The US Constitution requires the congress to, “establish post offices and post roads” to foster communication between the country's citizens. Today, “post roads" are not deer paths ridden by horse mounted mail carriers but the tubes of the internet. Post offices, while still in constant use, could be for more important as ISP data centers.
The USPS still owns offices in remote locations and multiple offices in urban areas which, if used as data centers, could help provide high speed internet to every American. This also says nothing of the increased privacy Americans will experience after federal mail laws are applied to citizens' inboxes and other internet communications.
This pivot would not squash competition, as many communities are now under effective monopolies of Telecom companies.



