I have independent sources that have long confirmed that this is absolutely spot on. This is something neither Russia nor China could do because they lack the infrastructure that the CIA/NSA has established with taps directly into the trunk lines for communications. Moreover, that was also confirmed by the documents released by Snowden.
It is not the Chinese nor the Russians who they will probably blame, but the homegrown swamp. The real question remains, can they pull this off on a grand scale this time? What they hate about Trump is the same thing they hated about Kennedy – reduce American presence in absurd wars. It was Kennedy who set off a gold panic in 1960 during the debate by saying to support the dollar it would be easy by closing offshore military bases.