The constitution says and does very little. It doesn't require the establishment of a postal service. It does, however, grant congress the ability to create a post office - which is a very significant difference.
For example, congress also has the ability to declare war and we're all better off that this power is not invoked on a regular basis. If the constitution required that congress required the congress to act upon the powers given unto it, wouldn't we be in a constant state of war?
How the heck did an entire party become a bunch of fake news?
He did an evening at the beginning of COVID, the MSM just called him a liar. I don't think anything he does will help anything at all. The left have their echo chambers and they no longer listen to logic or reason. Mentioning HCQ will get you banned on Twitter if you're GOP, but democrats are going around saying Trump is literally stealing mailtrucks with impunity. The democrats have wanted stupid sheep voters in the suburbs for decades. Now they have them.
Just btw, I can't find the article (because so much has happened in the past few years, and especially last few weeks) but the USPS is going to introduce new letter sorting machines that use half the labor as the ones they're phasing out and removing. I don't remember the exact wording but its something like the new machines require 1/2 clerks per machine. The folks over at r/usps were flipping out because now instead of one clerk per machine, the new machines let a single clerk run multiple machines at the same time.
Some of the machines private sector mail companies use (to get presorted discounts at the postal service) are pretty incredible. Letters have to get sorted multiple times. Figure at a minimum letters get sorted into a carrier route and then get sorted based on delivery point. Some of the newer machines will handle everything automatically. They can move the mail from the bins to get its second pass, rather than having a clerk do the work. They're pretty neat.