(Hillsboro, OR) -- The four leading candidates for the Republican nomination for governor are debating on Thursday. Marion County Commissioner Danielle Bethell, state Rep. Ed Diehl, state Sen. Christine Drazan, and former NBA player Chris Dudley will all take the stage the NW Event Center in Hillsboro. The debate takes place from 7:00 p.m. to 8:30 p.m. After the 90-minute debate, the candidates have been invited to a question and answer session with the press. Bethell and Diehl have already confirmed their attendance at the follow-up event.