@georgetakei
One take on this that I read was that he could have it both ways by spilling all, but decrying the injustice of being forced to testify.
"The devil made me do it" plays well with religious cultists, and whining about the rule of law plays well with the twice-impeached racist misogynist fascist idiot mobster's cultists.
If his presidential fantasies lead him to talk with a "the court made me do it" tone, that works.
And if his courtroom demeanor is that of a reluctantly cooperating witness, rather than a disgruntled former minion, it's likely to play better for the jury.