2018 Iowa elections
The2018 Iowa elections were held in theU.S. state ofIowa on November 6, 2018. A closed primary election was held on June 5, 2018.[ 1] All of Iowa's executive officers were up for election, as well as all four of Iowa's seats in theUnited States House of Representatives , 25 (half) of the seats in theIowa Senate , and all 100 seats in theIowa House of Representatives .
IncumbentRepublican governor Terry Branstad , who had served for two consecutive and six total terms as Iowa governor, resigned to be theUnited States Ambassador to China in 2017.[ 2] Lieutenant GovernorKim Reynolds assumed the governorship and was seeking a full term.
Incumbent Democraticattorney 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.
Deidre DeJear (D)
U.S. executive branch officials Incumbent Democraticstate treasurer Michael L. Fitzgerald , who had served in the position since 1983, ran for reelection to a tenth term in office.[ 10] Fitzgerald faced Republican Jeremy Davis.
Incumbent AuditorMary Mosiman , who had served since 2013, ran for re-election but was defeated by attorneyRob Sand .[ 11]
Secretary of Agriculture [ edit ] RepublicanSecretary 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.[ 12] [ 13] Northey had not ruled out running for reelection in 2018, but said he would be willing to serve as lieutenant governor instead if asked.[ 14] In 2018, he was nominated by PresidentDonald Trump to beUnder Secretary of Agriculture for Farm and Foreign Agricultural Services , and subsequently ruled out reelection. The office was then held byMike Naig , serving in an acting capacity.
Democratic primary results Party Candidate Votes % Democratic Tim Gannon 148,258 99.5 Democratic Write-ins 710 0.5 Total votes 148,968 100.0
Ray Gaesser, farmer and soybean producer Chad Ingels Craig Lang, former president of the Farm Bureau Mike Naig , incumbentDan Zumbach , state senatorTim Gannon (D)
U.S. executive branch officials United States House of Representatives [ edit ] All of Iowa's four seats in theUnited States House of Representatives were up for election in 2018.
Iowa General Assembly [ edit ] The 25 odd-numbered Iowa Senate seats were up for election in 2018, as were all 100 Iowa House seats.
^ "Candidate List - Certified June 5, 2018 Primary Election" (PDF) . RetrievedMay 23, 2018 .^ Rucker, Philip; Denyer, Simon (December 7, 2016)."Trump picks Iowa Gov. Terry Branstad — a 'friend' of China's leader — as Beijing ambassador" .The Washington Post . RetrievedDecember 8, 2016 . ^ "2018 Iowa Gubernatorial election results" . RetrievedJanuary 10, 2022 .^ "2018 Iowa Attorney General election results" . RetrievedJanuary 10, 2022 .^ "2018 Iowa Secretary of State Democratic primary results" . RetrievedJanuary 10, 2022 .^ "2018 Iowa Secretary of State Republican primary results" . RetrievedJanuary 10, 2022 .^ Jacobson, Louis (June 4, 2018)."Secretary of State Races Are More Competitive and Important Than Ever" . Governing. RetrievedSeptember 22, 2019 . ^a b Barack Obama [@BarackObama] (August 1, 2018)."Today I'm proud to endorse such a wide and impressive array of Democratic candidates – leaders as diverse, patriotic, and big-hearted as the America they're running to represent:" (Tweet ). RetrievedAugust 1, 2018 – viaTwitter .^ "2018 Iowa Secretary of State election results" . RetrievedJanuary 10, 2022 .^ Petroski, William (March 7, 2016)."Iowa Treasurer Michael Fitzgerald will seek 10th term" .The Des Moines Register . RetrievedJuly 15, 2016 . ^ Opsahl, Robin (November 5, 2018)."Democrat Rob Sand topples incumbent Mary Mosiman for Iowa state auditor" .Des Moines Register . RetrievedOctober 16, 2025 .Rob Sand's big investment paid off: The Democratic former assistant attorney general defeated incumbent Mary Mosiman in Iowa's state auditor race. ^ Borg, Dean (April 22, 2016)."Iowa Secretary of Agriculture Bill Northey" .Iowa Public Television . RetrievedJuly 15, 2016 . ^ Henderson, O. Kay (December 7, 2016)."Branstad calls ambassadorship 'extraordinary opportunity…new mission' " .Radio Iowa . RetrievedMarch 22, 2017 . ^ Henderson, O. Kay (December 10, 2016)."Northey would be interested in lieutenant governor role" .Radio Iowa . RetrievedMarch 22, 2017 . Official Attorney General campaign websites
Official Secretary of State campaign websites
Official State Auditor campaign websites
Official Secretary of Agriculture campaign websites
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