There is plenty of ammo that can be used against Romney. The Bain Capitol thing seems insignificant to other issues that have the potential to dog Romney. His unwillingness to release his tax records could be damaging enough if any of the other candidates are are using it. The TV news says nothing about it that I've noticed.
Feel free to mention anything I've missed.
Why can't the other candidates go negative on Romney and bring him down in the polls?