[sjm-lbm]

That's the debt ceiling, which is a different weird quirk of how the USG is funded. The relevant page for shutdowns is here: https://en.wikipedia.org/wiki/Government_shutdowns_in_the_Un...

"Funding gaps have led to shutdowns since 1980, when Attorney General Benjamin Civiletti issued a legal opinion requiring it. This opinion was not consistently adhered to through the 1980s, but since 1990 all funding gaps lasting longer than a few hours have led to a shutdown. As of October 2025, 11 funding gaps have led to federal employees being furloughed."

[johncolanduoni]

That an AG just came up with this in the 1980s based on an interpretation of an 1884 law (Antideficiency Act) is fascinating, thanks for sharing this. I always assumed this was an explicit own-goal by Congress like the debt ceiling, but it seems like it’s an unintended side effect.