Here's Donald Trump Jr.'s complete, same-day response:

Thanks Rob I appreciate that. I am on the road at the moment but perhaps I just speak to Emin first. Seems we have some time and if it’s what you say I love it especially later in the summer. Could we do a call first thing next week when I am back?

He's apparently not the slightest bit surprised by Goldstone's claim that the information is "part of" a Russian effort to "support" Trump. He doesn't even acknowledge the statement, but instead offers a thanks, says I love it and is already apparently musing about its use later in the summer.

That's an odd, odd reaction to the news that a foreign nation has just inserted itself into your presidential campaign. But Junior doesn't appear to find it odd at all.

The "Russia and its government's support for Mr. Trump" assertion is both presented as already-known information, and is accepted as that. The two sides instead get down to discussing how to hand over the information to be handed over.

This isn't just a revelation of some one-time collusion between Russian government intelligence efforts and the Trump presidential campaign. This seems to be a revelation that as of the June meeting, a relationship between the Trump campaign and the Russian government had already been established.

Further evidence for that interpretation, of course, is that delicate little word that many bystanders are gravitating toward: part. Goldstone doesn't say that this information is the total of the Russian government's support for Trump. He says that this information is "part of" the Russian government's support for Trump. What other "parts" were there?

There's been talk of Russian financial support for campaign efforts here and, of course, a host of Russia-sponsored "fake news" sites providing pro-Trump slants on any story you might think of, but the most obvious known "part" of Russian government support for Trump, of course, is the Russian intelligence operations against Trump's opponents. Leaks of the information obtained by state-sponsored Russian operatives, in fact, began just one week after the Trump Tower meeting.

Donald Trump Jr.'s story is that the June 2016 meeting came out of nowhere, nothing substantive was discussed other than facilitating more Russian "adoption," which he found uninteresting, and nothing more came of it. There's very strong evidence that all three of those parts are untrue. The emails released show that Trump Jr. was unsurprised, in June, to hear that the Russian government was taking specific actions to assist the Trump campaign; the meeting was immediately followed by the release of documents previously stolen from the Democratic National Committee by Russian government-sponsored hackers.

This version of Trump's story doesn't hold up any better under scrutiny than the last three. We need to know why the Trump campaign was so unsurprised by the news that the Russian government would now be assisting them.