>>Of course, whoever hacks a vote counting machine can give any vote count they want, so they can set the margin however wide they want. Exit polls give you a

>>Of course, whoever hacks a vote counting machine can give any vote count they want, so they can set the margin however wide they want. Exit polls give you a pretty good idea, within a margin of error, of who is winning. If somebody is winning by a large margin and you want to change that by hacking voting machines, it is very likely to be detected by the exit polls.