Again, a regional problem. Postal workers in red areas are not going to commit fraud. Philly? Yeah probably.
Maybe not at the state union management level.
But partisans interfering can be done at any level, anywhere.
Trump/DeSantis GOP sign in the yard?
Ballot gets “lost” in either direction.
Plus many state ballots have “R” or “D” codes visible on the envelope, that can be learned by corrupt postal workers.
“R” goes into the trash.