I Completed Hillsdale College's Course on Congress: How it Worked and Why It Doesn't
In this course, I studied how the delegation practices of legislators resulted in the growth of the administrative state.
To summarize: If legislators actually made rules and regulations as the original intent of the role of Congress, they’d have to face people who are unhappy with those rules and regulations. Since legislators have given their authority to departments and bureaucrats, legislators run not on legislation but on promises to provide more services and cut red tape.