# 2018 United States House of Representatives elections in Iowa

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The 2018 United States House of Representatives elections in Iowa were held on November 6, 2018, to elect the four U.S. representatives from the State of Iowa, one from each of the state's four congressional districts. The elections coincided with the gubernatorial election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections. The state congressional delegation flipped from a 3–1 Republican majority to a 3–1 Democratic majority.
This was the first time the Democrats won the majority of Iowa's seats since 2010, and the first time they won the popular vote in the state since 2012. As of 2025, these results were also the last time the Democrats would achieve either due to Iowa's transition into a safe red state.

## Overview
### Statewide

| Party | Party | Candidates | Votes | Votes | Seats | Seats | Seats |
| Party | Party | Candidates | No. | % | No. | +/– | % |
| | Democratic | 4 | 664,676 | 50.48% | 3 | 2 | 75.00% |
| | Republican | 4 | 612,338 | 46.51% | 1 | 2 | 25.00% |
| | Libertarian | 4 | 29,894 | 2.27% | 0 | | 0.00% |
| | Independent | 3 | 5,100 | 0.39% | 0 | | 0.00% |
| | Legal Marijuana Now | 1 | 2,015 | 0.15% | 0 | | 0.00% |
| | Green | 1 | 1,888 | 0.14% | 0 | | 0.00% |
| | Write-in | | 732 | 0.06% | 0 | | 0.00% |
| Total | Total | 17 | 1,316,643 | 100.00% | 4 | | 100.00% |
Popular vote
Democratic
50.48%
Republican
46.51%
Libertarian
2.27%
Other
0.74% :
House seats
Democratic
75.00%
Republican
25.00% :

### By district

Results of the 2018 United States House of Representatives elections in Iowa by district:
| District | Democratic | Democratic | Republican | Republican | Others | Others | Total | Total | Result |
| District | Votes | % | Votes | % | Votes | % | Votes | % | Result |
| District 1 | 170,342 | 50.96% | 153,442 | 45.91% | 10,459 | 3.13% | 334,243 | 100.0% | Democratic gain |
| District 2 | 171,446 | 54.79% | 133,287 | 42.60% | 8,180 | 2.61% | 312,913 | 100% | Democratic hold |
| District 3 | 175,642 | 49.30% | 167,933 | 47.14% | 12,666 | 3.56% | 356,241 | 100.0% | Democratic gain |
| District 4 | 147,246 | 47.04% | 157,676 | 50.37% | 8,123 | 2.59% | 313,045 | 100.0% | Republican hold |
| Total | 664,676 | 50.49% | 612,338 | 46.51% | 39,428 | 3.00% | 1,316,442 | 100.0% | |

## District 1

Incumbent Republican Rod Blum, who had represented the district since 2015, ran for re-election. He was re-elected with 54% of the vote in 2016. The district had a PVI of D+1.
The 1st district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 56% to 43% margin in 2012.

### Republican primary
#### Candidates
##### Nominee

* Rod Blum, incumbent U.S. Representative

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Rod Blum (incumbent) | 14,737 | 98.9 |
| | Republican | Write-ins | 167 | 1.1 |
| Total votes | Total votes | Total votes | 14,904 | 100.0 |

### Democratic primary
#### Candidates
##### Nominee

* Abby Finkenauer, state representative

##### Eliminated in primary

* Thomas Heckroth, former staffer for United States Senator Tom Harkin
* George Ramsey III, former military recruiter
* Courtney Rowe, engineer and Bernie Sanders delegate at the 2016 state convention

##### Declined

* Jeff Danielson, state senator
* Liz Mathis, state senator
* Brent Oleson, Linn County Supervisor
* Steve Sodders, former state senator
* Stacey Walker, Linn County Supervisor

#### Endorsements
##### State legislators

* Ako Abdul-Samad, state representative
* Liz Bennett, state representative
* Timi Brown-Powers, state representative
* Pam Jochum, State Senator and former President of the Iowa Senate
* Tyler Olson, former state representative
* Janet Petersen, state senator
* Kirsten Running-Marquardt, state representative
* Ras Smith, state representative
* Todd Taylor, state representative

##### Individuals

* Sue Dvorsky, former Iowa Democratic Party chair

##### State legislators

* Ro Foege, former state representative
* Brian Schoenjahn, former state senator
* Steve Sodders, former state senator

##### Individuals

* Brent Oleson, Linn County Supervisor
* Peggy Sherets, Oelwein mayor

##### Organizations

* Justice Democrats

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Abby Finkenauer | 29,745 | 66.8 |
| | Democratic | Thomas Heckroth | 8,516 | 19.1 |
| | Democratic | Courtney Rowe | 3,381 | 7.6 |
| | Democratic | George Ramsey | 2,837 | 6.4 |
| | Democratic | Write-ins | 50 | 0.1 |
| Total votes | Total votes | Total votes | 44,529 | 100 |

### Libertarian primary
#### Candidates
##### Nominee

* Troy Hageman, activist

### Green primary
#### Candidates
##### Nominee

* Henry Gaff, co-chair of the Iowa Green Party
Gaff was only 18, meaning he would not have met the U.S. Constitution's required minimum age of 25 to be elected to the House of Representatives.

### General election
#### Debates

2018 Iowa's 1st congressional district debates :
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Rod Blum | Abby Finkenauer |
| 1 | October 5, 2018 | KWWL-TV | Ron Steele Abby Turpin | | P | P |
| 2 | October 16, 2018 | KGAN KXEL | Jeff Stein Nick Weig | | P | P |

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Rod Blum (R) | Abby Finkenauer (D) | Troy Hageman (L) | Undecided |
| Emerson College | October 29 – November 1, 2018 | 353 | ± 5.5% | 41% | 53% | 4% | 2% |
| NYT Upshot/Siena College | October 28–31, 2018 | 452 | ± 4.9% | 39% | 46% | 4% | 11% |
| The Polling Company (R-Blum) | October 12–13, 2018 | 400 | ± 4.9% | 43% | 45% | 4% | 6% |
| The Polling Company (R-Blum) | October 3–4, 2018 | 400 | ± 4.9% | 43% | 44% | 3% | 8% |
| NYT Upshot/Siena College | September 18–20, 2018 | 502 | ± 4.6% | 37% | 52% | – | 11% |
| Emerson College | September 6–8, 2018 | 250 | ± 6.4% | 38% | 43% | – | 12% |
| DCCC (D) | February 13–14, 2018 | — | — | 41% | 47% | – | — |
| Public Policy Polling (D) | February 12–13, 2018 | 742 | ± 3.6% | 42% | 43% | – | 15% |
| Public Policy Polling (D-Heckroth) | November 2–3, 2017 | 737 | – | 42% | 43% | – | 16% |
| Public Policy Polling (D) | October 6–8, 2017 | 1,093 | ± 3.0% | 40% | 42% | – | 18% |

#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Lean D (flip) | November 5, 2018 |
| Inside Elections | Lean D (flip) | November 5, 2018 |
| Sabato's Crystal Ball | Lean D (flip) | November 5, 2018 |
| RCP | Lean D (flip) | November 5, 2018 |
| Daily Kos | Lean D (flip) | November 5, 2018 |
| 538 | Safe D (flip) | November 7, 2018 |
| CNN | Lean D (flip) | October 31, 2018 |
| Fox News | Lean D (flip) | September 21, 2018 |
| Politico | Lean D (flip) | November 2, 2018 |

#### Results

Finkenauer went on to flip the district; this was one of many victories in swing districts for Democrats in a blue wave election.
Iowa's 1st congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Abby Finkenauer | 170,342 | 51.0 |
| | Republican | Rod Blum (incumbent) | 153,442 | 45.9 |
| | Libertarian | Troy Hageman | 10,285 | 3.1 |
| | Write-in | Write-in | 174 | 0.0 |
| Total votes | Total votes | Total votes | 334,243 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 2

Democratic representative Dave Loebsack, who had represented the district since 2007, was reelected to a sixth term with 54% of the vote in 2016. Loebsack ran for reelection.
The 2nd district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 56% to 43% margin in 2012.

### Democratic primary
#### Candidates
##### Nominee

* Dave Loebsack, incumbent U.S. Representative

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dave Loebsack (incumbent) | 42,378 | 99.3 |
| | Democratic | Write-ins | 314 | 0.7 |
| Total votes | Total votes | Total votes | 42,692 | 100.0 |

### Republican primary
#### Candidates
##### Nominee

* Christopher Peters, thoracic surgeon and nominee for this seat in 2016

##### Eliminated in primary

* Ginny Caligiuri, businesswoman (write-in)

##### Declined

* Bobby Kaufmann, state representative

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Christopher Peters | 18,056 | 85.7 |
| | Republican | Ginny Caligiuri (write-in) | 2,839 | 13.5 |
| | Republican | Other write-ins | 181 | 0.9 |
| Total votes | Total votes | Total votes | 21,076 | 100.0 |

### Independents

* Daniel Clark

### General election
#### Polling

| Poll source | Dates administered | Sample size | Margin of error | Dave Loebsack (D) | Christopher Peters (R) | Other | Undecided |
| Emerson College | October 29 – November 1, 2018 | 373 | ± 5.3% | 53% | 40% | 2% | 5% |
| Gravis Marketing (R-Peters) | September 8–11, 2018 | 425 | ± 4.8% | 46% | 38% | – | 16% |
| Gravis Marketing (R-Peters) | September 8–11, 2018 | 425 | ± 4.8% | 43% | 37% | 3% | 17% |
| Emerson College | September 6–8, 2018 | 250 | ± 6.4% | 45% | 21% | – | 28% |

#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Safe D | November 5, 2018 |
| Inside Elections | Safe D | November 5, 2018 |
| Sabato's Crystal Ball | Safe D | November 5, 2018 |
| RCP | Likely D | November 5, 2018 |
| Daily Kos | Safe D | November 5, 2018 |
| 538 | Safe D | November 7, 2018 |
| Fox News | Likely D | September 28, 2018 |
| CNN | Safe D | October 31, 2018 |
| Politico | Likely D | November 2, 2018 |

#### Results

Iowa's 2nd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dave Loebsack (incumbent) | 171,446 | 54.8 |
| | Republican | Christopher Peters | 133,287 | 42.6 |
| | Libertarian | Mark Strauss | 6,181 | 2.0 |
| | Independent | Daniel Clark | 1,837 | 0.6 |
| | Write-in | Write-in | 162 | 0.0 |
| Total votes | Total votes | Total votes | 312,913 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 3

Incumbent Republican David Young, who had represented the district since 2015, ran for re-election. He was re-elected with 53% of the vote in 2016. The district had a PVI of D+1.
The 3rd district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 51% to 47% margin in 2012.

### Republican primary
#### Candidates
##### Nominee

* David Young, incumbent U.S. Representative

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | David Young (incumbent) | 21,712 | 98.9 |
| | Republican | Write-ins | 234 | 1.1 |
| Total votes | Total votes | Total votes | 21,946 | 100 |

### Democratic primary

After Greenfield's campaign manager was fired for forging signatures on nominating papers, she attempted to re-collect the 1,790 signatures necessary to make the ballot, but did not get enough signatures.

#### Candidates
##### Nominee

* Cindy Axne, businesswoman

##### Eliminated in primary

* Pete D'Alessandro, political consultant
* Eddie Mauro, activist

##### Did not make ballot

* Theresa Greenfield, real estate executive

##### Withdrew

* Austin Frerick, former Treasury Department economist
* Paul Knupp, psychiatric rehabilitation practitioner and minister, withdrew from the Democratic primary to join the Green party
* Heather Ryan, nominee for KY-01 in 2008
* Anna Ryon, attorney with the Office of Consumer Advocate
* Mike Sherzan, businessman and candidate in 2016
Declined
* John Norris, former chief of staff to Governor Tom Vilsack, former Federal Energy Regulatory Commission member and nominee for IA-04 in 2002 (running for governor)

#### Endorsements
##### U.S. Representatives

* Ro Khanna, U.S. Representative (CA-17)

##### U.S. Senators

* Bernie Sanders, U.S. Senator from Vermont

##### State legislators

* Marti Anderson, state representative
* Brian Meyer, state representative

##### Labor unions

* National Nurses United

##### Organizations

* Justice Democrats
* Our Revolution
* The People for Bernie Sanders

##### Individuals

* Sue Dvorsky, former Iowa Democratic Committee Chair
* Derek Eadon, former Iowa Democratic Committee Chair
* Ben Jacobs, Bernie Sanders’s 2016 campaign manager

#### Polling

| Poll source | Dates administered | Sample size | Margin of error | Cindy Axne | Pete D'Alessandro | Eddie Mauro | Undecided |
| Selzer & Co. | May 13–16, 2018 | 400 | ± 4.9% | 26% | 11% | 27% | 36% |

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cindy Axne | 32,910 | 57.8 |
| | Democratic | Eddie J. Mauro | 15,006 | 26.4 |
| | Democratic | Pete D'Alessandro | 8,874 | 15.6 |
| | Democratic | Write-ins | 150 | 0.3 |
| Total votes | Total votes | Total votes | 56,940 | 100 |

### General election
#### Debate

2018 Iowa's 3rd congressional district debates :
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | David Young | Cindy Axne |
| 1 | October 11, 2018 | Iowa Public Television | David Yepsen | | P | P |

#### Polling

| Poll source | Dates administered | Sample size | Margin of error | David Young (R) | Cindy Axne (D) | Undecided |
| Emerson College | October 29 – November 1, 2018 | 380 | ± 5.3% | 45% | 46% | 3% |
| NYT Upshot/Siena College | October 25–27, 2018 | 504 | ± 4.6% | 41% | 43% | 11% |
| NYT Upshot/Siena College | September 27–30, 2018 | 502 | ± 4.6% | 43% | 44% | 13% |
| Emerson College | September 6–8, 2018 | 260 | ± 6.4% | 47% | 31% | 15% |
| DCCC (D) | September 4–5, 2018 | 575 | ± 4.1% | 43% | 46% | 11% |
| ALG Research (D-Axne) | July 8–12, 2018 | 500 | ± 4.4% | 41% | 45% | 14% |
| Poll source | Dates administered | Sample size | Margin of error | David Young (R) | Democratic candidate | Other | Undecided |
| PPP/Patriot Majority USA | October 6–8, 2017 | 693 | ± 3.7% | 44% | 43% | — | — |

#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | November 5, 2018 |
| Inside Elections | Tossup | November 5, 2018 |
| Sabato's Crystal Ball | Lean D (flip) | November 5, 2018 |
| RCP | Tossup | November 5, 2018 |
| Daily Kos | Tossup | November 5, 2018 |
| 538 | Lean D (flip) | November 7, 2018 |
| CNN | Tossup | October 31, 2018 |
| Fox News | Tossup | September 21, 2018 |
| Politico | Tossup | November 2, 2018 |

#### Results

Iowa's 3rd congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cindy Axne | 175,642 | 49.3 |
| | Republican | David Young (incumbent) | 167,933 | 47.1 |
| | Libertarian | Bryan Holder | 7,267 | 2.0 |
| | Legal Marijuana Now | Mark Elworth Jr. | 2,015 | 0.6 |
| | Green | Paul Knupp | 1,888 | 0.5 |
| | Independent | Joe Grandanette | 1,301 | 0.4 |
| | Write-in | Write-in | 195 | 0.1 |
| Total votes | Total votes | Total votes | 356,241 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 4

Incumbent Republican Steve King, who had represented the district since 2013, and previously represented the 5th district from 2003 to 2013, ran for re-election. He was re-elected with 61% of the vote in 2016. The district had a PVI of R+11.
The 4th district went for Donald Trump in the 2016 presidential election with a 61% to 34% margin, after voting for Mitt Romney with a 53% to 45% margin in 2012.

### Republican primary
#### Candidates
##### Nominee

* Steve King, incumbent U.S. Representative

##### Eliminated in primary

* Cyndi Hanson, educational administrator

##### Declined

* Rick Bertrand, state senator and candidate for this seat in 2016

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Steve King (incumbent) | 28,053 | 74.7 |
| | Republican | Cyndi Hanson | 9,437 | 25.1 |
| | Republican | Write-ins | 44 | 0.1 |
| Total votes | Total votes | Total votes | 37,534 | 100 |

### Democratic primary
#### Candidates
##### Nominee

* J. D. Scholten, paralegal and former professional baseball player

##### Eliminated in primary

* Leann Jacobsen, Spencer City Councilwoman
* John Paschen, physician

##### Withdrawn

* Paul Dahl, candidate for Governor in 2014
* Kim Weaver, nominee in 2016

##### Declined

* Dirk Deam, Iowa State University political science professor
* Chris Hall, state representative

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | J. D. Scholten | 14,733 | 51.3 |
| | Democratic | Leann Jacobsen | 9,176 | 31.9 |
| | Democratic | John Paschen | 4,806 | 16.7 |
| | Democratic | Write-ins | 29 | 0.1 |
| Total votes | Total votes | Total votes | 28,744 | 100.0 |

### General election

King declined to debate Scholten during the general election campaign.

#### Endorsements
##### U.S. Senators

* Jeff Flake, U.S. Senator from Arizona (Republican)

#### Polling

| Poll source | Dates administered | Sample size | Margin of error | Steve King (R) | J.D. Scholten (D) | Other | Undecided |
| NYT Upshot/Siena College | October 31 – November 4, 2018 | 423 | ± 5.0% | 47% | 42% | 1% | 9% |
| Emerson College | October 29 – November 1, 2018 | 356 | ± 5.5% | 51% | 42% | – | 4% |
| Change Research (D) | October 27–29, 2018 | 631 | – | 45% | 44% | – | – |
| WPA Intelligence (R-King) | October 22–24, 2018 | 401 | ± 4.9% | 52% | 34% | 3% | 11% |
| Expedition Strategies (D-Scholten) | September 5–9, 2018 | 380 | ± 5.0% | 43% | 37% | – | – |
| Emerson College | September 6–8, 2018 | 240 | ± 6.5% | 41% | 31% | – | 16% |

#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Lean R | November 5, 2018 |
| Inside Elections | Likely R | November 5, 2018 |
| Sabato's Crystal Ball | Lean R | November 5, 2018 |
| RCP | Lean R | November 5, 2018 |
| Daily Kos | Likely R | November 5, 2018 |
| 538 | Likely R | November 7, 2018 |
| Fox News | Lean R | September 21, 2018 |
| CNN | Likely R | October 31, 2018 |
| Politico | Likely R | November 2, 2018 |

#### Results

King won by the slimmest margin of victory in his congressional electoral career.
Iowa's 4th congressional district, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Steve King (incumbent) | 157,676 | 50.3 |
| | Democratic | J. D. Scholten | 147,246 | 47.0 |
| | Libertarian | Charles Aldrich | 6,161 | 2.0 |
| | Independent | Edward Peterson | 1,962 | 0.6 |
| | Write-in | Write-in | 206 | 0.0 |
| Total votes | Total votes | Total votes | 313,256 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |