The campaign arm of America’s Republican governors will not invest any more resources in the North Carolina gubernatorial election following the disclosure of lewd comments made on a pornography website by the party’s nominee, Lieutenant Governor Mark Robinson, more than a decade ago. Mr. Robinson denies that the comments are his. 

The Republicans Governors Association — an outside spending group charged with electing Republicans to governors’ offices in all 50 states and America’s territories — says that they will not renew advertising spending that is due to expire on Tuesday.