I agree that there really isn't any evidence of rigging. But I disagree with your contention that it is rare to have close states in close elections. Even in the 2000 Bush Gore election, New Mexico was actually a closer vote, with Gore winning by just 366 votes. While not quite as close, in that election Iowa was within 4144 votes, Wisconsin was within 5708 votes, Oregon was within 6765 votes, and New Hampshire was within 7211 votes. That is five states that could have been swung with just a couple compromised machines in that election. Maybe even just one compromised machine in some states.
And close elections aren't that uncommon. In about 8 of the 57 elections we have had (14%), one state could have made the difference (there were two ties before the 12th amendment). So there are fairly regular opportunities to throw an election if one wanted to do so.
I don't understand your point that a person has to select the correct precinct. A rigged vote in any precinct in any close state could sway that state. You'll have months to prepare since you'll know that the race is close and which states are close. Find a precinct that seems more lax than the others.
I said 400 votes in a state with that much population, and hence the high number of electoral votes. None of the examples you provide invalidates that statement. New Mexico has 1/10th the population of Florida. In relative terms, the vote was about 10x closer in Florida. This matters because the likelihood of a state like Florida changing the total election outcome is much higher than for New Mexico. It IS an extreme rarity that tampering with a few hundred or even a few thousand votes will tip an election.
Sorry if I was unclear. They don't have to select the correct precinct. But they do have to select the correct state or
states, knowing in advance the state will be close and by approximately how much. You could go by polling, but if aggregated polling is off by even .5%, which it usually is, that means at least 10's of thousands of votes
randomly shifting in one direction or the other. Depending on the state, the random variance from polls to outcomes could be 100's of thousands of votes. To guard against this uncertainty, you'd have to over-compensate by tampering with a lot more votes than you might actually need. And since you can't predict which state would be a tipping point, and indeed, it isn't all that common that only one state tips the election, you'd have to tamper with multiple states. In the example I gave from the TV show "Scandal," the campaign doing the tampering got absurdly lucky that their minimal tampering in one precinct actually changed the outcome, because they couldn't have known it would all come down to the tiniest margin in one state. And since the likelihood of their tampering actually changing the outcome was low, would they have actually taken the risk of getting caught?
If you had close polling, which we do not have in this particular election, at a minimum you'd want to tamper with machines in at least several states and shift 10's of thousands of votes in each state. And even that would be nowhere near a guaranteed outcome. The requirement to tamper with machines in multiple states is a real kicker. It means that the tampering could not be merely opportunistic, i.e. there happens to be a corrupt election official in one state who is someone'e brother, friend or whatever, and is willing to give would be tamperers access to voting machines in that state. Rather, it would have to be a coordinated effort crossing state lines, involving multiple corrupt officials. Probably a bribery scheme.
There is literally
zero evidence of coordinated election fraud in national elections in this country, at any time in its history. "Voter fraud" so far is individuals taking it upon themselves to cast a vote using someone else's identity. Even this doesn't happen often, and there is no evidence that one side does it more than the other, so in the long run, the already infinitesimal impact of it gets cancelled out.
Sure, we might have a campaign or group of powerful interests who risk serious jail time by bribing a bunch of corrupt officials, themselves risking serious jail, all to give one candidate a somewhat better chance of winning an election. Consider the risk-benefit of such a scheme.
But hey, anything is possible. It's just a matter of probabilities.