He can not apply any of them to Congress or their staffs.
That is part of separation of powers. the President runs the Executive branch, Congress runs the legislative.
It also will not SCOTUS or their staffs as they are another branch of government.
Did you expect him to become a dictator or just sleep through fourth grade history?
The president can't make any changes to unions or pensions or benefits or firing process. All those will take Congress. and I highly doubt they will do anything that will limit their benefits or their salaries or their pensions, or those of their staffs.