A peculiar web ad for Herman Cain, starring his campaign manager, Mark Block, emerged late last night. In the video, Block explains his support for his boss — “I really believe that Herman Cain will put ‘United’ back in United States of America,” he says — before taking a drag of a cigarette and exhaling straight into the camera to the sudden tune of Krista Branch’s “I Am America.” Cain rounds out the ad with a long, unsettling smile.