So far that hasn’t happened.
You are assuming the "government" wants honest elections.
All mail ballots in Clark County were counted first by running them through a digital scanner. If the scanner cannot read the ballot or determine the voter’s intent, the ballot is sent to an adjudication or duplication team, both of which are overseen by a bipartisan election board. County elections officials have said about 70 percent of ballots are sent to be reviewed by elections officials.