Iowa voters head to the polls on November 3 in a midterm election that will decide whether President Donald Trump's Republicans keep control of Congress, and the Hawkeye State sits squarely in the middle of the fight. Republican Congresswoman Ashley Hinson and Democrat Josh Turek are competing for the Senate seat being vacated by retiring Republican Senator Joni Ernst, according to Vanguard, which published a rundown of the country's most competitive races on October 20.
The stakes are straightforward. Republicans hold a 53-47 Senate majority, and Democrats need a net gain of four seats to take the chamber. In the House, Democrats need at least 218 seats for a majority. Iowa's Senate contest and three Republican-held House districts in the east and center of the state could offer an early read on whether Democrats are making broad gains or whether the GOP holds the line.
Why Iowa's Senate Race Matters Nationally
The Hinson-Turek race is one of eight Senate battlegrounds identified by Vanguard. Ernst's retirement opened a seat in a state Trump has carried, but the race has drawn national attention because of the issues driving it: soaring agricultural costs and high energy prices.
For Iowa farmers, those are not abstract talking points. Fertilizer, fuel and equipment costs have squeezed margins for several years, and both campaigns are working to convince rural voters they have the better plan. The stakes were clear enough that Trump himself headed to the Midwest to court farmers ahead of the midterms, with stops planned in Kansas and Iowa, as previously reported by Just The News Iowa.
Vanguard reported that agricultural and energy costs are prominent issues in the contest, a dynamic that favors whichever candidate can make the most credible case on rural economic relief.
The Path to Control of Congress
Republicans enter Election Day with a 53-47 edge in the Senate. A 50-50 tie would keep Republicans in charge through Vice President JD Vance's tie-breaking vote, which means Democrats need four Republican seats, not three, to flip the chamber.
The House picture is more scattered. All 435 seats are contested, with 218 Republicans, 214 Democrats, one Republican-aligned independent and two vacancies heading into the election. Democrats need at least 218 seats in the new chamber, and the battle stretches across dozens of districts nationwide rather than a handful of statewide contests.
NBC News reported that Texas, California, Ohio, Florida, Michigan, New York and Pennsylvania have the largest number of competitive House seats this year, though races to watch exist across the country.
What Iowa's House Districts Could Tell Us Early
Three Republican-held districts in eastern and central Iowa could provide some of the first evidence on election night of whether Democrats are making broad gains, according to Vanguard. If those seats hold for the GOP early in the evening, it could signal a rough night for Democratic hopes of reclaiming the House. If any slip, watch for a wider swing.
The Governor's Race: Sand vs. Lahn
Iowans will also choose a governor this year. Democrat Rob Sand, the state's current auditor and the only Democrat holding statewide office, faces Republican Zach Lahn in a race that tests whether the GOP's grip on Iowa state government continues. Thirty-six states are electing governors this cycle, and several contests are unusually competitive, Vanguard reported.
Republicans have dominated Iowa's statehouse for years, and a Sand win would be a significant upset. But with Trump's approval ratings lagging and living costs weighing on voters, both parties are treating the state as genuinely in play.
Headwinds and Unknowns
Several factors make 2026 difficult to predict. Vanguard noted that polling errors, redrawn districts and record campaign spending all add uncertainty to the outcome.
High living costs, the war with Iran and Trump's approval ratings have helped Democrats expand the electoral map, with unusually tight contests even in Republican strongholds such as Texas, where Trump-backed Attorney General Ken Paxton faces Democrat James Talarico, and Alaska, where former Democratic Congresswoman Mary Peltola challenges Republican Senator Daniel Sullivan.
For a forecast of every House and Senate seat, Harvard University's ElectIt project is tracking all 435 House races and every Senate seat on the ballot.
Just The News Iowa has been tracking the state's role in the national fight for Congress, including Iowa's emergence as a centerpiece of the battle for control of Congress.
Other Senate Races to Watch on Election Night
Beyond Iowa, several Senate contests could decide the chamber:
- North Carolina: Former Democratic Governor Roy Cooper faces Republican operative Michael Whatley for the seat vacated by retiring Senator Thom Tillis.
- Ohio: Former Democratic Senator Sherrod Brown seeks a comeback against Republican Jon Husted in one of the country's most expensive races.
- Michigan: Former Congressman Mike Rogers faces progressive Democrat Abdul El-Sayed for retiring Senator Gary Peters' seat, a prime Republican pickup opportunity.
- Kansas: Democratic pastor Adam Hamilton challenges Republican Senator Roger Marshall in a state that has not elected a Democratic senator since 1932. Trump has campaigned for Marshall as polling has tightened.
Frequently Asked Questions
When is the 2026 midterm election?
Election Day is Tuesday, November 3, 2026.
Who is running for Joni Ernst's Senate seat in Iowa?
Republican Congresswoman Ashley Hinson faces Democrat Josh Turek for the seat Ernst is leaving at her retirement.
How many Senate seats do Democrats need to take the majority?
Democrats need a net gain of four seats. A 50-50 tie would leave Republicans in charge through Vice President JD Vance's tie-breaking vote.
Who is running for Iowa governor?
Democrat Rob Sand, the state auditor, faces Republican Zach Lahn in the race to lead Iowa.