“This is obviously very high level and sensitive information but is part of Russia and its government’s support for Mr. Trump –helped along by Aras and Emin”

You can’t blink that away.  Seems pretty straight forward too.  Regardless of what he did get out of that meeting, this email chain makes it clear what his expectations going in were..and that the Russian government wanted to help his father’s campaign. Collusion defined is illegal cooperation.  Seems to fit.