As for the national secrets... he might know a few from talking to his advisors, but do you think he has read, and comprehended a single intelligence document in his 4 years in office?

Its been repeatedly reported from multiple sources that briefings have to be dumbed down and presented in comic-book style- cool and pretty pictures are all that can penetrate his skull...

But he did mention to Woodward the existence of a new ultra-secret nuclear weapon, I guess there are a few governments that might agree to provide him a luxury retirement for whatever vague details he might be able to tell them...

Hell, with Trump, they might not need to even give him anything more than flattery and a chance for him to 'impress' them with what he knows...

If he did something like that, it would not shock his supporters- the majority of the republican party... they know what he is... they would defend him for doing it, especially if it created another catastrophe for Biden to clean up.