DULUTH, MN (KDAL) - Several non profit groups are holding a forum for the Democratic candidates running for Congress in the 8th District.  The event will be from 7 to 8:30 on Thursday at the College of St. Scholastica's Somers Hall Lounge.  All three of the candidates vying to face Representative Chip Cravaack in the fall are expected to attend.  The forum features Jeff Anderson, Tarryl Clark and Rick Nolan and will focus on federal spending issues.  The moderator is Joan Peterson from the League of Women Voters and there will also be an opportunity for questions from the audience.  The event is free and open to the public.