Primary
Primary held June 2, 2026.
Democratic Primary
| Candidate | Votes | % | |
|---|---|---|---|
| Sarah Trone Garriott ✓ | 54,651 | 100.0% |
Republican Primary
| Candidate | Votes | % | |
|---|---|---|---|
| Zach Nunn ✓ | 48,302 | 100.0% |
Full calendar and every race: Iowa primary guide
Race Overview
Candidates
Average reflects all polls from the last 90 days; table shows the most recent 30 days or the newest 3 polls, whichever is more — subscribe for the full history. How accurate is each pollster? →
No polls in the last 90 days.
Questions About This Race
Is the 2026 IA-03 House race competitive?
It is not considered a top-tier battleground: the expert consensus rates it Likely R, meaning Republicans are clearly favored but an upset is not impossible.
When is the 2026 IA-03 House race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average is the unweighted mean of every scientific public poll of the race from the last 90 days — we do not exclude pollsters. Each race page lists the individual polls behind the average with pollster, field dates, sample size, and margin of error. Full details: pollingsource.com/methodology.
Independent Expenditures Updated 3 hours ago
Top Spenders
- THE CONSERVATIVE CAUCUS DBA AMERICANS FOR CONSTITUTIONAL LIBERTY $22,998
- WELCOMEPAC $12,898
- ACTIVATE AMERICA $2,394
- GIVEGREEN UNITED ACTION $32
Full outside-spending research — every committee, every race →
Race News
No news coverage yet for this race.