The true First Lady is "An Average," also known as "Her Who Never Was and Who Never Is," "a kind of vague, cold, intellectual, unsubstantial, lonely, Terrible Angel called the People."  All there is to her is "a kind of light in Her eyes at times."  The relationship is unsatisfying to both the President and the First Lady, much like trying to reduce the Aurora Borealis to a simple mathematical equation.  All this we learn in The Ghost in the White House: Some Suggestions as to How a Hundred Million People (Who are Supposed in a Vague, Helpless Way to Haunt the White House) Can Make Themselves Felt with a President, How They Can Back Him Up, Express Themselves to Him, be Expressed by Him, and Get What They Want by Gerald Stanley Lee, 1920.