same thing as happened in Sackett last term: Alito decided on a (scientifically wrong) definition of "wetlands" that *he* thought made sense and added it into the law because he thinks government has too much power to keep water from getting contaminated
(i will never not be mad about Sackett)
it's hard to see how "arguing the definition of a machinegun" fits into the idea of judging the constitutionality of laws, even if that were a power they have (they shouldn't). this is just them acting as a political body and passing a law based on their own political beliefs.
