North Carolina's Republican gubernatorial candidate, Lt. Gov. Mark Robinson, called himself a "Black Nazi" and supported reinstating slavery in comments made on a pornographic website, CNN reported Thursday.

Lt. Gov. Mark Robinson of North Carolina, the Republican nominee for governor, vowed to stay in the race and pre-emptively denied the CNN report, which described years-old online remarks it said he made.

Robinson denied the CNN report, which said he referred to himself as a "black NAZI" and expressed support for bringing back slavery more than 10 years ago.