My parents used to own a small house with a large backyard, in which my mother cultivated a beautiful garden. At some point, however — I don’t remember why — my father looked at the official deed defining their property, and received a shock. According to the text, the Krugman lot wasn’t a rough rectangle; it was a triangle more than a hundred feet long but only around a yard wide at the base.

On examination, it was clear what had happened: Whoever wrote down the lot’s description had somehow skipped a clause. And of course the town clerk fixed the language. After all, it would have been ludicrous and cruel to take away most of my parents’ property on the basis of sloppy drafting, when the drafters’ intention was perfectly clear.

But it now appears possible that the Supreme Court may be willing to deprive millions of Americans of health care on the basis of an equally obvious typo. And if you think this possibility has anything to do with serious legal reasoning, as opposed to rabid partisanship, I have a long, skinny, unbuildable piece of land you might want to buy.

Last week the court shocked many observers by saying that it was willing to hear a case claiming that the wording of one clause in the Affordable Care Act sets drastic limits on subsidies to Americans who buy health insurance. It’s a ridiculous claim; not only is it clear from everything else in the act that there was no intention to set such limits, you can ask the people who drafted the law what they intended, and it wasn’t what the plaintiffs claim. But the fact that the suit is ridiculous is no guarantee that it won’t succeed — not in an environment in which all too many Republican judges have made it clear that partisan loyalty trumps respect for the rule of law.