“It’s not the people who vote that count. It’s the people who count the votes.” is a quote attributed to Joseph Stalin. The American Postal Workers Union and the National Association of Letter Carriers both endorsed Joe Biden for president.
That’s enough reason to disallow universal voting by mail. Many postal workers will certainly receive secret orders to prevent the delivery of ballots mailed from heavy Republican districts. With ballots by mail, the postal system will become another means for voter suppression.