No, he could not. That is not just delusional, it is wildly delusional.
They thought he (Trump) was the river when he was really the dam.- Michael Malice
They can persecute Trump. They can imprison Trump. They can kill Trump. It doesn't matter.
If the last 2000 years of Western Civilization is any indication, killing, prosecuting and imprisoning political opponents has the opposite of the intended effect.
She’s delusional to think that Trump would agree to something like this, but even if he was willing, it wouldn’t work, because they are coming after him in so many jurisdictions, both federal and state. A deal made with Jack Smith would not bind Bragg or the prosecutor in Atlanta.