AMB MATLOCK CONNECTION?
I don't think we ever came up with a good answer on this but I just found that he is on the board of American Committee For East-West Accord (ACEW). I think we need to dig.
sauce:
https:// eastwestaccord.com/board-of-directors/
Article that led me to it:
https:// www.splcenter.org/hatewatch/2018/02/08/far-right-influence-pro-kremlin-media-and-political-networks