As such getting the count absolutely correct isn’t necessarily as important vs more systemic biases like gerrymandering or voter suppression. The vote may be rigged before people started casting ballots, but that doesn’t make voting useless. It’s the strongest signals that are most important and that’s still preserved.
History lesson: The 2004 Washington state governor's election was decided by a mere 129 votes, and only after multiple recounts and repeatedly "finding" boxes upon boxes of supposedly uncounted ballots in the weeks following election day kept altering the totals and overturned the original result. The election was extremely controversial and not decided until two days before Christmas. Due to these irregularities, many people did not accept the results for years afterward.
https://en.wikipedia.org/wiki/2004_Washington_gubernatorial_...
Even more bizarre, the election closely shadowed the plot of the movie Black Sheep, which was released 8 years before.
The explanations given in the wikipedia article seem pretty plausible.
https://en.wikipedia.org/wiki/2004_Washington_gubernatorial_...
I don't see how it's any different what happened in the 2020 election, where Trump appeared to win at first, but a bunch of mail-in ballots (which were counted later) turned it around. While I can see why it might seem superficially suspicious, such phenomena is inevitable if the pool of mail-in (or other forms of voting liable to get delayed/incorrectly rejected) ballots lean one side.
God help us that Pennsylvania mandates mail-in ballots can only start being counted on election day.
This is also a good argument in favor of decentralized voting management, as much of a shitshow as it may be. Centralizing the management of voting under the authority of the people voting intends to kick out of power is potentially self-defeating.