Herman Cain has spent very little time in Iowa, in sharp contrast to Michele Bachmann. His long promised bus tour only materialized a few days before the Straw Poll.
Herman Cain visited Iowa 24 times since announcing his run this spring, and he announced his Iowa bus tour the end of July, just a week ahead of time.
http://spectator.org/blog/2011/07/26/herman-cain-will-make-iowa-bus