**Incumbent Democrat Sean Casten faces Republican Niki Conforti in Illinois’s 6th Congressional District, a suburban Chicago seat with a D+3 Partisan Voter Index.** Forecasters from Cook Political Report, Inside Elections, and Sabato’s Crystal Ball rate the race Solid or Safe Democratic ahead of the November 3 general election. Casten secured renomination with roughly 76% in the March primary and won the seat by about eight points in 2024, while Conforti prevailed in the Republican primary. The district’s suburban demographics and historical Democratic lean have kept the contest from tightening meaningfully, with trader pricing reflecting a strong likelihood of a Democratic victory by a mid-20s margin. Absent major late developments such as shifts in national conditions or turnout surprises in DuPage and Cook counties, the current consensus favors a comfortable hold for the incumbent.