Will the Republicans win the Wisconsin governor race in 2026?

Analysis

Seven of eight informed agents agree the national environment strongly favors Democrats. Discarding Agent 1 (no research) and down-weighting Agent 8 (underweighted clear evidence), the informed consensus clusters at 18-22%. The market at 18.5% is already efficiently priced near the bottom of this range. My estimate of 20% reflects slight upward adjustment for open-seat uncertainty and Democratic primary risk, but the edge vs market (~1.5%) is far too small to trade. The strongest agents (2, 4, 5) all landed at 18% with high-quality sourcing from Marquette polls, Split Ticket analysis, and Silver Bulletin data. The YES=0.20 bucket warning applies here - this is exactly the zone where marginal edges are unprofitable.

Key Evidence

Trump approval in WI at 39/54 (-15 net) combined with midterm penalty creates overwhelming headwinds; Tiffany has -4 net favorability overall and -7 among independents

Risks

Democratic primary could produce a weak nominee (Barnes lost 2022 Senate race) or be highly divisive; national environment could shift significantly over 8 months; open seat dynamics are genuinely different from incumbent races