This seminar will explore problems in the relationship between federal authority and state law. It will have three parts. For the first five weeks, we will consider the various doctrinal principles that lawyers invoke in dealing with problems in federalism. The seminar will then recess for the next five weeks in order to give the seminar members time to prepare their 2-unit papers for presentation to the seminar for the last four weeks that we meet. Prerequisite: Federal Courts (Law 659).