Scrutinel— 2026 midterms

UpdatedAug 24, 2026, 5:12 AM UTC
To election day72 days
Simulations200,000

Illinois 6th District

Currently held by a Democrat · incumbent running

Democrat
Sean Casten
95%
Republican
Niki Conforti
5%
ForecastLikely D
Projected margin
D+18.4
80% range
D+4.6 to D+32.3
Partisan lean
D+7.3
Tipping-point chance
0.29%
Uncertainty multiplier
1.80×

The 80% range comes from 200,000 simulations in which this race’s error is correlated with every other race through the national, state and demographic layers.

How the estimate is built
Fundamentals 100.0%
Polling average
no polls
Fundamentals
D+19.1
Blended
D+19.1
Similar-race shift
+0.1
Polling

No public polling of this matchup. The forecast rests on fundamentals plus the polling residuals of demographically and politically similar races — which is the normal case: most of the 435 House seats are never polled.

Fundamentals
Partisan lean
D+7.3
Elasticity
1.01
Incumbency
+3.4
Candidate experience
0.0
Fundraising
+2.8
National environment
D+5.3
Expected margin
D+19.0

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