As I have been saying for a while now, the “mainstream media” is a bubble which has receded toward the coasts. Twitter is a bubble within the coastal bubble.
The 20th century is dead. The rise of the mass media created a national culture that is now balkanizing and melting away. No one trusts the professional “journalist” anymore. New York has ceased to be America’s dominant metropole and no longer sets the tone of American culture. Gatekeepers have lost control of the national conversation. Regional cultures are strengthening.
The big picture: the 20th century increasingly looks like an aberration or disruption as we climb down the other side of the curve. The partisan press has returned. High turnout elections have returned. White evangelicals are reverting to their old ways.