On a frosty January morning in 2019, I found myself listening to oral argument at the Supreme Court of the United States. The cases I witnessed were not destined for headlines – no abortion, free speech, or death penalty cases that day – but I was still fortunate to get a seat. Queues snaked around the building, with tightly controlled ticketed entry and heavily armed security. As a scholar of constitutional courts, I was delighted by the public interest (less so by the guns), even if a Trump shut-down of nearby tourist attractions may have augmented the numbers. But none of us attending that day expected to witness something extraordinary: Clarence Thomas speaking.