Whatever the result tomorrow, voter suppression is one of the big stories of this campaign and its enduring scandal. The Republican Party before 2012 was a party that certainly did not want black and brown and poor Americans voting, so it's long been officially racist and classist in this particular sense.
But up to now its measures were local and somewhat haphazard--scare-tactic fliers circulated in black neighborhoods, GOP elections officials "forgetting" to ship the right number of voting machines to minority areas, that sort of thing. These things were usually perpetrated with plenty of plausible deniability.
