Just fake the polls, then flip the vote to mirror the fake polls. Anything electronic can be easily faked, and we know that the results never match the exit polls, and that the manual ballot counting after a contested count always turns out different when they are allowed to take place.

There were probably state actors last election that interfered with the planned electronic counting fraud, seeing how truly and utterly surprised everyone was. Some rogue nsa nerds probably overturned planned cia meddling that was on a much grander scale than Karl Rove's previous attempts.