@Bill_Clinton12 and @JoeBiden2008, but apparently, his group of Twitter followers have been greatly enlarged by fakes.
Now, I'll give the Romney campaign a brief benefit of the doubt. Maybe a friendly spammer thought s/he was doing the campaign a solid. On the other hand, a superficial tweak like trying win the "war" on social media by follower count is just the kind of useless thing the campaign that believes in a place called Amercia might do.
Oh--I retroactively didn't use the above blog-title. That's just mean.