In each of the two parts of this publication there is a table which lists information which various Presidents have refused to turn over to Congress. A copy of the table in part 1 follows. Choose a topic from the list above and research it via the Web and via resources within the library. Write a 3-5 page paper describing the circumstances under which executive privilege was claimed. This database indexes a wide spectrum of journals.
Some articles are in fulltext.
This site provides many good links to various Centers which study political science issues. All of the public papers of the presidents from Washington through Bush are accessible on CD-ROM through the Libraries' Information System. The call numbers for these publications change with each President. Consult a librarian for assistance.