Key Senate Race Closer Than Ever

The race for Iowa’s open U.S. Senate seat remains extremely competitive, with a new poll showing Democrat Josh Turek holding a narrow one-point lead over Republican Rep. Ashley Hinson.

The InsiderAdvantage survey, conducted Sept. 22-23 among 1,200 likely voters, found Turek at 47% and Hinson at 46%.

With a margin of error of 1.9 percentage points, the candidates are effectively tied within the survey’s statistical range.

The latest numbers reinforce what has become increasingly clear: Iowa could be home to one of the most closely watched Senate contests of the 2026 midterm elections.

Iowa Senate Polls Show a Close and Unpredictable Race

Recent surveys have produced noticeably different results, making it difficult to determine whether either candidate has established a clear advantage.

A Marist poll conducted Sept. 17-20 showed Turek ahead by a wider margin, receiving 50% support compared with 42% for Hinson among 1,050 registered voters.

That survey had a margin of error of plus or minus 4.4 percentage points.

Other September polling has shown a considerably tighter race.

Trafalgar Group reported Hinson leading 44% to 42%, while a Co/efficient survey placed Hinson at 48% and Turek at 43% when voters leaning toward a candidate were included.

Cygnal found the two candidates tied at 42.9%.

Rasmussen Reports, meanwhile, showed Turek leading Hinson 45% to 40%, while YouGov also found Turek ahead among likely voters.

Taken together, the polls suggest that Iowa voters remain closely divided.

Polling Average Shows Virtually No Separation

The RealClearPolitics polling average had Turek ahead by just 0.4 percentage points based on surveys available through Sept. 20.

Such a narrow margin highlights how competitive the race has become.

Individual polls can vary significantly depending on their methodology, sample size, timing and whether they survey registered voters or likely voters.

That makes broader polling trends especially important in a race where neither candidate appears to have established a consistent advantage.

Trump Approval Numbers Add Another Factor

President Donald Trump’s standing with Iowa voters could also influence the Senate contest.

The Marist survey found Trump with a 41% job approval rating among registered Iowa voters, while 58% said they disapproved of his performance.

The same poll found Democrats leading Republicans 50% to 45% on the generic congressional ballot.

Those figures represent a potentially important political backdrop in a state where Republicans have performed strongly in recent statewide elections.

At the same time, voter expectations tell a somewhat different story.

Most Voters Still Expected Hinson to Win

Although Turek led the head-to-head matchup in the Marist survey, 59% of respondents said they believed Hinson would ultimately win the Senate race.

That gap between voter preference and voter expectations illustrates the uncertainty surrounding the contest.

It also suggests that some voters may still view Republicans as having a structural advantage in Iowa despite increasingly competitive polling.

Iowa Senate Race Rated a Toss-Up

The Cook Political Report has rated the Iowa Senate contest a toss-up.

The race was moved from “Lean Republican” to “Toss Up” in August after polling showed the contest becoming increasingly competitive.

The shift drew additional attention because Trump carried Iowa by double digits in the 2024 presidential election.

That previous Republican strength makes the close Senate polling particularly notable heading into the final stretch of the 2026 campaign.

Why the Iowa Senate Race Matters

Control of the U.S. Senate can come down to only a handful of competitive states, making races such as Iowa especially important nationally.

Both parties are expected to devote substantial attention and resources to contests where the margins remain narrow.

For Hinson, the challenge is maintaining Republican support while winning enough independent and undecided voters to secure the open seat.

For Turek, the opportunity lies in converting favorable polling into enough support to overcome Iowa’s recent Republican advantage in statewide federal races.

What Voters Should Watch Next

Several factors could determine how the Iowa Senate race develops before Election Day.

Future polling will show whether the recent Turek leads represent a lasting shift or normal survey-to-survey variation.

Turnout among Republican, Democratic and independent voters will also be crucial.

National political conditions, economic concerns and voters’ views of the Trump administration could further shape the final result.

For now, the clearest conclusion from the polling is that neither candidate has pulled decisively ahead.

With Hinson and Turek separated by only small margins in several surveys, Iowa remains one of the Senate races worth watching closely as the 2026 midterm elections approach.