By Masha Gessen
The Mueller investigation, as a media story and a conversation topic, has been irresistible largely because it promised a way to avoid thinking of Trump as an American development. The Russian-collusion story dangled the carrot of discovering that Trump was entirely foreign to U.S. politics, a puppet of a hostile power. It also held the appeal of a secret answer to our catastrophe, one that would make the unimaginable suddenly explicable.