I just want to make a small correction on the timelines. The Kogan project began after Steve Bannon took over the company, but it was authorized by Steve Bannon. So in terms of the timeline, the work that Aleksandr Kogan engaged in happened after Steve Bannon and Robert Mercer had acquired the IP in SCL, set up Cambridge Analytica and then deposited the funds to pay for it.
On May 29th, 2018. See this statement in context.