It's those new electronic voting machines. Sure, they were all "certified" before the election as working properly.
But three points:
1. In the last year, numerous computer experts have shown how very easy it is to tamper with these machines.
2. A machine can go "out of calibration." When that happens, a vote for one candidate is recorded as a vote for another. Calibration errors are thought to be quite rare, but who knows? 3. These machines do not generate a backup paper trail. So in suspicious cases there is no way to do a hand recount.
I'm not buying into any conspiracy at this point, because not a shred of evidence has surfaced. But I still don't like the whole electronic idea. As you said, it's too easy to manipulate things.
If what I’ve read is correct, we generally have SEIU union members ‘calibrating’ the machines. And if I understand the technology correctly, calibrating them for one candidate to pick up a percentage of votes intended for his opponent isn’t hard at all.
Also, there was the massive and clearly coordinated illegal expulsion of GOP poll watchers early in the day in both PA and FL. IMO that was likely a planned time for loading votes into the machines. It is also common for Democrat operatives to load votes into the machines before the polls open as well, so that could have been done in other swing states.