When the U.S. Postal Service announced last week that it was ending Saturday mail delivery, the general public response was to shrug. Well, yeah, people thought: The Internet is usurping the mailman’s role. Cutting back delivery is just a sign of the times.

But the announcement has provoked outrage among Democratic lawmakers and the Postal Service employee unions. They’re pushing a counternarrative: Everything is fine with the Postal Service. The real problem is that Congress has — perhaps intentionally — screwed up its finances.