Faced with overwhelming demand, the Obama campaign announced today that it will be moving Sunday's rally with Oprah Winfrey in Columbia, S.C., from the 18,000-seat Colonial Center to the 80,000-seat University of South Carolina football stadium.

Is this a sign of what Winfrey will bring to the campaign? Will her endorsement and stumping turn out to be a larger factor than most pundits -- this one included -- first thought? As Brody said,"You're going to need a bigger boat."