That's not really addressing the point; whether or not the USPS does those things you mentioned doesn't really affect how much or little of a government agency

That's not really addressing the point; whether or not the USPS does those things you mentioned doesn't really affect how much or little of a government agency they are. I would again point you to the "Governance and organization" section on the USPS Wikipedia page.[1] Specifically this paragraph: The USPS is often mistaken for a government-owned corporation (e.g., Amtrak) because it operates much like a business. It is, however, an "establishment of the executive branch of the Government of the United States", (39 U.S.C. § 201) as it is controlled by Presidential appointees and the Postmaster General. As a government agency, it has many special privileges, including sovereign immunity, eminent domain powers, powers to negotiate postal treaties with foreign nations, and an exclusive legal right to deliver first-class and third-class mail. Indeed, in 2004, the U.S. Supreme Court ruled in a unanimous decision that the USPS was not a government-owned corporation, and therefore could not be sued under the Sherman Antitrust Act. Of course the Wikipedia article cites external sources, such as Title 39 of the US Code[2] (which is entirely about the USPS) and a Supreme Court ruling. [1] https://en.wikipedia.org/wiki/United_States_Postal_Service#Governance_and_organization https://en.wikipedia.org/wiki/United_States_Postal_Service#G... [2] https://en.wikipedia.org/wiki/Title_39_of_the_United_States_Code https://en.wikipedia.org/wiki/Title_39_of_the_United_States_...