It’s not someone you would think of at first thought.
Nixon grimaced at the mention of Watergate. “No. The Lord doesn’t get involved in this type of stuff. Dead Presidents coming to give advice to living Presidents is a program that John Adams started for James Buchanan. Adams was the first one to come back, since it was his idea. Adams figured he could impart some wisdom and thoughtfulness to Buchanan and save the Union. But it didn’t work out. Buchanan is a moron and Adams is an arrogant prick. The two didn’t get on very well. Washington stepped in and saved the day by advising Lincoln. Military advice mostly. Lincoln was grateful. He turned out okay didn’t he?”
Besides, he probably wants to know if Frank Langella got him right.