Georgia Representative John Lewis, at the Washington Post
Andrew Cohen, at The Atlantic
Eric Posner, at Slate
On the narrow point that maybe coverage decision rules aren't optimal perhaps Roberts has a point, but it seems like an awful reason for the court to step on legislative prerogative. There was no argument that I'm aware of (I haven't read the decision - just characterizations of it by people smarter than me) that says the VRA itself is unconstitutional. But by stepping in on a legislative task in a Congress that is not inclined to pass anything they've effectively destroyed the principal guarantor of the fifteenth amendment.
Could it be remedied in the future? Sure, perhaps. We could get new decision rules and everything could be fine. But a lot of damage could be done in the interim and it still doesn't justify a terrible ruling.