Hmmmm.
There should be more of these coming. 
In particular, IIRC, both Kushiner and Trump's son had requested an encrypted communication with the Russians. As such, the Russians would NOT have answered verbally, but would have given them special phones on the side and made certain that NSA/CIA did not know about this. 

My big fear is that Pence will got off scot-free while trump will only be charged with obstruction of Justice, even though both are traitors.