people selectively listen to only those who make them feel secure in their positions, which breeds insular thinking and so-called alternative facts. President Donald Trump famously said, “My primary consultant is myself.” A prolific tweeter, Trump represents a transformation in the body politic: people on the right and the left can create their own realities online and drive their own unchallenged narratives—maligning, blocking, or deleting content and commentary they don’t like.
