Democratic candidate for the U.S. Senate seat currently held by Chuck Grassley, will visit Marion County this weekend. Roxanne Conlin will be in Knoxville Sunday to speak with local activists and supporters. Conlin owns and manages a law firm in Des Moines. She has served as a United States Attorney in Iowa and received the Democratic nomination for Governor in 1982. Conlin will be at Farm Bureau Insurance located at 1017 North Lincoln Street at 12pm Sunday.