isn't it so that both the district court and alabama were laboring under the impression that retrogretion meant you have to keep the same numbers? >> the district court made an express fact finding here that our goal was to prevent substantial -- >> if that's a misunderstanding of what's section 5 requires, then the whole thing is infected by that mistake. >> well, i disagree with you about it being a misunderstanding. in 2006, congress told us we would not diminish the ability to elect black voters. my friend professor testified against the inclusion of that language in congress and he told them if they included that language it would, quote, lock in place, end quote the majority black districts in the south. if you cannot diminish the ability to elect, if there's a safe majority black district or 100% chance, you cannot drop that to where they have a 50% or 60% chance. that's what we were setting out to do. this court said that they have lead way in complying with section five that we do not have to hit things right on the top. >> i don't understand your response. there are different in