican presidential primary Candidate Votes % DelegatesDonald Trump (incumbent)71,66778.4%28 Uncommitted12,99414.2%Rocky De La Fuente (withdrawn)6,7917.4% Total91,452100%28

Democratic primary

Libertarian caucus

Voting took place from April 25–28, 2020. +Connecticut Libertarian presidential caucusCandidateRound 1Round 19Votes%TransferVotes% Jacob Hornberger 47 31.7% + 48 85 66.9% James P. Gray 23 13.8% + 19 42 33.1% Jo Jorgensen 18 10.8%- 34Eliminated in round 18 Adam Kokesh 14 8.4%- 22Eliminated in round 17 Vermin Supreme 14 8.4%- 16Eliminated in round 16 Brian Ellison 6 3.6%- 11Eliminated in round 15 Souraya Faas 4 2.4%- 8Eliminated in round 14 N.O.T.A 8 4.2%- 8Eliminated in round 13 Dan Behrman 5 3.0%- 5Eliminated in round 12 Sorinne Ardeleanu 4 2.4%- 5Eliminated in round 11 Sam Robb 4 2.4%- 5Eliminated in round 10 Arvin Vohra 4 2.4%- 4Eliminated in round 9 John Monds 4 2.4%- 4Eliminated in round 8 Ken Armstrong 1 0.6%- 3Eliminated in round 7 Phil Gray 2 1.2%- 2Eliminated in round 6 Steve Richey 1 0.6%- 1Eliminated in round 5 Erik Gerhardt 1 0.6%- 1Eliminated in round 4 Jedidiah Hill 1 0.6%- 1Eliminated in round 3 Louis Vanacore 1 0.6%- 1Eliminated in round 2 Kenneth Blevins, James Ogle, Rhett Smith 0 0.0%- 0Eliminated in round 1 Round 1 total 167 100.0% Round 9 total 167 (40 exhausted) 100.0%

General election Predictions SourceRankingAs ofThe Cook Political ReportSeptember 10, 2020Inside ElectionsSeptember 4, 2020Sabato's Crystal BallJuly 14, 2020PoliticoSeptember 8, 2020RCPNovember 3, 2020Niskanen2020 Bitecofer Model Electoral College Predictions , Niskanen Center, March 24, 2020, retrieved: April 19, 2020.July 26, 2020CNNAugust 3, 2020The EconomistSeptember 2, 2020CBS NewsAugust 16, 2020270towinAugust 2, 2020ABC NewsJuly 31, 2020NPRAugust 3, 2020NBC NewsAugust 6, 2020538September 9, 2020

Polling

Aggregate polls +Source of pollaggregationDates administeredDates updatedJoeBiden DonaldTrumpOther/UndecidedMarginFiveThirtyEightFiveThirtyEightuntil November 2, 2020November 3, 202058.6%32.4%9.0%Biden +26.3

Polls Poll source Date(s)administered Samplesize Margin DonaldTrumpJoeBidenJoJorgensenHowieHawkinsOtherUndecidedSurveyMonkey/AxiosSurveyMonkey/AxiosOct 20 – Nov 2, 20202,031 (LV)± 3.5%38%60% - - – –SwayableOct 23 – Nov 1, 2020367 (LV)± 6.2%33%64%2%1% – –SurveyMonkey/AxiosOct 1–28, 20203,782 (LV) –35%63% - - – –Sacred Heart UniversityOct 8–21, 20201,000 (A)± 3.02%26%51% - -2%20%SurveyMonkey/AxiosSep 1–30, 20201,415 (LV) –37%61% - - –2%SurveyMonkey/AxiosAug 1–31, 20201,009 (LV) –35%64% - - –1%SurveyMonkey/AxiosJul 1–31, 20201,360 (LV) –39%59% - - –2%SurveyMonkey/AxiosJun 8–30, 2020574 (LV) –32%65% - - –3%SurveyUSASurveyUSA May 19–24, 2020 808 (RV) ± 4.5%33%52% - -7%8%Quinnipiac UniversityQuinnipiac University Apr 30 – May 4, 2020 945 (RV) ± 3.2%33%56% - -3%7%Sacred Heart University/Hartford CourantMar 24 – Apr 3, 20201,000 (A)± 3.0%34% 47% - - – –Sacred Heart University/Hartford CourantFeb 24 – Mar 12, 20201,000 (A)± 3.0%36% 52% - - – –Sacred Heart University/Hartford CourantSacred Heart University/Hartford CourantDec 16, 2019 – Jan 2, 20201,000 (A)± 3.0%32% 52% - - –16%Sacred Heart University/Hartford CourantSacred Heart University/Hartford CourantSep 17 – Oct 2, 20191,000 (A)± 3.2%33% 52% - - –15%with Donald Trump and Pete Buttigieg Poll sourceDate(s)administeredSamplesizeMarginof errorDonaldTrump (R)PeteButtigieg (D)UndecidedSacred Heart University/Hartford Courant/Institute for Public PolicyDec 16, 2019 – Jan 2, 20201000 (A)± 3.%33% 47%20%Sacred Heart University/Hartford CourantSep 17 – Oct 2, 20191,000 (A)± 3.2%34% 46%20%

with Donald Trump and Kamala Harris Poll sourceDate(s)administeredSamplesizeMarginof errorDonaldTrump (R)KamalaHarris (D)UndecidedSacred Heart University/Hartford CourantSep 17 – Oct 2, 20191,000 (A)± 3.2%34% 47%19%

with Donald Trump and Bernie Sanders Poll sourceDate(s)administeredSamplesizeMarginof errorDonaldTrump (R)BernieSanders (D)UndecidedSacred Heart University/Hartford CourantMar 24 – Apr 3, 20201,000 (A)± 3.0%37% 48% –Sacred Heart University/Hartford CourantFeb 24 – Mar 12, 20201,000 (A)± 3.0%38% 50% –Sacred Heart University/Hartford CourantDec 16, 2019 – Jan 2, 20201,000 (A)± 3.0%35% 52%13%Sacred Heart University/Hartford CourantSep 17 – Oct 2, 20191,000 (A)± 3.2%35% 51%14%

with Donald Trump and Elizabeth Warren Poll sourceDate(s)administeredSamplesizeMarginof errorDonaldTrump (R)ElizabethWarren (D)UndecidedSacred Heart University/Hartford Courant/Institute for Public PolicyDec 16, 2019 – Jan 2, 20201000 (A)± 3.0%36% 49%16%Sacred Heart University/Hartford CourantSep 17 – Oct 2, 20191,000 (A)± 3.2%35% 49%16%

Results

By county County Joe BidenDemocratic Donald TrumpRepublican Various candidatesOther parties Margin Total votes cast # % # % # % # %Fairfield 297,505 62.90% 169,039 35.74% 6,446 1.36% 128,466 27.16% 472,990Hartford 283,368 63.06% 159,024 35.39% 6,944 1.55% 124,344 27.67% 449,336Litchfield 50,164 46.65% 55,601 51.70% 1,779 1.65% -5,437 -5.05%107,544Middlesex 56,848 57.30% 40,665 40.99% 1,690 1.70% 16,183 16.31% 99,203New Haven 242,630 58.05% 169,893 40.65% 5,460 1.31% 72,737 17.40% 417,983New London 79,459 56.92% 57,110 40.91% 3,035 2.17% 22,349 16.01% 139,604Tolland 44,151 54.70% 34,838 43.16% 1,725 2.14% 9,313 11.54% 80,714Windham 26,706 46.79% 29,141 51.05% 1,235 2.16% -2,435 -4.26% 57,082Totals1,080,83159.24%715,29139.21%28,3091.55%365,38920.03%1,824,280

By town Town Joe Biden Democratic Donald Trump Republican Jo Jorgensen Libertarian Green Various candidates