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| Turnout | 63.58% | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Murphy: 40–50% 50–60% 60–70% 70–80% 80–90% >90% Corey: 40–50% 50–60% 60–70% | ||||||||||||||||||||
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The2018 United States Senate election in Connecticut took place on November 6, 2018, to elect a member of theUnited States Senate to represent theState of Connecticut. IncumbentDemocratChris Murphy sought and won reelection to a second term.
The primary election was held on August 14, 2018, following a June 12 candidate filing deadline. In the November 6, 2018 general election, incumbent Chris Murphy defeatedRepublican nominee Matthew Corey with over 59% of the vote.[1] Despite this, Corey was the first Republican since1926 to win the town ofSprague.

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Matthew Corey | 99,899 | 76.54% | |
| Republican | Dominic Rapini | 30,624 | 23.46% | |
| Total votes | 130,523 | 100.00% | ||
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[21] | Safe D | October 26, 2018 |
| Inside Elections[22] | Safe D | November 1, 2018 |
| Sabato's Crystal Ball[23] | Safe D | November 5, 2018 |
| Daily Kos[24] | Safe D | September 17, 2018 |
| Fox News[25] | Likely D | September 19, 2018 |
| CNN[26] | Safe D | September 16, 2018 |
| RealClearPolitics[27] | Safe D | September 16, 2018 |
| Poll source | Date(s) administered | Sample size | Margin of error | Chris Murphy (D) | Matthew Corey (R) | Other | Undecided |
|---|---|---|---|---|---|---|---|
| Gravis Marketing[28] | October 30 – November 1, 2018 | 681 | ± 3.8% | 58% | 35% | – | 7% |
| Emerson College[29] | October 27–29, 2018 | 780 | ± 3.7% | 55% | 35% | 3% | 7% |
| Quinnipiac University[30] | October 22–28, 2018 | 1,201 | ± 4.0% | 56% | 41% | 0% | 3% |
| Quinnipiac University[31] | October 3–8, 2018 | 767 | ± 5.0% | 57% | 42% | 0% | 1% |
| Gravis Marketing[32] | August 24–27, 2018 | 606 | ± 4.0% | 54% | 37% | − | 8% |
| Quinnipiac University[33] | August 16–21, 2018 | 1,029 | ± 3.9% | 59% | 31% | 0% | 8% |
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Chris Murphy | 787,685 | 56.80% | +4.35% | |
| Working Families | Chris Murphy | 37,894 | 2.73% | +0.36% | |
| Total | Chris Murphy (incumbent) | 825,579 | 59.53% | +4.71% | |
| Republican | Matthew Corey | 545,717 | 39.35% | −3.94% | |
| Libertarian | Richard Lion | 8,838 | 0.64% | −1.02% | |
| Green | Jeff Russell | 6,618 | 0.48% | N/A | |
| Write-in | 88 | 0.00% | -0.45% | ||
| Total votes | 1,386,840 | 100.00% | N/A | ||
| Democratichold | |||||
| County | Chris Murphy Democratic | Matthew Corey Republican | Various candidates Other parties | Total votes cast | |||
|---|---|---|---|---|---|---|---|
| Fairfield | 217,601 | 61.82% | 131,321 | 37.31% | 3,083 | 0.88% | 352,005 |
| Hartford | 213,157 | 62.53% | 123,864 | 36.34% | 3,845 | 1.13% | 340,866 |
| Litchfield | 39,593 | 46.97% | 43,621 | 51.75% | 1,080 | 1.28% | 84,294 |
| Middlesex | 44,886 | 57.06% | 32,836 | 41.74% | 945 | 1.21% | 78,667 |
| New Haven | 189,456 | 59.45% | 126,004 | 39.54% | 3,226 | 0.91% | 318,686 |
| New London | 62,115 | 59.28% | 40,993 | 39.12% | 1,679 | 1.6% | 104,787 |
| Tolland | 36,713 | 55.86% | 28,046 | 42.67% | 970 | 1.47% | 65,729 |
| Windham | 22,058 | 52.76% | 19,032 | 45.52% | 716 | 1.72% | 41,806 |
| Total | 825,579 | 59.53% | 545,717 | 39.35% | 15,544 | 1.17% | 1,286,840 |
Murphy won all five congressional districts.[35]
| District | Murphy | Corey | Representative |
|---|---|---|---|
| 1st | 63% | 36% | John B. Larson |
| 2nd | 56% | 42% | Joe Courtney |
| 3rd | 61% | 37% | Rosa DeLauro |
| 4th | 62% | 37% | Jim Himes |
| 5th | 55% | 44% | Elizabeth Esty (115th Congress) |
| Jahana Hayes (116th Congress) |
Official campaign websites