The election opponent of an Illinois lawmaker arrested this week on a bribery charge claims voters are "fed up" with corruption and the incident has fueled his campaign.

Tom Swiss is a former Cook County Republican activist running against Rep. Derrick Smith in Tuesday's Democratic primary.

Smith is a Chicago Democrat appointed to the House last spring. Federal prosecutors accuse him of accepting a $7,000 bribe in exchange for endorsing a state grant for a daycare.

Swiss says as voters hear about Smith's arrest they "feel betrayed" and his self-described independent race is gaining steam.

House Speaker Michael Madigan's political committee has provided more than $60,000 to Smith's campaign. Swiss and Republicans say Madigan should demand Smith's resignation but Madigan's spokesman says the matter is "under review."