… is from page 417 of my late colleague Gordon Tullock’s 1997 paper “Thoughts about Representative Government” as this essay is reprinted in volume 4 (The Economics of Politics) of Tullock’s Selected Works (Charles K. Rowley, ed., 2005):
In general, the bills themselves are written by the civil service, by congressional assistants, or, in many cases, by special interests who offer “advice” sometimes in the form of completely worked out pieces of legislation.