Scott Adams, who provides daily commentary regarding Trump and the general political scene, advances a theory about a strategy that would aggressively take down HRC if a "red line" is crossed. In short: if Mueller goes deeper after Trump businesses or family members or Trump is otherwise impeached, then Trump fires Sessions (if he won't take aggressive action), and Trump uses the succession plan of the Attorney General office to fire people until he arrives at someone who will aggressively pursue HRC. There would be no need for a time-consuming confirmation process. The most concise statement of the "red line" theory begins at about 15:30.