The 2022 contested primary election in House District 37 was decided for the Republican Party. Barb Kniff-McCulla defeated incumbent House District 28 Representative Jon Thorup by 70% to 30% of votes of those in the party living in the district representing all of Marion County outside of Knoxville and portions of Jasper and Mahaska Counties south of Newton and west of Oskaloosa. Kniff-McCulla will run against Democrat Mike Overman in the General Election in November. Helena Hayes defeated Republican District 79 Incumbent Dustin Hite in the new House District 88 with 57% to 43% of the vote, encompassing most of Mahaska County, all of Keokuk County, and a portion of Jefferson County. Hayes will run against Democrat Lisa Ossian in November.