Short version: Section V (enforcing preclearances for racial gerrymandering) was not touched, but Section IV (that dictates the criteria used to determine when such a thing would be necessary) was killed, on the grounds that said criteria has long since passed its sell-by date. This effectively kills Section V, because Congress will not pass new criteria any time soon. Chief Justice Roberts made the ruling, and it’s… elegantly vicious, in its way.
We will now pause as the Online Left freaks.