It was just three days and a lifetime ago that I wrote a column about Donald Trump’s unfitness for the presidency that affected a world-weary tone. Nothing about this White House’s chaos was surprising given the style of Trump’s campaign, I argued. None of the breaking scandals necessarily suggested high crimes as opposed to simple omni-incompetence. And given that Republicans made their peace with Trump’s unfitness many months ago, it seemed pointless to expect their leaders to move against him unless something far, far worse came out.

As I said, three days and a lifetime. If the G.O.P.’s surrender to candidate Trump made exhortations about Republican politicians’ duty to their country seem like so much pointless verbiage, now President Trump has managed to make exhortation seem unavoidable again.

He has done so, if several days’ worth of entirely credible leaks and revelations are to be believed, by demonstrating in a particularly egregious fashion why the question of “fitness” matters in the first place.