59% — Will Maine Governor winner be Republican party and Maine Senate winner be Democratic party
Leader: Democrats sweep at 59% · Kalshi 59% · 3 contracts · $106 volume · medium confidence
Updated 2026-08-10 07:34:31 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 3 outcomes.

Why this matters:
This probability reflects the likelihood that Maine voters will elect a Republican governor while simultaneously choosing a Democratic state senator in the 2026 election cycle. Currently priced at 4 cents, this mixed-outcome scenario is the least likely of the four possible combinations, suggesting markets view it as relatively improbable compared to a Democratic sweep (51%) or a Democratic governor paired with a Republican senator (32%). The pricing reflects expectations about Maine's political leanings, candidate strength, and regional voting patterns. This outcome would require divergent voting behavior across statewide offices, which historically occurs less frequently than straight-ticket outcomes. Key drivers include candidate quality, campaign momentum, and whether national partisan trends align with or diverge from state-level preferences. The resolution will occur following Maine's November 2026 general election when both offices are decided simultaneously.

Key factors:
- Maine has voted Democratic in five consecutive presidential elections (2000-2020), suggesting structural Democratic advantage in statewide races
- Split outcomes require voters to support different parties for governor versus senate, a behavior pattern less common than straight-ticket voting in most U.S. states
- Candidate recruitment and name recognition in each race will significantly influence whether cross-party voting occurs or consolidates around party lines
- Campaign spending and advertising intensity between now and November 2026 may shift voter preferences across the two separate contests
- Approval ratings of the incumbent governor and senator (if applicable) and broader national political environment could accelerate or decelerate movement toward this mixed outcome

Contracts:
- Will Maine Governor winner be Democratic party and Maine Senate winner be Democratic party?: Democrats sweep — 59¢ Kalshi $0 (weight 0%)
- Will Maine Governor winner be Democratic party and Maine Senate winner be Republican party?: Democratic Governor, Republican Senator — 33¢ Kalshi $100 (weight 94%)
- Will Maine Governor winner be Republican party and Maine Senate winner be Republican party?: Republicans sweep — 3¢ Kalshi $6 (weight 6%)

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## 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.

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*Last verified: 2026-08-10T07:20:52.001Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "59% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/mesengovcombo
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Maine%20Governor%20winner%20be%20Republican%20party%20and%20Maine%20Senate%20winner%20be%20Democratic%20party
Provider: SimpleFunctions — https://simplefunctions.dev