Today’s federal government has strayed far from the design of the Founders, often for the worse. But not every deviation from the original concept can or should be fixed by the courts. That’s the message of the Supreme Court’s 7–2 decision this morning in Consumer Financial Protection Bureau v. Community Financial Services Association of America. The case provoked a spirited debate between Justices Clarence Thomas and Samuel Alito about the Court’s authority to save Congress from its...