More screenshots from the forum, where over a decade ago Mr Robinson signed up with his full name and a username he went by on other platforms, show the candidate describing a keen appetite for “tranny on girl porn” and sex with his wife’s sister.

The political world is still reeling from a CNN report that the Republican candidate for North Carolina governor, the current Lt. Gov. Mark Robinson, posted racist and explicit messages on a pornography web site message board a decade ago.

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.