The US Postal Service has existed for over 200 years, and is a vitally important part of America. It reaches into every last nook and cranny in the USA, delivering mail and packages through all kinds of weather. But short term political calculations seem to have driven the Trump Administration to destroy the US Postal Service. According to the mass media this was undertaken as an election tactic, to prevent the voters from mailing in ballots. But it's been a long time dream in so-called-Conservative circles to eliminate the USPS so that entrepreneurs can can do the job more efficiently, as they claim.
It's true that Pres. Trump has repeatedly attacked the US Postal Service, and the USPS is removing mailboxes and sorting machines. What's uncertain whether these moves are solely focused on the 2020 election, or whether it is to fulfill a long-standing Conservative/Corporatist goal of replacing the USPS with for-profit commercial service providers.