Such contacts are usual and customary.  The previous administration documented these communications PRIOR to anyone knowing anything about the DNC hacking so as to use it in their operation to destroy Trump in 2020 when the shoe-in HRC would have to confront the populist and his growing movement in her re-election bid.  In the world's first case of Espionage by Appointment, Team Trump conspired with the Russians to hack the DNC and release emails showing Team Hillary and the DNC screwed poor old Bernie (which everyone knew anyway), then Team Trump shortly thereafter exchanged emails with Russians, invited them to their offices in broad daylight past witnesses and cameras when Clinton dirt was dangled at a point in time where logic would suggest  they wouldn't order a vodka from the bar or use Russian dressing on their salads.  Right.