Sorry that is just not true. The Democrat machine has a list of voters, dead and alive. When the machines are not watched, the poll workers quickly vote for these people as if they had come in. We have seen cases where someone is told that they already voted when they didn't. We have testimony of a voter being given two ballots instead of one. And more automatic scanners can be made to scan the same mail in ballots two or three times. The criminals are far more ingenious than those who try to enforce the laws. And, if you are caught, there is no significant penalty.