How Corporate Lobbyists Got That Way

Best summary I've seen.

The evolution of business lobbying from a sparse reactive force into a ubiquitous and increasingly proactive one is among the most important transformations in American politics over the last 40 years.  Probing the history of this transformation reveals that there is no “normal” level of business lobbying in American democracy. Rather, business lobbying has built itself up over time, and the self-reinforcing quality of corporate lobbying has increasingly come to overwhelm every other potentially countervailing force. It has also fundamentally changed how corporations interact with government—rather than trying to keep government out of its business (as they did for a long time), companies are now increasingly bringing government in as a partner, looking to see what the country can do for them.