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Incumbent Richard Jorgensen, a Republican, is unopposed in the primary. Two Democratic candidates are vying to challenge Jorgensen in November: Jeffrey Jacobson and Judith Lukas.
Votes will be counted in contested races after polls close in Illinois at 7 p.m. Central. See statewide election results here. Last minute questions about voting? View our voter guide. Here is one for Chicago residents and one for suburban residents.