Scalia Dissents.

As was perhaps predictable, instead of producing a clarification of the Delphic residual clause, today’s opinion produces a fourth ad hoc judgment that will sow further confusion. Insanity, it has been said, is doing the samething over and over again, but expecting different results.Four times is enough. We should admit that ACCA’s residual provision is a drafting failure and declare it void for vagueness.

Sykes v. United States.