The ruling by a federal district court judge that Vice President Pence is entitled to the protection of the Speech or Debate Clause is that rare thing; a case of first impression that brings into focus a slab of our constitutional bedrock. It is recognition from the bench that the veep is a creature of the Legislative branch. It is not often that we gain a better bead on the Framers’ designs. Mr. Pence would be doing America and future vice presidents a service to press his case.