demand to cease and desist and retract to couch..
https://www.dailydot.com/layer8/donna-brazile-matt-couch-seth-rich/
It is widely accepted the emails were given to WikiLeaks by Russian operatives.
Widely accepted! That's the ticket.
My speculation is that Couch and witnesses will NOT roll over on this one. They might shut up temporarily but maybe not even that. And, I think the cell phone data would be conclusive. Certainly the NSA has that.