A disciple of Gandhi, a mentor to Martin Luther King Jr., and chief organizer of the 1963 March on Washington, Rustin dared to live as an openly gay man during the fiercely homophobic 1940s, 1950s, and 1960s. In 2013, Rustin received a posthumous Presidential Medal of Freedom – America’s highest civilian honor – from Barack Obama, who described Rustin as “an unyielding activist...