"At 11:34 PM on April 9, 2021, the Supreme Court issued an emergency ruling. California governor Gavin Newsom's bid to enact enhanced COVID restrictions was overturned in a sweeping redefinition of existing law. The shadowy circumstances of this ruling-an unsigned decision made in just a few pages, without a full briefing, and in the middle of the night-are not typical of the Supreme Court. But, as legal scholar and expert Stephen Vladeck shows, they're...