Just preparing for “Mail-in voting.”
USPS will need maximum delays and incompetence to achieve Democrat goals.
In reality there is no way the USPS could prepare for the actual mail volume that would be involved if the election were handled with 100% mail in ballots as the Democrats would like. There is little to no chance that they could even handle the volume of mail, since they would have tens of millions of extra pieces of first class mail all of which had to arrive by Nov 3rd.