Most reporters and editors are liberal — a now dated Pew Research Center poll found that liberals outnumber conservatives in the media by some 5 to 1, and that comports with my own anecdotal experience at National Public Radio.
When you are liberal, and everyone else around you is as well, it is easy to fall into group think on what stories are important, what sources are legitimate and what the narrative of the day will be.
Newsroom climate matters. And picking stories is at the heart of it. Liberal bias keeps stories alive long after expiration date. Even when accurately and fairly reported — though sometimes coverage itself leans left or falls on its face in that direction. As in choice of sources for reactions, for instance.
Blithe Spirit 