What group thought this legislation was needed and why? What is the social history of the problem addressed by the law?
Law review articles are a good place to start your legal research. These articles usually include references to primary legal and other relevant sources. Starting with secondary sources such as these can give you background and citations to help you locate court cases, legislation and regulations.
Where can you find law reviews?
Who introduced the bill and what was its original form? What committee was assigned the bill, who was on the committee, and what did they do about the bill?
What was the debate on the floor when the bill came back to the House or Senate?
What, if anything did the President say about the bill when it came to his desk?
Where is the final version of the bill published?