Carbondale – Three candidates for the 12th Congressional district are in Carbondale toniight for their last depate before the election on November 6th. The debate will be a closed-set event on the SIU campus starting at 7:00pm. Incumbent Representative Mike Bost and opponents Brendan Kelly and Randy Auxier will field questions for 90 minutes. The race is considered one of the closest in the country, with Bost and Kelly virtually tied in the polls.