Iowa Primaries Kick Off Midterm Season With Senate, Governor Races Wide Open

Iowa voters headed to the polls Tuesday in primaries reshaped by the simultaneous retirements of two of the state's most prominent Republicans — Gov. Kim Reynolds and U.S. Sen. Joni Ernst — setting off a chain reaction of competitive nomination contests that will echo through November's midterm elections and potentially into the 2028 presidential race.

Both Reynolds and Ernst announced in 2025 they would not seek third terms, creating open-seat scrambles that have drawn crowded fields and national attention. In the GOP Senate primary, U.S. Rep. Ashley Hinson faces former state Sen. Jim Carlin, who won roughly 27 percent of the vote in a 2022 primary against incumbent Sen. Chuck Grassley. State Rep. Josh Turek and state Sen. Zach Wahls are competing for the Democratic Senate nomination.

The governor's race has drawn five Republicans — including U.S. Rep. Randy Feenstra, who carries a formal endorsement from President Donald Trump — and will culminate in a general election against Democratic state Auditor Rob Sand, Iowa's only Democrat currently holding statewide elective office.

Control of the narrowly divided U.S. Senate and House could turn on Iowa's outcomes in November, officials said. Iowa's competitive 1st Congressional District race draws particular national scrutiny. Republican Rep. Mariannette Miller-Meeks faces advertising executive David Pautsch in a rematch primary, in which Pautsch drew about 44 percent in 2024. Democrat Christina Bohannan, who came within one percentage point of defeating Miller-Meeks in 2024, is also competing for her party's nomination.

Polls close at 9 p.m. ET. As of Friday, roughly 48,000 Iowans had already cast early or absentee ballots — about 30,000 in the Democratic primary and more than 18,000 on the Republican side, according to public records.

For Treasure Coast residents, Iowa's results will begin to define the national battlefield for November's midterms, including the contest for control of the U.S. Senate, where Florida's Sen. Rick Scott holds a Republican leadership role. A shift in Senate control would directly affect federal priorities that touch this region — Everglades funding, Indian River Lagoon restoration appropriations and FEMA disaster preparedness dollars among them. Rep. Brian Mast, whose 21st District includes Martin and St. Lucie counties, will be watching results closely as Republicans assess their midterm map.

Results are expected to begin flowing shortly after 9 p.m. ET. November's general election is 154 days away.

This article was generated with AI assistance using publicly available information. It was reviewed and approved by a human editor before publication. TC Sentinel uses AI writing tools in accordance with FTC guidelines.