In its next Obamacare-related decision, the Supreme Court will decide whether employers in states that chose not to establish their own Obamacare exchanges can be forced to pay penalties for not offering insurance the government deems acceptable.

The case is somewhat complicated and based on textual questions and legislative history. But if the court rules that the phrase “established by the state” means what it looks like it means, this will bring a small dose of chaos to up to 37 states that now rely on the federal exchange — the infamous healthcare.gov.

A majority of those who bought insurance from the federal exchanges in those states would no longer be eligible for the subsidies that have made the high price of Obamacare insurance less unpalatable for Americans of modest means. And the employer fines that are currently triggered when employees who aren’t offered qualifying health insurance obtain subsidies to purchase it on the exchange would go away.