Structure of the United States Congress

The structure of the United States Congress with a separate House and Senate (respectively the lower and upper houses of the bicameral legislature) is complex with numerous committees handling a disparate array of topics presided over by elected officers. Some committees manage other committees. Congresspersons have various privileges to help the presidents serve the national interest and are paid a salary and have pensions. Congress formed a Library of Congress to help assist investigations and developed a Government Accountability Office to help it analyze complex and varied federal expenditures.