I've just read the report that this tweet is based on.
it really wasn't a forensic investigation.
There was an issue in this county that got picked up and resolved, this investigation falsely conflates this issue with fraud, something denied by Republicans that control the county.
Also, Antrim county is republican county that Trump won and also crucially a county where no claims of voter fraud have been made in court.
Antrim county uses paper ballots that could of been counted to verify that they matched the machine count, but this wasn't requested, because...?