# 2020 United States House of Representatives election in South Dakota

"none" is preferred when the title is already sufficiently detailed; see [[WP:SDNONE]]
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The 2020 United States House of Representatives election in South Dakota was held on November 3, 2020, to elect the U.S. representative from South Dakota's at-large congressional district. The election coincided with the 2020 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate and various state and local elections.
Incumbent Republican Dusty Johnson was elected with 60.3% of the vote in 2018.

## Republican primary
### Candidates
#### Declared

* Dusty Johnson, incumbent U.S. Representative
* Liz Marty May, state representative

### Primary results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Dusty Johnson (incumbent) | 71,496 | 76.65% |
| | Republican | Liz Marty May | 21,779 | 23.35% |
| Total votes | Total votes | Total votes | 93,275 | 100.0% |

## Democratic primary

No candidate was able to gather enough signatures to qualify for the Democratic primary. According to state party chairman Randy Seiler, Democratic canvassing efforts were hampered by the coronavirus outbreak.

### Candidates
#### Failed to qualify

* Whitney Raver, small business owner
* Brian Worth, financial crime specialist

#### Withdrawn

* Ellee Spawn, resource coordinator

### Endorsements

Organizations
* National Women's Political Caucus

## Libertarian convention
### Candidates
#### Declared

* Randy Luallin, nominee for Colorado's 2nd congressional district in 2012

## General election
### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Safe R | November 2, 2020 |
| Inside Elections | Safe R | October 28, 2020 |
| Sabato's Crystal Ball | Safe R | November 2, 2020 |
| Politico | Safe R | November 2, 2020 |
| Daily Kos | Safe R | November 2, 2020 |
| RCP | Safe R | November 2, 2020 |

### Results

South Dakota's at-large congressional district, 2020 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Dusty Johnson (incumbent) | 321,984 | 80.96% | +20.61% |
| | Libertarian | Randy Luallin | 75,748 | 19.04% | +17.58% |
| Total votes | Total votes | Total votes | 397,732 | 100.00% | |
| | Republican hold | Republican hold | Republican hold | Republican hold | Republican hold |

#### Counties that flipped from Democratic to Libertarian

* Oglala Lakota (largest city: Pine Ridge)
* Todd (largest city: Mission)

#### Counties that flipped from Democratic to Republican

* Ziebach (largest city: Dupree)
* Corson (largest city: McLaughlin)
* Clay (largest city: Vermillion)
* Dewey (largest city: North Eagle Butte)
* Buffalo (largest city: Fort Thompson)