The Congressional Record and its predecessors are the official proceedings of the U.S. Congress. Use the CR to determine what happened on the floor of the U.S. House of Representatives and the U.S. Senate.
In the process of making laws, the U.S. Congress publishes hearings, prints, and reports related to the legislative process. These resources include expert testimony and debates on important topics in history and public policy as well as almost every aspect of American life.
The Congressional Research Service analyzes public policy topics for the U.S. Congress. These reports are excellent resources for understanding the basics of almost anything for which Congress has the power to legislate.