<P> In the 1970s and 1990s, "staff numbers generally held level and increases were held down . After 1995, staff numbers actually decreased slightly ." </P> <P> C - SPAN classifies staff members into five categories: </P> <Ul> <Li> Personal staff, who work for individual members of Congress </Li> <Li> Committee staff, who serve either the majority or minority on congressional committees </Li> <Li> Leadership staff, who work for the speaker, majority and minority leaders, and majority and minority whips in the House of Representatives, and the majority and minority leaders and assistant majority and minority leaders (whips) in the Senate </Li> <Li> Institutional staff, including majority or minority party floor staff and non-partisan staff such as the Capitol Police, Architect of the Capitol (facilities and maintenance employees), and legislative clerks . </Li> <Li> Support agency staff, non-partisan employees of the Congressional Research Service (CRS), Congressional Budget Office (CBO), and Government Accountability Office (GAO). </Li> </Ul> <Li> Personal staff, who work for individual members of Congress </Li>

What are the duties of each type of congressional staff
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