Congress is not alone; administrative agencies also bear the brunt of the justices’ disdain. In a series of recent cases that, for example, struck down the E.P.A.’s clean power plan for addressing climate change, the Republican-appointed justices have invented the so-called major questions doctrine. If they consider an issue major — and they have not told us what makes a question major beyond “vast economic and political significance” or “earnest and profound debate across the country” — then they will not allow an agency to regulate in that manner unless Congress has clearly stated that it may.

To use an analogy: If a majority of justices determine that eating an ice cream cone is a major question, then it is not enough that Congress has empowered the agency to “eat any dessert it chooses.” It must legislate that the agency can “eat any dessert it chooses, including ice cream cones.” But Congress has no way of knowing whether eating an ice cream cone is major until it sees what a majority of justices have to say about it.

In justifying this doctrine, the justices have raised the specter of out-of-control bureaucrats intruding on the liberty of citizens, undermining legal stability, serving only special interests and invading the domain of the states.

You might think that this doctrine is meant to protect congressional power, except that it dictates to Congress how it must legislate, despite the fact that Congress has no way of knowing in advance what issues will be considered major. Moreover, as the legal scholar Beau Baumann has noted, Justice Neil Gorsuch and his colleagues have justified the doctrine on the grounds that Congress is too eager to delegate to agencies in order to avoid political responsibility, so the courts must keep Congress in line. In other words, the justices are paternalistically claiming to protect Congress from itself.

In all of these areas and in plenty more, the justices have seized for themselves an active role in governance. But perhaps even more consequentially, in doing so, they have repeatedly described other political institutions in overwhelmingly derogatory terms while either describing the judiciary in flattering terms or not describing it at all — denying its status as an institution and positioning it as simply a conduit of disembodied law.