https://www.cjr.org/analysis/breitbart-media-trump-harvard-study.php
Rebuilding a basis on which Americans can form a shared belief about what is going on is a precondition of democracy, and the most important task confronting the press going forward. Our data strongly suggest that most Americans, including those who access news through social networks, continue to pay attention to traditional media, following professional journalistic practices, and cross-reference what they read on partisan sites with what they read on mass media sites.
To accomplish this, traditional media needs to reorient, not by developing better viral content and clickbait to compete in the social media environment, but by recognizing that it is operating in a propaganda and disinformation-rich environment. This, not Macedonian teenagers or Facebook, is the real challenge of the coming years. Rising to this challenge could usher in a new golden age for the Fourth Estate.