Sure sounds like the Demrats are trying to "get" Trump by demanding he prove a negative. It's the same tactic they tried with the Russian collusion sham! They never seem to remember that over 62 MILLION voters put Trump in power. It will not go well for them if they presume we would desert him so easily.
Actually, the court accepted PDJT’s argument that allowing discovery to go forward before the issue of separation of powers is decided is violation of his right to due process. Once the discovery starts, and the records are turned over to the congress committees, there is no way to undo it. The records will be copied, leaked to the MSM and misrepresented.