Most important part.
Legislators should legislate.
This is the most fundadmental of his and my "strict" readers of the Constitution..and obviously something that a room full of lawyers and Judges are going to dispute.
Rules of precedent and other "legislation from the bench" are simply the way that one part of the government has found to circumvent the checks and balances written into the Constitution and will generally not meet with the favor of a man who thinks the document needs to be enforced >as written<.
Of course, the exec branch has found there ways around it..as has the legislative branch.
But Congress's job is to legislate. Noone else's.
