Will the Democrats win the Iowa Senate race in 2026?
Why it moved: +4 points at 19:28 UTC, after The Hill: GOP Senate nominee Hinson: Iowans 'shouldn’t have to foot the bill' for Iran war — the latest article on its stories before the jump; what followed, not what caused it.
Price data
| Time | Chance of yes |
|---|---|
| now | 44% |
| 21 Sept, 19:28 UTC | 44% |
| 17 Sept, 02:23 UTC | 40% |
| 16 Sept, 02:23 UTC | 42% |
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What counts
The Yes outcome occurs if a Democratic nominee wins the 2026 Iowa Senate election, including any run-offs. The No outcome applies if a Republican or independent candidate wins, regardless of their past affiliations. Readers often mistake the linked news story about the GOP nominee for the resolution source; the market only resolves when the Associated Press, Fox News, and NBC all call the race for the same candidate.
Written from Polymarket's resolution rules by the same model that writes our headlines. The rules on Polymarket are what decides it.
Outcomes
- Yes 44%
- No 56%
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