Mass. Governor Mitt Romney is battling with the statehouse over what to do about back cap-gains taxes found in a state court ruling. The Romney line: ’

“We as a government made a mistake,” Romney said. ”By virtue of our mistake, we are now in a setting where certain people may have to go back and retroactively be expected to pay taxes at a rate that did not exist at the time they carried out a transaction. That’s just not fair.”