Maybe that is because he had already indicated that he might.
http://video.app.msn.com/watch/video/would-herman-cain-run-for-vp/6ddm89b?cpkey=d5c130fc-5f4f-4fc4-975b-e0708e6dbb54%7C%7C%7C%7C
Hey you was the one that asked the question.