Earlier quoted context omitted.
Then why not nationalize it?
It's not like the nationalized companies do that great. The USPS is in perpetual crisis and eventually the Federal Government is going to be on the hook for 10s of billions in pensions.
With that being said, the situation of the USPS is not simple - it's been suffering political interference from elected officials for literally centuries. A very good example of why giving too much oversight power to elected officials and having too many political appointees is very dangerous.