Races · house · 2020 · Wisconsin

house · open seat

Wisconsin house

← Wisconsin house Wisconsin house →

Safe RR +42.3 forecast· 0 polls · 0 markets

Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
1% (D)
99% (R)
Win probability
Democrat1% (D)
Republican99% (R)
Modelpoliagg-v34 · final pre-election call
Chance of winning across many simulations of the race — not projected vote share.
R+15R+5TIEDD+5D+15
Predicted margin
Point estimateR +42.3
80% CIR+54.3 → R+30.3
The model’s central margin (D-positive) with its 80% interval — the shaded band on the scale.
Model's predicted final margin R +42.3 · 80% CI R+54.3 → R+30.3
Actual result Thomas P Tiffany +21.5 · backtest (race already called)

Momentum

—

insufficient data

Tipping-point P

0.0%

Decisive for chamber control

Market · D-side

—

Cross-platform consensus

News articles · 30d

—

no recent coverage

Where this race stands

Verified

Likely R · model 99% R

No recent polls or markets for this race. PVI baseline (R+11) suggests Likely R.

The poliagg-v34 ensemble forecasts R+42.3 with an 80% CI ranging from R+54.3 (10th pctile) to R+30.3 (90th pctile), giving R a 99% chance of winning.

CITATIONS · likely-r

Forecast · poliagg-v34

Predicted final margin

R +42.3

80% CI: R +54.3 → R +30.3 · win prob 1%

R+60R+30TIEDD+30D+60

Quality · inputs

Data quality · medium

Polls used	0
Days to election	passed
Actual result	Thomas P Tiffany +21.5
Residual σ	6.00pt
Generated	7/1/2026

Editorial ratings · 3 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.

Safe R3

The Cook Political Report

Safe R

Jul 1

Inside Elections

Safe R

Jun 1

Sabato's Crystal Ball

Safe R

Jul 1

Demographic crosstabs

age · education · race · gender

No demographic crosstabs published for this race yet. Most pollsters release only topline numbers; subgroup breakdowns (age, education, race, gender) appear here when a pollster publishes them.

Rating timeline

May 15, 2026Safe Rmodel

Verification trail

Polls verified0 / 0deterministic

Polls flagged—none

Markets ingested0 platformsnone listed

FEC filings—no filings yet

Endorsements—nothing to sync

News coverage< 5 articlesGoogle News

Method · bounds + percentage totals + date-order checks