This has been a terrible year for the press.
As I recently wrote, Donald Trump’s candidacy tested us, and, for the most part, we failed miserably. Our biggest sin: Many mainstream outlets abandoned core values of fairness, balance, verification and proportionality in covering him — even, in some instances, The New York Times.
But we can learn from mistakes and do better in the future. Or, we can deny and double down — and then we usually do even worse.
The latter is what I see happening since Trump was elected president, and that’s the reason for...