Earlier this month, when ProPublica revealed that Clarence Thomas had received a slew of undisclosed free trips from billionaire Harlan Crow, there echoed across America a scandalized, unified response: Sorry, Harlan who??? Here was a man who had secretly lavished the trappings of luxury on one the most powerful people in the country for more than 20 years. Crow had bought and renovated the home currently inhabited by Thomas’ mother, such that he actively serves as her landlord. He had vacationed with Thomas at a men-only campground in California, and at Crow’s bizarre-looking property in upstate New York, and on...