Justice Ruth Bader Ginsburg is the most outspoken member of the Supreme Court, sometimes to her regret. Last year, she issued a statement saying that her criticisms of Donald J. Trump during the presidential campaign had been ill advised. “In the future,” she said, “I will be more circumspect.” She...

On weeknights, personal trainer Bryant Johnson drives through Capitol Hill to the U.S. Supreme Court and does some heavy lifting with Justice Ruth Bader Ginsburg. Johnson, a U.S. military reservist, has trained Ginsburg for more than 10 years, and the two may seem like an odd...