# 2020 Missouri Senate election

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The 2020 Missouri Senate elections were held on November 3, 2020, to elect the 17 Missouri State Senators to the Missouri Senate. Half of the Senate's thirty-four seats are up for election every two years, with each Senator serving four-year terms. The last time that these seats were up for election was the 2016 Missouri Senate election, and the next time that these seats will be up for election will be the 2024 Missouri State Senate election.

## Predictions

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

## Results summary
### Statewide

| Party | Party | Candi- dates | Votes | Votes | Seats | Seats | Seats |
| Party | Party | Candi- dates | No. | % | No. | +/– | % |
| | Republican Party | 14 | 731,386 | 53.38% | 10 | | 58.82% |
| | Democratic Party | 13 | 598,526 | 43.68% | 7 | | 41.18% |
| | Libertarian Party | 2 | 24,717 | 1.80% | 0 | | 0.00% |
| | Green Party | 1 | 15,383 | 1.12% | 0 | | 0.00% |
| | Write-Ins | 3 | 90 | 0.00% | 0 | | 0.00% |
| Total | Total | 29 | 1,370,102 | 100.00% | 17 | | 100.00% |

### District

Results of the 2020 Missouri State Senate elections by district:
| District | Republican | Republican | Democratic | Democratic | Others | Others | Total | Total | Result |
| District | Votes | % | Votes | % | Votes | % | Votes | % | Result |
| District 1 | 43,495 | 44.57% | 54,095 | 55.43% | - | - | 97,590 | 100.00% | Democratic hold |
| District 3 | 65,686 | 100.00% | - | - | - | - | 65,686 | 100.00% | Republican hold |
| District 5 | 8,349 | 12.90% | 56,379 | 87.10% | - | - | 64,728 | 100.00% | Democratic hold |
| District 7 | - | - | 70,586 | 82.09% | 15,401 | 17.91% | 85,987 | 100.00% | Democratic hold |
| District 9 | 11,026 | 17.64% | 51,463 | 82.36% | - | - | 62,489 | 100.00% | Democratic hold |
| District 11 | - | - | 50,065 | 100.00% | - | - | 50,065 | 100.00% | Democratic hold |
| District 13 | - | - | 64,191 | 87.56% | 9,122 | 12.44% | 73,313 | 100.00% | Democratic hold |
| District 15 | 61,172 | 53.99% | 52,132 | 46.01% | - | - | 113,304 | 100.00% | Republican hold |
| District 17 | 45,141 | 46.62% | 51,690 | 53.38% | - | - | 96,831 | 100.00% | Democratic hold |
| District 19 | 50,570 | 51.60% | 47,367 | 48.33% | 72 | 0.07% | 98,009 | 100.00% | Republican hold |
| District 21 | 61,698 | 79.82% | - | - | 15,595 | 20.17% | 77,293 | 100.00% | Republican hold |
| District 23 | 57,988 | 57.25% | 43,306 | 42.75% | - | - | 101,294 | 100.00% | Republican hold |
| District 25 | 58,215 | 100.00% | - | - | - | - | 58,215 | 100.00% | Republican hold |
| District 27 | 63,644 | 76.88% | 19,135 | 23.12% | - | - | 82,779 | 100.00% | Republican hold |
| District 29 | 75,582 | 100.00% | - | - | - | - | 75,582 | 100.00% | Republican hold |
| District 31 | 63,929 | 71.42% | 25,584 | 28.58% | - | - | 89,513 | 100.00% | Republican hold |
| District 33 | 64,891 | 83.81% | 12,533 | 16.19% | - | - | 77,424 | 100.00% | Republican hold |
| Total | 731,386 | 53.38% | 598,526 | 43.68% | 40,190 | 2.93% | 1,370,102 | 100.00% | |

### Close races

Districts where the margin of victory was under 10%:
* District 15, 7.98%
* District 17, 6.74%
* District 19, 3.27%

## District 1
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Doug Beck | 26,601 | 100.0% |
| Total votes | Total votes | Total votes | 26,601 | 100.0% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | David Lenihan | 7,299 | 66.1% |
| | Republican | Mitchell Kohlberg | 3,744 | 33.9% |
| Total votes | Total votes | Total votes | 11,043 | 100.0% |

### Results

Missouri's 1st State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Doug Beck | 54,095 | 55.43% | +2.34% |
| | Republican | David Lenihan | 43,495 | 44.57% | −2.34% |
| Margin of victory | Margin of victory | Margin of victory | 10,600 | 10.86% | |
| Total votes | Total votes | Total votes | 97,590 | 100.0% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 3
### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Elaine Freeman Gannon | 10,646 | 42.09% |
| | Republican | Joshua Barrett | 9,211 | 36.41% |
| | Republican | Kent Scism | 5,437 | 21.50% |
| Total votes | Total votes | Total votes | 25,294 | 100.0% |

### Results

Missouri's 3rd State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Elaine Freeman Gannon | 65,686 | 100% | +18.75% |
| Margin of victory | Margin of victory | Margin of victory | 65,686 | 100% | |
| Total votes | Total votes | Total votes | 65,686 | 100.0% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 5
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Steve Roberts | 12,293 | 35.43% |
| | Democratic | Megan Ellyia Green | 11,241 | 32.40% |
| | Democratic | Michelle Sherod | 7,817 | 22.53% |
| | Democratic | William C. (Bill) Haas | 2,068 | 5.96% |
| | Democratic | Jeremiah Church | 893 | 2.57% |
| | Democratic | McFarlane E. Duncan | 387 | 1.11% |
| Total votes | Total votes | Total votes | 35,688 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Michael Hebron | 989 | 100% |
| Total votes | Total votes | Total votes | 989 | 100% |

### Results

Missouri's 5th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Steve Roberts | 56,379 | 87.10% | +1.80% |
| | Republican | Michael Hebron | 8,349 | 12.90% | −1.80% |
| Margin of victory | Margin of victory | Margin of victory | 48,030 | 74.20% | |
| Total votes | Total votes | Total votes | 64,728 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 7
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Greg Razer | 21,042 | 68.99% |
| | Democratic | Michael R. Brown | 9,456 | 31.01% |
| Total votes | Total votes | Total votes | 30,498 | 100% |

### Green primary
#### Primary results

Green primary results :
| Party | Party | Candidate | Votes | % |
| | Green | Nathan Kline | 46 | 100% |
| Total votes | Total votes | Total votes | 46 | 100% |

### Results

Missouri's 7th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Greg Razer | 70,586 | 82.09% | +2.86% |
| | Green | Nathan Kline | 15,383 | 17.89% | N/A |
| | N/A | Write-Ins | 18 | 0.02% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 55,203 | 64.20% | |
| Total votes | Total votes | Total votes | 85,987 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 9
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Barbara Anne Washington | 17,937 | 88.27% |
| | Democratic | Ryan Myers | 2,383 | 11.73% |
| Total votes | Total votes | Total votes | 20,320 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | David Martin | 2,637 | 100% |
| Total votes | Total votes | Total votes | 2,637 | 100% |

### Results

Missouri's 9th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Barbara Anne Washington | 51,463 | 82.36% | −17.64% |
| | Republican | David Martin | 11,026 | 17.64% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 40,437 | 64.72% | |
| Total votes | Total votes | Total votes | 62,489 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 11
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | John Joseph Rizzo (incumbent) | 12,012 | 100% |
| Total votes | Total votes | Total votes | 12,012 | 100% |

### Results

Missouri's 11th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | John Joseph Rizzo (incumbent) | 50,065 | 100% | +47.83% |
| Margin of victory | Margin of victory | Margin of victory | 50,065 | 100% | |
| Total votes | Total votes | Total votes | 50,065 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 13
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Angela Walton Mosley | 13,580 | 41.21% |
| | Democratic | Tommie Pierson Jr | 13,219 | 40.11% |
| | Democratic | Alan (Al) Green | 6,156 | 18.68% |
| Total votes | Total votes | Total votes | 32,955 | 100% |

### Libertarian primary
#### Primary results

Libertarian primary results :
| Party | Party | Candidate | Votes | % |
| | Libertarian | Jeff Coleman | 83 | 100% |
| Total votes | Total votes | Total votes | 83 | 100% |

### Results

Missouri's 13th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Angela Walton Mosley | 64,191 | 87.56% | −12.44% |
| | Libertarian | Jeff Coleman | 9,122 | 12.44% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 55,069 | 75.12% | |
| Total votes | Total votes | Total votes | 73,313 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 15
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Deb Lavender | 27,050 | 100% |
| Total votes | Total votes | Total votes | 27,050 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Andrew Koenig (incumbent) | 15,519 | 100% |
| Total votes | Total votes | Total votes | 15,519 | 100% |

### Results

Missouri's 15th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Andrew Koenig (incumbent) | 61,172 | 53.99% | −7.04% |
| | Democratic | Deb Lavender | 52,132 | 46.01% | +7.07% |
| Margin of victory | Margin of victory | Margin of victory | 9,040 | 7.98% | |
| Total votes | Total votes | Total votes | 113,304 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 17
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lauren Arthur | 16,354 | 100% |
| Total votes | Total votes | Total votes | 16,354 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Mickey Younghanz | 12,634 | 100% |
| Total votes | Total votes | Total votes | 12,634 | 100% |

### Results

Missouri's 17th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Lauren Arthur | 51,690 | 53.38% | −7.88% |
| | Republican | Mickey Younghanz | 45,141 | 46.62% | +7.88% |
| Margin of victory | Margin of victory | Margin of victory | 6,549 | 6.76% | |
| Total votes | Total votes | Total votes | 96,831 | 100% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 19
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Judy Baker | 18,623 | 100% |
| Total votes | Total votes | Total votes | 18,623 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Caleb Rowden (incumbent) | 15,010 | 100% |
| Total votes | Total votes | Total votes | 15,010 | 100% |

### Results

Missouri's 19th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Caleb Rowden (incumbent) | 50,570 | 51.60% | +0.39% |
| | Democratic | Judy Baker | 47,367 | 48.33% | −0.45% |
| | N/A | Write-Ins | 72 | 0.07% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 3,203 | 3.27% | |
| Total votes | Total votes | Total votes | 98,009 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 21
### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Denny Hoskins (incumbent) | 21,430 | 100% |
| Total votes | Total votes | Total votes | 21,430 | 100% |

### Libertarian primary
#### Primary results

Libertarian primary results :
| Party | Party | Candidate | Votes | % |
| | Libertarian | Mark Bliss | 151 | 100% |
| Total votes | Total votes | Total votes | 151 | 100% |

### Results

Missouri's 21st State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Denny Hoskins (incumbent) | 61,698 | 79.82% | +12.19% |
| | Libertarian | Mark Bliss | 15,595 | 20.18% | +14.70% |
| Margin of victory | Margin of victory | Margin of victory | 46,103 | 59.64% | |
| Total votes | Total votes | Total votes | 77,293 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 23
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Richard Orr | 14,370 | 100% |
| Total votes | Total votes | Total votes | 14,370 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Bill Eigel (incumbent) | 15,018 | 71.29% |
| | Republican | Eric Wulff | 3,310 | 15.71% |
| | Republican | Dan O'Connell | 2,737 | 12.99% |
| Total votes | Total votes | Total votes | 21,065 | 100% |

### Results

Missouri's 23rd State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Bill Eigel (incumbent) | 57,988 | 57.25% | −2.91% |
| | Democratic | Richard Orr | 43,306 | 42.75% | +6.10% |
| Margin of victory | Margin of victory | Margin of victory | 14,682 | 14.50% | |
| Total votes | Total votes | Total votes | 101,294 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 25
### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jason Bean | 12,791 | 46.18% |
| | Republican | Jeff Shawan | 5,765 | 20.81% |
| | Republican | Eddy Justice | 4,920 | 17.76% |
| | Republican | Stephen Carroll Cookson | 4,223 | 15.25% |
| Total votes | Total votes | Total votes | 27,699 | 100% |

### Results

Missouri's 25th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Jason Bean | 58,215 | 100% | +30.65% |
| Margin of victory | Margin of victory | Margin of victory | 58,215 | 100% | |
| Total votes | Total votes | Total votes | 58,215 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 27
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Donnie Owens | 4,176 | 100% |
| Total votes | Total votes | Total votes | 4,176 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Holly Rehder | 16,839 | 50.21% |
| | Republican | Kathy Swan | 16,698 | 49.79% |
| Total votes | Total votes | Total votes | 33,537 | 100% |

### Results

Missouri's 27th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Holly Rehder | 63,644 | 76.88% | +2.44% |
| | Democratic | Donnie Owens | 19,135 | 23.12% | −2.44% |
| Margin of victory | Margin of victory | Margin of victory | 44,509 | 53.76% | |
| Total votes | Total votes | Total votes | 82,779 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 29
### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Moon | 17,781 | 52.49% |
| | Republican | David Cole | 16,093 | 47.51% |
| Total votes | Total votes | Total votes | 33,874 | 100% |

### Results

Missouri's 29th State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Mike Moon | 75,582 | 100% | |
| Margin of victory | Margin of victory | Margin of victory | 75,582 | 100% | |
| Total votes | Total votes | Total votes | 75,582 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 31
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Raymond Kinney | 7,971 | 100% |
| Total votes | Total votes | Total votes | 7,971 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Rick Brattin | 14,012 | 49.59% |
| | Republican | Jack Bondon | 12,467 | 44.13% |
| | Republican | Bill Yarberry | 1,774 | 6.28% |
| Total votes | Total votes | Total votes | 28,253 | 100% |

### Results

Missouri's 31st State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Rick Brattin | 63,929 | 71.42% | −1.01% |
| | Democratic | Raymond Kinney | 25,584 | 28.58% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 38,345 | 42.84% | |
| Total votes | Total votes | Total votes | 89,513 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

## District 33
### Democratic primary
#### Primary results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tammy Harty | 3,274 | 100% |
| Total votes | Total votes | Total votes | 3,274 | 100% |

### Republican primary
#### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Karla Eslinger | 12,704 | 37.12% |
| | Republican | Robert Ross | 12,562 | 36.71% |
| | Republican | Van Kelly | 8,958 | 26.17% |
| Total votes | Total votes | Total votes | 34,224 | 100% |

### Results

Missouri's 33rd State Senate District, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Karla Eslinger | 64,891 | 83.81% | −16.19% |
| | Democratic | Tammy Harty | 12,533 | 16.19% | N/A |
| Margin of victory | Margin of victory | Margin of victory | 52,358 | 67.62% | |
| Total votes | Total votes | Total votes | 77,424 | 100% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |