The Constitution permits Congress to do amazing stuff to the independent judiciary. It can withhold jurisdiction, or yank jurisdiction that’s been given. It can change the law for pending cases. It can legislate for a “legitimate class of one.” But suppose Smith sues Jones in federal court and Congress enacts a law saying, “In Smith v. Jones [docket number], Smith wins.” Constitutional? An ancient, messy case, U.S. v. Klein (1872), seems to say “no.” After Wednesday’s decision in Bank Markazi v. Peterson, the answer may be “yes.” I’ve written about the case before: The outcome is more depressing than I had apprehended.