Visiting Professor

Paul A. Diller

Visiting Professor

Legal Research Center 221
Legal Assistant:


Paul Diller visits at Lewis & Clark in spring 2022 where he teaches Property and a seminar on the legal implications of COVID-19. Diller holds a tenured appointment as a professor of law at Willamette University in Salem, Oregon. His professional work focuses on state and local government law, state constitutional law, and public health law. He has written extensively about state preemption of local authority, as well as the structures underlying that dynamic, such as partisan gerrymandering. Diller was a participant in the National League of Cities’ Home Rule for the 21st Century Project in 2019-20. In September 2017, Diller authored an amicus brief on behalf of several municipal organizations and local government law professors in Gill v. Whitford, which challenged gerrymandering of state legislative districts. More recently, Diller has examined the constitutional and other legal issues that have arisen in states’ and cities’ response to the COVID-19 pandemic, particularly in their use of emergency authority. He is currently working on a paper that surveys and analyzes the use of local emergency authority to mandate vaccine passports. Diller graduated from the University of Pennsylvania and the University of Michigan Law School, both magna cum laude. After law school, he clerked for Chief Judge Edward R. Becker of the U.S. Court of Appeals for the Third Circuit. He was a trial attorney in the Civil Division of the U.S. Department of Justice in Washington, D.C., where he litigated constitutional, administrative, and Freedom-of-Information-Act cases, among others. Diller was a visiting professor at the University of Michigan Law School in 2008 and taught at the East China University of Political Science and Law in Shanghai in 2013.

Specialty Areas and Course Descriptions

Law 014 - Property Law

Law 241 - Legal Responses to Covid-19


Toward Fairer Representation in State Legislatures, 33 Stan. L. & Pol’y Rev. 135 (2022).

Municipal Vaccine Passport Regimes in the United States: A European Import Spreads Widely, 45 Fordham Int’l L.J. 639 (2022).

The Political Process of Preemption, 54 U. Rich. L. Rev. 343 (2020).