2018_United_States_House_of_Representatives_elections_in_Iowa
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. The Democrats had last won the majority of Iowa's seats in the 2010 elections.
Quick Facts All 4 Iowa seats to the United States House of Representatives, Majority party ...
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All 4 Iowa seats to the United States House of Representatives | ||||||||||||||||||||||||||||
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Result by party gains
Election results by district
Election results by county Democratic hold Democratic gain Republican hold
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Statewide
More information Party, Candidates ...
| Party | Candidates | Votes | Seats | ||||
|---|---|---|---|---|---|---|---|
| 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 | 17 | 1,316,643 | 100.00% | 4 | | 100.00% | |
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More information Popular vote ...
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More information House seats ...
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By district
Results of the 2018 United States House of Representatives elections in Iowa by district:[1]
More information District, Democratic ...
| District | Democratic | Republican | Others | Total | Result | ||||
|---|---|---|---|---|---|---|---|---|---|
| Votes | % | Votes | % | Votes | % | Votes | % | ||
| 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% | |
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Quick Facts Nominee, Party ...
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County results Finkenauer: 50–60% Blum: 40-50% 50–60% | |||||||||||||||||
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See also: Iowa's 1st congressional district
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.[2]
Republican primary
Candidates
Nominee
- Rod Blum, incumbent U.S. Representative
Results
Map legend
- Blum—100%
- Blum—≥90%
More information Party, Candidate ...
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Rod Blum (incumbent) | 14,737 | 98.9 | |
| Republican | Write-ins | 167 | 1.1 | |
| Total votes | 14,904 | 100.0 | ||
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Democratic primary
Candidates
Nominee
- Abby Finkenauer, state representative[3]
Eliminated in primary
- Thomas Heckroth, former staffer for United States Senator Tom Harkin[4][5]
- George Ramsey III, former military recruiter[5]
- Courtney Rowe, engineer and Bernie Sanders delegate at the 2016 state convention[6]
Declined
- Jeff Danielson, state senator[7][8]
- Liz Mathis, state senator[9]
- Brent Oleson, Linn County Supervisor[7][10]
- Steve Sodders, former state senator[11]
- Stacey Walker, Linn County Supervisor[4][10]
Endorsements
Abby Finkenauer
- State legislators
- Ako Abdul-Samad, state representative[12]
- Liz Bennett, state representative[12]
- Timi Brown-Powers, state representative[12]
- Pam Jochum, State Senator and former President of the Iowa Senate[12]
- Tyler Olson, former state representative[12]
- Janet Petersen, state senator[12]
- Kirsten Running-Marquardt, state representative[12]
- Ras Smith, state representative[12]
- Todd Taylor, state representative[12]
- Individuals
- Sue Dvorsky, former Iowa Democratic Party chair[12]
Thomas Heckroth
- State legislators
- Ro Foege, former state representative[13]
- Brian Schoenjahn, former state senator[13]
- Steve Sodders, former state senator[13]
- Individuals
- Brent Oleson, Linn County Supervisor[13][10]
- Peggy Sherets, Oelwein Mayor[13]
Courtney Rowe
- Organizations
Results
Map legend
- Finkenauer—80–90%
- Finkenauer—70–80%
- Finkenauer—60–70%
- Finkenauer—50–60%
- Heckroth—50–60%
More information Party, Candidate ...
| 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 | 44,529 | 100 | ||
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Libertarian primary
Candidates
Nominee
- Troy Hageman, activist
Green primary
Candidates
Nominee
- Henry Gaff, co-chair of the Iowa Green Party[15]
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.[15]
General election
Debates
More information No., Date ...
| No. | Date | Host | Moderator | Link | Republican | Democratic |
|---|---|---|---|---|---|---|
| Key: P Participant A Absent N Not invited I Invited W Withdrawn |
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| Rod Blum | Abby Finkenauer | |||||
| 1 | October 5, 2018 | KWWL-TV | Ron Steele Abby Turpin |
C-SPAN | P | P |
| 2 | October 16, 2018 | KGAN KXEL |
Jeff Stein Nick Weig |
C-SPAN | P | P |
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Polling
More information Poll source, Date(s) administered ...
| 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% |
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Predictions
More information Source, Ranking ...
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[16] | Lean D (flip) | November 5, 2018 |
| Inside Elections[17] | Lean D (flip) | November 5, 2018 |
| Sabato's Crystal Ball[18] | Lean D (flip) | November 5, 2018 |
| RCP[19] | Lean D (flip) | November 5, 2018 |
| Daily Kos[20] | Lean D (flip) | November 5, 2018 |
| 538[21] | Safe D (flip) | November 7, 2018 |
| CNN[22] | Lean D (flip) | October 31, 2018 |
| Fox News[23] | Lean D (flip) | September 21, 2018 |
| Politico[24] | Lean D (flip) | November 2, 2018 |
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Results
Finkenauer went on to flip the district, being one of many victories in swing districts for Democrats in a blue wave election.
More information Party, Candidate ...
| 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 | 174 | 0.0 | ||||
| Total votes | 334,243 | 100.0 | ||||
| Democratic gain from Republican | ||||||
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Quick Facts Nominee, Party ...
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County results Loebsack: 50–60% 60–70% 70–80% Peters: 40–50% 50–60% 60–70% | |||||||||||||||||
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See also: Iowa's 2nd congressional district
Democratic representative Dave Loebsack, who has represented the district since 2007, was reelected to a sixth term with 54% of the vote in 2016. Loebsack ran for reelection.[25]
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.[2]
Democratic primary
Candidates
Nominee
- Dave Loebsack, incumbent U.S. Representative
Results
Map legend
- Loebsack—100%
- Loebsack—≥90%
More information Party, Candidate ...
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Dave Loebsack (incumbent) | 42,378 | 99.3 | |
| Democratic | Write-ins | 314 | 0.7 | |
| Total votes | 42,692 | 100.0 | ||
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Republican primary
Candidates
Nominee
Eliminated in primary
Declined
- Bobby Kaufmann, state representative[7]
Results
Map legend
- Peters—≥90%
- Peters—80–90%
- Peters—70–80%
- Peters—50–60%
More information Party, Candidate ...
| 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 | 21,076 | 100.0 | ||
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Independents
- Daniel Clark[29]
General election
Polling
More information Poll source, Dates administered ...
| 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% |
| 43% | 37% | 3%[30] | 17% | ||||
| Emerson College | September 6–8, 2018 | 250 | ± 6.4% | 45% | 21% | – | 28% |
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Predictions
More information Source, Ranking ...
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[16] | Safe D | November 5, 2018 |
| Inside Elections[17] | Safe D | November 5, 2018 |
| Sabato's Crystal Ball[18] | Safe D | November 5, 2018 |
| RCP[19] | Likely D | November 5, 2018 |
| Daily Kos[20] | Safe D | November 5, 2018 |
| 538[21] | Safe D | November 7, 2018 |
| Fox News[23] | Likely D | September 28, 2018 |
| CNN[22] | Safe D | October 31, 2018 |
| Politico[24] | Likely D | November 2, 2018 |
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Results
More information Party, Candidate ...
| 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 | 162 | 0.0 | ||
| Total votes | 312,913 | 100.0 | ||
| Democratic hold | ||||
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Quick Facts Nominee, Party ...
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County results Axne: 50–60% Young: 50–60% 60–70% | |||||||||||||||||
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See also: Iowa's 3rd congressional district
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.[2]
Republican primary
Candidates
Nominee
- David Young, incumbent U.S. Representative
Results
Map legend
- Young—100%
- Young—≥90%
More information Party, Candidate ...
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | David Young (incumbent) | 21,712 | 98.9 | |
| Republican | Write-ins | 234 | 1.1 | |
| Total votes | 21,946 | 100 | ||
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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.[31]
Candidates
Nominee
- Cindy Axne, businesswoman[32][33]
Eliminated in primary
Did not make ballot
- Theresa Greenfield, real estate executive[37]
Withdrew
- Austin Frerick, former Treasury Department economist[38][39]
- Paul Knupp, psychiatric rehabilitation practitioner and minister,[40] withdrew from the Democratic primary to join the Green party[citation needed]
- Heather Ryan, nominee for KY-01 in 2008[41][42]
- Anna Ryon, attorney with the Office of Consumer Advocate[43]
- Mike Sherzan, businessman and candidate in 2016[44][45]
- 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)[45]
Endorsements
Pete D'Alessandro
- U.S. Senators
- Bernie Sanders, U.S. Senator from Vermont[46][47]
- State legislators
- Marti Anderson, state representative[48]
- Brian Meyer, state representative[48]
- Labor unions
- Organizations
- Individuals
Polling
More information Poll source, Dates administered ...
| 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% |
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Results
Map legend
- Axne—70–80%
- Axne—60–70%
- Axne—50–60%
- Mauro—40–50%
More information Party, Candidate ...
| 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 | 56,940 | 100 | ||
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General election
Debate
More information No., Date ...
| No. | Date | Host | Moderator | Link | Republican | Democratic |
|---|---|---|---|---|---|---|
| Key: P Participant A Absent N Not invited I Invited W Withdrawn |
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| David Young | Cindy Axne | |||||
| 1 | October 11, 2018 | Iowa Public Television | David Yepsen | C-SPAN | P | P |
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Polling
More information Poll source, Dates administered ...
| 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% |
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More information Poll source, Dates administered ...
| 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% | — | — |
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Hypothetical polling
Predictions
More information Source, Ranking ...
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[16] | Tossup | November 5, 2018 |
| Inside Elections[17] | Tossup | November 5, 2018 |
| Sabato's Crystal Ball[18] | Lean D (flip) | November 5, 2018 |
| RCP[19] | Tossup | November 5, 2018 |
| Daily Kos[20] | Tossup | November 5, 2018 |
| 538[21] | Lean D (flip) | November 7, 2018 |
| CNN[22] | Tossup | October 31, 2018 |
| Fox News[23] | Tossup | September 21, 2018 |
| Politico[24] | Tossup | November 2, 2018 |
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Results
More information Party, Candidate ...
| 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 | 195 | 0.1 | ||||
| Total votes | 356,241 | 100.0 | ||||
| Democratic gain from Republican | ||||||
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Quick Facts Nominee, Party ...
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County results King: 40–50% 50–60% 60–70% 70–80% Scholten: 40–50% 50–60% 60–70% | |||||||||||||||||
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See also: Iowa's 4th congressional district
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.[2]
Republican primary
Candidates
Nominee
- Steve King, incumbent U.S. Representative[53]
Eliminated in primary
- Cyndi Hanson, educational administrator[54]
Declined
- Rick Bertrand, state senator and candidate for this seat in 2016[55]
Results
Map legend
- King—80–90%
- King—70–80%
- King—60–70%
More information Party, Candidate ...
| 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 | 37,534 | 100 | ||
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Democratic primary
Candidates
Nominee
- J. D. Scholten, paralegal and former professional baseball player[56]
Eliminated in primary
Withdrawn
Declined
- Dirk Deam, Iowa State University political science professor[61]
- Chris Hall, state representative[62]
Results
Map legend
- Scholten—70–80%
- Scholten—60–70%
- Scholten—50–60%
- Scholten—40–50%
- Scholten—30–40%
- Jacobsen—40–50%
- Jacobsen—50–60%
- Jacobsen—60–70%
More information Party, Candidate ...
| 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 | 28,744 | 100.0 | ||
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General election
King declined to debate Scholten during the general election campaign.[63][64]
Endorsements
J. D. Scholten (D)
- U.S. Senators
- Jeff Flake, U.S. Senator from Arizona (Republican)[65]
Polling
More information Poll source, Dates administered ...
| 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% |
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Predictions
More information Source, Ranking ...
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[16] | Lean R | November 5, 2018 |
| Inside Elections[17] | Likely R | November 5, 2018 |
| Sabato's Crystal Ball[18] | Lean R | November 5, 2018 |
| RCP[19] | Lean R | November 5, 2018 |
| Daily Kos[20] | Likely R | November 5, 2018 |
| 538[21] | Likely R | November 7, 2018 |
| Fox News[23] | Lean R | September 21, 2018 |
| CNN[22] | Likely R | October 31, 2018 |
| Politico[24] | Likely R | November 2, 2018 |
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Results
King won by the slimmest margin of victory in his congressional electoral career.[66]
More information Party, Candidate ...
| 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 | 206 | 0.0 | ||
| Total votes | 313,256 | 100.0 | ||
| Republican hold | ||||
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- Johnson, Cheryl L. (February 28, 2019). "Statistics of the Congressional Election of November 6, 2018". Clerk of the U.S. House of Representatives. Retrieved April 27, 2019.
- "Morning Digest: Facing reality, Pat McCrory finally concedes North Carolina governor's race". Daily Kos Elections. December 6, 2016. Retrieved January 18, 2017.
- Pat Rynard (May 3, 2017). "ABBY FINKENAUER LAUNCHES CONGRESSIONAL BID ON WORKING CLASS MESSAGE". Iowa Starting Line. Retrieved May 3, 2017.
- "Stacey Walker may run for Congress in IA-01". Bleeding Heartland. June 13, 2017. Retrieved June 13, 2017.
- James Q. Lynch (July 10, 2017). "Thomas Heckroth joins field of candidates seeking to unseat U.S. Rep. Rod Blum". Mason City Globe Gazette. Retrieved July 10, 2017.
- James Q. Lynch (May 30, 2017). "Cedar Rapids engineer Courtney Rowe joins 1st District Democratic race". The Gazette. Retrieved May 31, 2017.
- "Democrats set to target Blum in IA-01; GOP will go after Loebsack in IA-02". Bleeding Heartland. February 3, 2017. Retrieved February 3, 2017.
- Steele, Ron (September 21, 2017). "Senator Danielson says he will not run for Congress in 2018". KWWL. Archived from the original on September 22, 2017. Retrieved September 21, 2017.
- Lynch, James Q. (January 18, 2017). "Mathis rules out running for Iowa governor in 2018". The Gazette. Retrieved January 18, 2017.
- James Q. Lynch (July 17, 2017). "Linn County Supervisor Stacy Walker won't run for U.S. House". Muscatine Journal. Retrieved July 27, 2017.
- "Steve Sodders rules out running for Congress in IA-01". Bleeding Heartland. April 17, 2017. Retrieved May 3, 2017.
- "Team Abby is Growing!". Abby Finkenauer for Congress. May 12, 2017. Retrieved May 12, 2017.
- "Join Team Heckroth". Thomas Heckroth for Congress. Archived from the original on July 24, 2017. Retrieved July 27, 2017.
- "Primary election 2018 canvass summary" (PDF). sos.iowa.gov. Retrieved March 6, 2023.
- Crippes, Christinia. "Green Party candidate announces 1st District bid". Waterloo Cedar Falls Courier. Retrieved September 14, 2017.
- "2018 House Race Ratings". Cook Political Report. Retrieved October 30, 2018.
- "2018 House Ratings". The Rothenberg Political Report. Retrieved November 5, 2018.
- "2018 House". Sabato's Crystal Ball. Retrieved November 5, 2018.
- "Battle for the House 2018". RCP. Retrieved November 5, 2018.
- "Daily Kos Elections 2018 race ratings". Daily Kos. Retrieved November 5, 2018.[permanent dead link]
- Silver, Nate (August 16, 2018). "2018 House Forecast". FiveThirtyEight. Retrieved November 6, 2018.
- "CNN's 2018 Race Ratings". cnn.com. Turner Broadcasting System. Archived from the original on October 31, 2018. Retrieved July 30, 2023.
- "Fox News Midterms 2018 America's Election HQ". Fox News. Retrieved August 18, 2018.
- "Who wins 2018? Predictions for Every House & Senate Election". POLITICO. Retrieved September 7, 2018.
- Dolmage, David (August 3, 2017). "Loebsack lays out plan for 2018". Newton Daily News. Retrieved August 3, 2017.
- Christopher Peters announces run for U.S. Congress, daily-iowan.Com, 2017/07/19.
- "Ginny Caligiuri announces bid for Congress in Iowa's 2nd District". Des Moines Register.
- "Iowa Starting Line on Twitter". Retrieved August 29, 2018.
- "danielclarkforcongress.com". danielclarkforcongress.
- Daniel Clark (I) with 2%, Mark Strauss (L) with 1%
- "Democratic Candidate Theresa Greenfield Fails to Make it on Primary Ballot". whotv.com. March 19, 2018. Retrieved March 19, 2018.
- Pfannenstiel, Brianne (June 2, 2017). "Cynthia Axne announces candidacy challenging David Young". The Des Moines Register. Retrieved June 2, 2017.
- "Candidate List" (PDF). sos.iowa.gov. Retrieved March 6, 2023.
- "Democrat Pete D'Alessando exploring congressional run in Iowa's 3rd District". The Des Moines Register. April 25, 2017. Retrieved August 26, 2017.
- Pfannenstiel, Brianne; Ufheil, Angela (August 26, 2017). "Democrat Pete D'Alessandro will challenge David Young for Congress". The Des Moines Register. Retrieved August 27, 2017.
- Noble, Jason (July 27, 2017). "Eddie Mauro exploring run for Congress in Iowa's 3rd District". The Des Moines Register. Retrieved July 28, 2017.
- Noble, Jason (July 5, 2017). "Real estate executive Theresa Greenfield joins 3rd District race for Congress". The Des Moines Register. Retrieved July 5, 2017.
- Noble, Jason (August 4, 2017). "Democrat Austin Frerick is running for Congress in Iowa's 3rd". The Des Moines Register. Retrieved August 8, 2017.
- "Iowa Congressional Candidate Drops Out of Race". whotv.com. March 17, 2018.
- "Background on Paul Knupp, another Democratic candidate in IA-03". Bleeding Heartland. June 12, 2017. Retrieved June 13, 2017.
- "Heather Ryan launches untraditional Democratic campaign in IA-03". Bleeding Heartland. June 7, 2017. Retrieved June 7, 2017.
- Rynard, Pat (July 5, 2017). "3rd District Candidate Heather Ryan's Disturbing Past Comments, Videos". Iowa Starting Line. Retrieved June 7, 2017.
- "IA-03: Democrat Anna Ryon is thinking about it". Bleeding Heartland. February 1, 2017. Retrieved February 2, 2017.
- Obradovich, Katie (March 1, 2017). "Democrat Mike Sherzan to run for Congress in Iowa's 3rd District". The Des Moines Register. Retrieved March 1, 2017.
- "IA-03: Mike Sherzan is out, Pete D'Alessandro to decide soon". Bleeding Heartland. April 13, 2017. Retrieved June 16, 2017.
- "Bernie Sanders endorses Pete D'Alessandro in Iowa's 3rd District race". The Des Moines Register. Retrieved August 29, 2018.
- "Bernie's with Pete: Add your name". Retrieved August 29, 2018.
- "Who's endorsed the seven Democrats running for Congress in IA-03 - Bleeding Heartland". January 11, 2018. Retrieved August 29, 2018.
- "National Nurses United Endorses Cathy Glasson for Governor and Pete D'Alessandro for Congress". National Nurses United. December 8, 2017. Retrieved August 29, 2018.
- "Pete D'Alessandro". Our Revolution. Retrieved August 29, 2018.
- "The People For Bernie Sanders". www.facebook.com. Retrieved August 29, 2018.
- "Ben Jacobs on Twitter". Retrieved August 29, 2018.
- Koss, Emily (June 2, 2017). "Steve King Running for Another Term in Congress". WHO-DT. Retrieved June 2, 2017.
- Katie Copple (December 6, 2017). "Longtime Sioux Citian Dr. Cyndi Hanson announces House run against incumbent Steve King". siouxlandnews.com. Siouxland News. Retrieved August 10, 2023.
- Hayworth, Bret (June 18, 2016). "Content with primary outcome, Bertrand could challenge King again". Sioux City Journal. Retrieved January 18, 2017.
- Noble, Jason (July 25, 2017). "Former Sioux City baseball player J.D. Scholten to run for Congress in Iowa's 4th". The Des Moines Register. Retrieved July 25, 2017.
- Cauthron, Randy M. (August 10, 2017). "'Anybody with a strong vision can win here'". Spencer Daily Reporter. Retrieved August 10, 2017.
- Cannon, Austin (September 18, 2017). "Ames physician to run for Congress". Ames Tribune. Retrieved September 21, 2017.
- Petroski, William (August 21, 2017). "Dahl to seek Democratic nomination for Iowa's 4th District Congress seat". The Des Moines Register. Retrieved August 21, 2017.
- "Kim Weaver withdraws her candidacy in Iowa's 4th District race for Congress". Des Moines Register. Retrieved August 17, 2017.
- Rynard, Pat (April 26, 2017). "Dirk Deam Passes On 4th District, Fred Hubbell Rumors Heat Up". Iowa Starting Line. Retrieved August 17, 2017.
- Hayworth, Bret (May 1, 2017). "Sioux City's Hall mulls run for governor". Sioux City Journal. Retrieved May 12, 2017.
- "Is Steve King in trouble? Democrat J.D. Scholten bets hustle and grit are keys to upset". Des Moines Register. Retrieved October 28, 2018.
- "No King versus Scholten debate in Iowa's fourth district - Radio Iowa". Radio Iowa. October 17, 2018. Retrieved October 28, 2018.
- "Steve King, scourge of immigrants, squeaks out a win". www.yahoo.com. November 7, 2018.
- Candidates at Vote Smart
- Candidates at Ballotpedia
- Campaign finance at FEC
- Campaign finance at OpenSecrets
- Official campaign websites for first district candidates
- Official campaign websites for second district candidates
- Daniel Clark (G) for Congress
- Dave Loebsack (D) for Congress
- Dr. Christopher Peters (R) for Congress
- Official campaign websites for third district candidates
- Official campaign websites for fourth district candidates