David Duke founded the Louisana KKK in 1974 and was already running for office with that affiliation by 1975. But Louisiana politics as a whole are whack. Here’s a terrific long-form piece from L.A. Times Magazine when Duke ran for governor in 1991: http://articles.latimes.com/1991-10-13/magazine/tm-1175_1_buddy-roemer
Opponent Edwin Edwards, who by then was already a known philanderer: “I am a wizard under the sheets, too.”