Oh Marty, a show trial is one where the Defendant isn't ALLOWED to testify, or present a defense, not one where the Defendant does nothing to refute the evidence other than to call the witnesses "liars", and completely ignores the documentary evidence which proves they're not lying.
Trump hasn't presented a defense because he's guilty and he knows it. His only hope to stay out of jail is convince the gullible that Trump is the only person in this whole process who ISN'T lying, and let you fools elect him President again. I mean you elected him when he was in the middle of a fraud trial, the first time.