After the Supreme Court overturned the Trump administration’s bump stock ban last week, critics complained that the justices had interpreted the Second Amendment in a way that rules out perfectly reasonable gun regulations. That was an odd complaint, because the case did not involve the Second Amendment. The Court’s decision upheld an important principle that goes far beyond gun control: Federal bureaucrats do not have the authority to invent new crimes by rewriting the law. All Americans, regardless of how they feel about gun rights, have a stake in that principle, which is crucial to the rul…