[grumpygresh]

If they know which voting districts were mathematically impossible that should be probable cause to trigger an audit. If there were a lot of mail in ballots, there’s a paper trail for that. Someone had to Inspect the ballot and record the vote.
As far as electronic machines are concerned, I’m not sure how that could be audited, but someone with experience with the machines could probably figure out if there’s tampering.
But it appears that mail ins were the primary means of fraud and involves A preponderance of Dem votes.
Let’s see if mail ins were recorded and then destroyed.

[KarlInOhio]

Since the USPS takes pictures of every envelope it processes, it would be interesting to see if they have timestamped photos for all of these absentee ballots of if the 3AM delivery trucks didn't even bother with going through the USPS. Even if they are "postmarked", making a rubber stamp looking like a USPS postmark would be trivial.

[jonrick46]

If there was illegal tampering with the voting machine software, even my son-in-law who works at Microsoft would be able to look at the machine code language and determine what was done. Even if the illegal patch was deleted, a file recovery program can scan a hard drive for these deleted files and restore them.