Daniel Biss vs. John Elleson polls and 2026 forecast (Illinois's 9th District)
Our forecast gives Daniel Biss (D) a >99% chance of winning (rating: Safe D), as of October 16, 2026. Expected margin: Biss +44.5; in 80% of simulations the margin falls between Biss +36.3 and Biss +52.6. Incumbent: Jan Schakowsky. 2024 presidential result here: D+37.0.
House forecast · How the forecast works