U.S. Senate elections in Illinois

Illinois's U.S. Senate seats are held by Democrat Richard J. Durbin and Democrat Tammy Duckworth; Duckworth won the most recent race by 15.3 points in 2022. Durbin has held one seat since 1996 and Duckworth the other since 2016. The 2022 race put Duckworth ahead of Kathy Salvi, 15.3 points clear. Across 40 elections since 1914, Republicans have won 16 and Democrats 24. Of those, the closest was 1940, decided by 0.51 points; the widest 2004, by 42.9 points.