The 2018 United States House of Representatives elections in Iowa were held on Tuesday, November 6, 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 3âÂÂ1 Republican majority to a 3âÂÂ1 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 , these results were also the last time the Democrats would achieve either due to Iowa's significant shift towards the GOP.
Results of the 2018 United States House of Representatives elections in Iowa by 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.
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.
Finkenauer went on to flip the district; this was one of many victories in swing districts for Democrats in a blue wave election.
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.
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.
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.
Declined
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.
King declined to debate Scholten during the general election campaign.
King won by the slimmest margin of victory in his congressional electoral career.
Official campaign websites for first district candidates
Official campaign websites for second district candidates
Official campaign websites for third district candidates
Official campaign websites for fourth district candidates