Kentucky has non-partisan judicial elections. On June 19, 2014, Robert Winter Jr. sued the Kentucky Judicial Conduct Commission, because it had threatened him with sanctions for having sent campaign literature to the voters in his district, telling them that he is a life-long Republican and that three of his opponents (whom he named in the literature) are registered Democrats. The case is Winter v Wolnitzek, eastern district, 2:14cv-119. See this story about his lawsuit.