Hard to tell at this point for sure. I’m certain that there was plenty of coordination with domestic PR groups as well on all of this, but the 2016 online influence campaign was something completely new and different for the GOP, and we all know that Trump is way too fucking stupid to come up with anything new and different on his own.
That means that they were getting their playbook from someone with a lot more media manipulation experience than themselves, and the fingerprints (both in terms of style and where the money was flowing from into the GOP pockets) were distinctly Russian.
