North Carolina Republican gubernatorial candidate, Mark Robinson, is under fire for a trove of controversial posts he made on a pornographic online forum before his entrance into politics—building on his long history of incendiary online rhetoric.

The Tar Heel State, where the GOP gubernatorial candidate is steeped in controversy, is a critical battleground in the presidential race.

The CNN report describes a series of racial and sexual comments Robinson allegedly posted on the message board of a pornography website more than a decade ago.