On Jan. 21, 2017, one day into Donald Trump’s tenure as president of the U.S., and roughly five decades into Gloria Steinem’s tenure as its most famous feminist, Steinem arrived on the National Mall to address the Women’s March on Washington—a mass gathering in rebuke of both a president who had bragged about groping women, and the society that had elected him anyway. At age 82, Steinem looked as she had always looked, only older: tinted aviator glasses, leather jacket, long hair parted down the middle with two lightened streaks at the front. And she sounded like she had always…