36% — Will Iowa Governor winner be Democratic party and Iowa Senate winner be Democratic party
Leader: Zach Lahn and Ashley Hinson win at 36% · Kalshi 36% · 4 contracts · $76 volume · medium confidence
Updated 2026-07-14 08:34:09 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 4 outcomes.

Why this matters:
This probability represents the likelihood that both Iowa's next governor and U.S. Senate winner will be Democrats. Currently priced at 49%, it reflects the leading outcome in a four-way race covering all partisan combinations for these two offices. Iowa's political leanings have shifted rightward in recent cycles, making split-ticket outcomes more probable than a Democratic sweep. The price reflects uncertainty around 2026 candidate strength and prevailing economic conditions closer to the election. Key dynamics include Democratic candidate viability in a state trending Republican, and whether any national political environment shift occurs before November 2026. Election Day 2026 will resolve this uncertainty.

Key factors:
- Iowa has voted Republican in the last three presidential cycles (2016, 2020), establishing a baseline Republican lean in statewide elections
- Democratic probability of 49% implies markets estimate Republicans slightly favored but without overwhelming dominance in this two-office combination
- The Republican-sweep scenario (49%) and Democratic-sweep scenario (36%) are the market's two largest outcomes, suggesting straight-ticket voting patterns dominate
- 24-hour trading volume concentrates on the mixed outcomes ($1,900 on Sand-Hinson), indicating this contract attracts more active hedging or opinion flow than pure outcomes
- November 2026 general election date represents the sole resolution mechanism with no intervening primaries or major scheduled events before then that typically shift statewide race expectations

Contracts:
- Will Iowa Governor winner be Republican party and Iowa Senate winner be Republican party?: Zach Lahn and Ashley Hinson win — 36¢ Kalshi $0 (weight 0%)
- Will Iowa Governor winner be Democratic party and Iowa Senate winner be Republican party?: Rob Sand and Ashley Hinson win — 29¢ Kalshi $61 (weight 80%)
- Will Iowa Governor winner be Democratic party and Iowa Senate winner be Democratic party?: Rob Sand and Josh Turek win — 27¢ Kalshi $15 (weight 20%)
- Will Iowa Governor winner be Republican party and Iowa Senate winner be Democratic party?: Zach Lahn and Josh Turek win — 3¢ Kalshi $0 (weight 0%)

---

## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

---

*Last verified: 2026-07-14T08:20:51.707Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "36% per prediction markets (SimpleFunctions, July 2026)"
Canonical: https://simplefunctions.dev/answer/iasengovcombo
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Iowa%20Governor%20winner%20be%20Democratic%20party%20and%20Iowa%20Senate%20winner%20be%20Democratic%20party
Provider: SimpleFunctions — https://simplefunctions.dev