Those who think President Donald J. Trump and Elon Musk will make up, or staged their feud for effect, do not understand how narcissism works.
Read MoreThomas Lawrence’s “John Philip Kemble as Coriolanus” (1799, oil on canvas). Guildhall Art Gallery. William Shakespeare’s “Coriolanus,” about rivalries and shifting alliances, offers some insights and warnings for the Trump-Musk feud.