# 2018 Iowa elections

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The 2018 Iowa elections were held in the U.S. state of Iowa on November 6, 2018. A closed primary election was held on June 5, 2018. All of Iowa's executive officers were up for election, as well as all four of Iowa's seats in the United States House of Representatives, 25 (half) of the seats in the Iowa Senate, and all 100 seats in the Iowa House of Representatives.

## Governorship

Incumbent Republican governor Terry Branstad, who had served for two consecutive and six total terms as Iowa governor, resigned to be the United States Ambassador to China in 2017. Lieutenant Governor Kim Reynolds assumed the governorship and was seeking a full term.

### Results

Iowa gubernatorial election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Kim Reynolds (incumbent) | 667,275 | 50.3 |
| | Democratic | Fred Hubbell | 630,986 | 47.5 |
| | Libertarian | Jake Porter | 21,427 | 1.6 |
| | Independent | Gary Siegwarth | 7,463 | 0.6 |
| | Write-in | Write-in | 488 | 0.0 |
| Total votes | Total votes | Total votes | 1,327,638 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## Attorney general

Incumbent Democratic attorney general Tom Miller had served in the position since 1995, and previously from 1979 to 1991. The Republican Party did not nominate anyone, but the Libertarian Party nominated Marco Battaglia.

### Democratic primary
#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Miller (incumbent) | 157,483 | 99.7 |
| | Democratic | Write-ins | 546 | 0.3 |
| Total votes | Total votes | Total votes | 158,029 | 100.0 |

### General election
#### Results

Iowa Attorney General election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Miller (incumbent) | 880,531 | 76.5 |
| | Libertarian | Marco Battaglia | 262,131 | 22.8 |
| | Write-in | Write-in | 8,237 | 0.7 |
| Total votes | Total votes | Total votes | 1,150,899 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Secretary of state
### Democratic primary

* Deidre DeJear
* Jim Mowrer

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Deidre DeJear | 82,221 | 51.1 |
| | Democratic | Jim Mowrer | 78,409 | 48.7 |
| | Democratic | Write-ins | 312 | 0.2 |
| Total votes | Total votes | Total votes | 160,942 | 100.0 |

### Republican primary

* Paul Pate, incumbent

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Paul D. Pate (incumbent) | 88,303 | 99.6 |
| | Republican | Write-ins | 327 | 0.4 |
| Total votes | Total votes | Total votes | 88,630 | 100.0 |

### General election
#### Predictions

| Source | Ranking | As of |
| Governing magazine | Lean R | June 4, 2018 |

#### Endorsements
##### U.S. executive branch officials

* Barack Obama, 44th president of the United States

#### Results

Iowa Secretary of State election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Paul Pate (incumbent) | 685,780 | 52.7 |
| | Democratic | Deidre DeJear | 583,774 | 44.9 |
| | Libertarian | Jules Ofenbakh | 30,881 | 2.4 |
| | Write-in | Write-in | 482 | 0.0 |
| Total votes | Total votes | Total votes | 1,300,917 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## Treasurer

Incumbent Democratic state treasurer Michael L. Fitzgerald, who had served in the position since 1983, ran for reelection to a tenth term in office. Fitzgerald was unopposed in the primary and did not have a Republican challenger, but did have a challenger from the Libertarian party.

### Democratic primary
#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Michael L. Fitzgerald (incumbent) | 156,225 | 51.1 |
| | Democratic | Write-ins | 444 | 0.2 |
| Total votes | Total votes | Total votes | 156,669 | 100.0 |

### General election
#### Results

Iowa State Treasurer election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Michael L. Fitzgerald (incumbent) | 710,426 | 54.8 |
| | Republican | Jeremy Davis | 553,691 | 42.7 |
| | Libertarian | Tim Hird | 31,268 | 2.4 |
| | Write-in | Write-in | 465 | 0.1 |
| Total votes | Total votes | Total votes | 1,295,850 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Auditor

Incumbent Auditor Mary Mosiman, who had served since 2013, was eligible for re-election and was unopposed in the Republican primary. Attorney Rob Sand won the Democratic primary.

### Democratic primary
#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Rob Sand | 147,840 | 99.6 |
| | Democratic | Write-ins | 550 | 0.4 |
| Total votes | Total votes | Total votes | 148,390 | 100.0 |

### Republican primary
#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Mary Mosiman (incumbent) | 85,207 | 99.7 |
| | Republican | Write-ins | 278 | 0.3 |
| Total votes | Total votes | Total votes | 88,630 | 100.0 |

### General election
#### Results

Iowa State Auditor election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Rob Sand | 660,169 | 51.0 |
| | Republican | Mary Mosiman (incumbent) | 601,320 | 46.4 |
| | Libertarian | Fred Perryman | 33,421 | 2.6 |
| | Write-in | Write-in | 458 | 0.0 |
| Total votes | Total votes | Total votes | 1,295,368 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## Secretary of Agriculture

Republican Secretary of Agriculture Bill Northey had served in the position since 2007. Northey was considering running for Iowa governor, but after Governor Terry Branstad was nominated to be Ambassador to China, he announced he would not run. Northey had not ruled out running for reelection in 2018, but said he would be willing to serve as lieutenant governor instead if asked. In 2018, he was nominated by President Donald Trump to be Under Secretary of Agriculture for Farm and Foreign Agricultural Services, and subsequently ruled out reelection. The office was then held by Mike Naig, serving in an acting capacity.

### Democratic primary
#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tim Gannon | 148,258 | 99.5 |
| | Democratic | Write-ins | 710 | 0.5 |
| Total votes | Total votes | Total votes | 148,968 | 100.0 |

### Republican primary

* Ray Gaesser, farmer and soybean producer
* Chad Ingels
* Craig Lang, former president of the Farm Bureau
* Mike Naig, incumbent
* Dan Zumbach, state senator

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Naig (incumbent) | 30,870 | 34.7 |
| | Republican | Dan Zumbach | 18,938 | 21.3 |
| | Republican | Craig Lang | 16,514 | 18.6 |
| | Republican | Ray Gaesser | 14,437 | 16.2 |
| | Republican | Chad Ingels | 7,915 | 8.9 |
| | Republican | Write-ins | 210 | 0.3 |
| Total votes | Total votes | Total votes | 88,884 | 100.0 |

### General election
#### Endorsements
##### U.S. executive branch officials

* Barack Obama, 44th president of the United States

#### Results

Iowa Secretary of Agriculture election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Naig (incumbent) | 651,552 | 50.3 |
| | Democratic | Tim Gannon | 602,916 | 46.6 |
| | Libertarian | Rick Stewart | 38,965 | 3.0 |
| | Write-in | Write-in | 597 | 0.1 |
| Total votes | Total votes | Total votes | 1,294,030 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## United States House of Representatives

All of Iowa's four seats in the United States House of Representatives were up for election in 2018.

## Iowa General Assembly

The 25 odd-numbered Iowa Senate seats were up for election in 2018, as were all 100 Iowa House seats.