You really blew it on that one ~ it’s members of the US Senate who demand the small unneeded rural post offices be kept open. True enough the postmasters have an association which looks remarkably like a union, but it’s not really a union.
Really ??? You seem passed at me for some reason. I’ve got two friends who are USPS. They are members of my lodge. I don’t have contact with them until next week but, I will ask them.
It’s my understanding they do belong to a union. It’s called something or other