Nearly every day, there is confirmation of Keith's Law, which says that authoritativeness is inversely proportional to partisanship. This essay is long, but worth your time. Key paragraph:
Several long-term developments have weakened the press institutionally. The prevalence of adversarial reporting (especially in the form of crude gotcha journalism as opposed to substantive investigation) diminished reporters in the public eye. To many citizens, regardless of ideology, the typical Washington journalist now seemed preening, self-important, and unremittingly negative. The explosion of armchair television punditry, at the expense of reporting, had a similar effect. (Boldface added.)
Keep it up, journalists, and you'll have no audience except your fellow leftists.