CNN) — Mark Robinson, the controversial and socially conservative Republican nominee for governor of North Carolina, made a series of inflammatory comments on a pornography website’s message board more than a decade ago, in which he referred to himself as a “black NAZI!” and expressed support for reinstating slavery, a CNN KFile investigation found. Despite a recent history of anti-transgender rhetoric, Robinson said he enjoyed watching transgender pornography, a review of archived messages found in which he also referred to himself as a “perv.” The comments, which Robinson denies making, predate his entry into politics and current stint as North...