I mean, if they've got his assistant's laptop and devices, who apparently recorded all of his conversations with reporters, and also her testimony, it's not like anything Trump argues in denial is going to stick.
I still wonder about the use/intent of leaking the recording now, instead of during the trial. Yes, I'm sure there is much, much more than this in the pockets of the DoJ, but I really can't see this floating out there now as a benefit for the prosecution. If more leaks are to come, I suspect the Trump judge is going to push an argument that there is no chance of a fair trial anywhere, and will try to dismiss.
I think that, as with Alito/Thomas and Hodges, this leak came from Team Treason in order to subvert justice.