This has been known for decades.
wow i was about to post this in two seconds.
The thing is people might say, post office, who cares? But the post office is then feeding this information to the other agencies in the US govt....
Gee, I won’t be supportive of any additional budget needs of the Postal Service going forward, not that I ever was.
Seems their core mission is of no concern to them. My mail has been late, starting around the time of the 2020 election.
This has been known for decades.