Four top operatives on North Carolina Lt. Gov. Mark Robinson’s campaign have stepped down, the campaign announced on Sunday.

Several top staffers in North Carolina Republican Lt. Gov. Mark Robinson's campaign for governor have quit their posts, marking more fallout from a CNN report outlining evidence that he made disturbing posts on a pornography website’s message board more than a decade ago.

The embattled GOP nominee for North Carolina governor told supporters at Fayetteville Motor Speedway that "we're going to focus on the issues."