In 2000, one precinct in St. Louis had a voter turnout of 300%. It was an organised fraud campaign where hundreds of Democrat operatives went to to one polling place after another.

Since they were not registered at more than one place, they were giveg "provisional ballots" and voted.

When the doors closed, the precinct workers simply threw the "provisional ballots" on the same counting machines as the real ones.

BTW, two or three Democrat organisers of this fraud were convicted and sentenced to federal prison, but I believe none actually did any time.