Was there a coup? That question, when asked in the context of American politics, invites ridicule from respectable quarters. Yet when the subject turns to foreign regimes, that same question is treated with analytic seriousness. Political scientists pore over cases from Georgia to Ukraine, from Venezuela to Egypt, cataloguing the hallmarks of so-called "color revolutions", soft regime-change efforts executed through legal, media, and civic levers, rather than military ones. Oddly, however, the moment one notices similar tactics deployed on American soil, the conversation ends. That silence deserves scrutiny. For there is a credible case that the 2020 effort to remove...