# 2020 Delaware Senate election

The 2020 Delaware Senate election was held on November 3, 2020, concurrently with the elections for the Delaware House of Representatives, to elect members to the Delaware General Assembly. 11 of the 21 seats in the Delaware Senate were up for election. Primary elections were held on September 16, 2020.
Democrats increased their majority in the Senate by gaining two seats, winning 14 seats, compared to seven seats for the Republicans.

## Retirements
### Democrats

* District 1: Harris McDowell III retired.

## Incumbents defeated
### In primary elections

* District 13: Democrat David McBride lost renomination to Marie Pinkney, who went on to win the general election.

### In the general election

* District 5: Republican Catherine Cloutier was defeated by Democrat Kyle Evans Gay.
* District 7: Republican Anthony Delcollo was defeated by Democrat Spiros Mantzavinos.

## Predictions

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

## Results summary
### Statewide

Summary of the November 3, 2020, Delaware Senate election results :
| Party | Party | Candidates | Votes | % | Seats | Seats | Seats | Seats | Seats |
| Party | Party | Candidates | Votes | % | Before | Up | Won | After | +/– |
| | Democratic | 9 | 130,663 | 55.41 | 12 | 6 | 8 | 14 | 2 |
| | Republican | 9 | 105,142 | 44.59 | 9 | 5 | 3 | 7 | 2 |
| Total | Total | Total | 235,805 | 100 | 21 | 11 | 11 | 21 | |
| Source: Delaware Elections Results, 2, 3 ||||||||||
Popular vote
Democratic
55.41%
Republican
44.59% :
Senate seats
Democratic
66.67%
Republican
33.33% :

### District

Results of the 2020 Delaware Senate election by district:
| District | Democratic | Democratic | Republican | Republican | Total | Total | Result |
| District | Votes | % | Votes | % | Votes | % | Result |
| District 1 | 16,865 | 73.30% | 6,144 | 26.70% | 23,009 | 100.00% | Democratic hold |
| District 5 | 13,475 | 52.31% | 12,283 | 47.69% | 25,758 | 100.00% | Democratic gain |
| District 7 | 10,399 | 51.35% | 9,851 | 48.65% | 20,250 | 100.00% | Democratic gain |
| District 8 | 13,281 | 100.00% | - | - | 13,281 | 100.00% | Democratic hold |
| District 9 | 12,728 | 67.07% | 6,248 | 32.93% | 18,976 | 100.00% | Democratic hold |
| District 12 | 21,606 | 100.00% | - | - | 21,606 | 100.00% | Democratic hold |
| District 13 | 14,044 | 75.84% | 4,475 | 24.16% | 18,519 | 100.00% | Democratic hold |
| District 14 | 16,492 | 59.49% | 11,229 | 40.51% | 27,721 | 100.00% | Democratic hold |
| District 15 | 11,773 | 44.66% | 14,587 | 55.34% | 26,360 | 100.00% | Republican hold |
| District 19 | - | - | 16,324 | 100.00% | 16,324 | 100.00% | Republican hold |
| District 20 | - | - | 24,001 | 100.00% | 24,001 | 100.00% | Republican hold |
| Total | 130,663 | 55.41% | 105,142 | 44.59% | 235,805 | 100.00% | |

### Closest races

Seats where the margin of victory was under 10%:
* District 7, 2.8% gain
* District 5, 4.6% gain

## Detailed results by senate district
### District 1

2020 Delaware's Senate general election, 1st district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Sarah McBride | 16,865 | 73.30% |
| | Republican | Steve Washington | 6,144 | 26.70% |
| Total votes | Total votes | Total votes | 23,009 | 100.0% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 5

2020 Delaware's Senate general election, 5th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kyle Evans Gay | 13,475 | 52.31% |
| | Republican | Catherine Cloutier (incumbent) | 12,283 | 47.69% |
| Total votes | Total votes | Total votes | 25,758 | 100.0% |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 7

2020 Delaware's Senate general election, 7th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Spiros Mantzavinos | 10,399 | 51.35% |
| | Republican | Anthony Delcollo (incumbent) | 9,851 | 48.65% |
| Total votes | Total votes | Total votes | 20,250 | 100.0% |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 8

2020 Delaware's Senate general election, 8th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | David Sokola (incumbent) | 13,281 | 100.00% |
| Total votes | Total votes | Total votes | 13,281 | 100.00% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 9

2020 Delaware's Senate general election, 9th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jack Walsh (incumbent) | 12,728 | 67.07% |
| | Republican | Todd Ruckle | 6,248 | 32.93% |
| Total votes | Total votes | Total votes | 18,976 | 100.00% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 12

2020 Delaware's Senate general election, 12th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nicole Poore (incumbent) | 21,606 | 100.00% |
| Total votes | Total votes | Total votes | 21,606 | 100.00% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 13

2020 Delaware's Senate general election, 13th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Marie Pinkney | 14,044 | 75.84% |
| | Republican | Alexander M. Homich | 4,475 | 24.16% |
| Total votes | Total votes | Total votes | 18,519 | 100.00% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 14

2020 Delaware's Senate general election, 14th district :
| Party | Party | Candidate | Votes | % |
| | Democratic | Bruce Ennis (incumbent) | 16,492 | 59.49% |
| | Republican | Craig Pugh | 11,229 | 40.51% |
| Total votes | Total votes | Total votes | 27,721 | 100.00% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 15

2020 Delaware's Senate general election, 15th district :
| Party | Party | Candidate | Votes | % |
| | Republican | David G. Lawson (incumbent) | 14,587 | 55.34% |
| | Democratic | Jacqueline Hugg | 11,773 | 44.66% |
| Total votes | Total votes | Total votes | 26,360 | 100.00% |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 19

2020 Delaware's Senate general election, 19th district :
| Party | Party | Candidate | Votes | % |
| | Republican | Brian G. Pettyjohn (incumbent) | 16,324 | 100.00% |
| Total votes | Total votes | Total votes | 16,324 | 100.00% |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 20

2020 Delaware's Senate general election, 20th district :
| Party | Party | Candidate | Votes | % |
| | Republican | Gerald Hocker (incumbent) | 24,001 | 100.00% |
| Total votes | Total votes | Total votes | 24,001 | 100.00% |
| | Republican hold | Republican hold | Republican hold | Republican hold |