Women and slaves, Aristotle believed, cannot be tragic heroes. Two millennia on, a tragic heroine is on Broadway, fashioned out of the living flesh and blood legend that is Hillary Rodham Clinton. Hillary and Clinton bills itself as kind of a comedy. But given the way things turned out on the world stage, a middle-aged, flawed heroine in fleece and slippers shaking a metaphorical fist at fate, is pure tragedy. Playwright Lucas Hnath's character is facing a very modern challenge. She is a woman trapped in a death spiral with her own meme and her spouse. Hillary’s political career was...