It's not that simple.

A ballot that came in the mail after the election / without signature is simply chucked in the pile of valid ballots. There's no way to distinguish it.

Also what they could have done is simply take real unfilled ballots and filled them up

There's no way to distinguish fraudulent ballots from legitimate ones, because they are identical.

It's not that simple.

A ballot that came in the mail after the election / without signature is simply cucked in the pile of valid ballots. There's no way to distinguish it.

Also what they could have done is simply take real unfilled ballots and filled them up

There's no way to distinguish fraudulent ballots from legitimate ones, because they are identical.