Congressional documents, published by either the House or Senate as a ―committee of the whole,‖ cover a wide variety of topics. Documents may include special reports of executive branches, congressional investi-gations, veto messages, reports of committee activities, or committee-sponsored special studies. This vague class of materials usually does not shed important light on legislative intent but rather functions as a major historical record of Congress. These documents are designated H.Doc. or S.Doc., and assigned a Congress number and document number.