Roller coaster. That’s the only way to describe this down 600 points one day, up 400 the next and down 500 the next day kinda week. But we’re moving on. The Ames straw poll is coming up. Rick Perry is about to upend the GOP presidential field. And Sarah Palin is about to crash the entire party for the sole purpose of grabbing attention. Once a star, always a star. Although, with this Iowa stunt, Palin is moving into diva status.