OK...
I was a poll worker in Maricopa County.
I personally witnessed the following -
County Officials facilitating the violation of election integrity and audit laws by failing to provide sufficient ballot box seals, instructing poll workers not to make use of ballot box seals, transporting ballots in non-sealed containers, and transporting ballots without front end audit counts.
Private contractors badged as employees of both the County and Dominion entering polling places and inserting USB drives into the precinct-based tabulators on election day without any audit or seal. Poll workers were instructed not to question or record their actions by County Officials.
County Officials deliberately falsifying audit records, or directing the falsification of same, and threatening front line poll workers if they failed to comply with said directions to falsify audit records.
Unsecure handling of ballots, results cartridges, and audit materials in such a way as to make it impossible to certify a clean election without fraudulent declarations. Bags of unsecured and unsealed ballots were intermingled with sealed bags, the seals were then broken, thus eliminating any possibility of separating 'clean' from potentially fraudulent ballots.
Deliberate obfuscation of the differences between mail in and provisional ballots, with both being in identical envelopes with identical coding, again making it impossible to properly determine if a given ballot is mail-in (and thus simply requires basic signature verification) or provisional (and thus requires more in depth verification and processing).
To this day Maricopa County is deliberately in violation of state law by preventing a forensic audit of the tabulation equipment, has deliberately spoliated evidence, and has threatened poll workers who spoke out about the complete dog's breakfast the election was.