Once you’ve said “I’m in,” it makes no difference that the meeting was a bust, that the intermediary brought no such goods. What matters is what Donald Jr. thought going into the meeting, as well as Jared Kushner and then-campaign manager Paul Manafort, who were forwarded the correspondence, invited to the meeting, and attended.

“It was literally just a wasted 20 minutes, which was a shame,” Donald Jr. told Sean Hannity. A shame? On the contrary, a stroke of luck. Had the lawyer real stuff to deliver, Donald Jr. and the others would be in far deeper legal trouble. It turned out to be incompetent collusion, amateur collusion, comically failed collusion. That does not erase the fact that three top Trump campaign officials were ready to play.

It may turn out that they did later collaborate more fruitfully. We don’t know. But even if nothing else is found, the evidence is damning.