Supposedly all goes back to Chaz getting a pretty severe concussion at the tail end of last year's season. Supposedly been dealing with lots of lingering issues related to the concussion including vertigo.
Transcript from one of my favorite SNL skits - the 1992 Presidential Debate. Wish I could find the video.
Bill Clinton: Sam, you must have watched too many of my opponent’s TV spots. I’m tired of the Bush campaign trying to portray my home state as some sort of primitive Third World country...