I started with 2 simple hypothesis, if you wanted to manipulate the election for the most bang for your buck, you’d either go after counties that voted for Clinton in ’12, or after a specific type of machine/OS you could hack quickly.
With that in mind the author (and submitter) dug through the publicly available data in an independent search for evidence, or lack there of, of manipulation.
Ok, first let’s take a test case. Door County voted for Obama (7 points) in and has paper ballots with an optical scanner. Hackable? Yes, but less of a target than touchscreen voting. Trump won Door County by 3 points. Next let’s look at Grant County, another narrow win for Obama in ’12, but this time with a touchscreen voting system we’ll call Dominion. Trump wins by 10 points in ’16.
While the results aren't exactly exhaustive, they are indicative, accurate, and interesting.
You can tune a piano, but you can't tuna fish. You can tune a filesystem, but you can't tuna fish. -- from the tunefs(8) man page