I am working on a second book American Freedom: Slavery, Immigration and Movement about the effect of slavery on U.S. immigration and constitutional law.

My first book, The Immigration Battle in American Courts (Cambridge University Press 2010, paperback 2014) examines the role of the federal judiciary in immigration law.  Congress and the President may pass immigration laws, but it is up to the federal courts to interpret and apply the laws, thereby making policy.  It is also the evolutionary story of how the U.S. Courts of Appeals, the second most powerful courts in the land grew up alongside the Supreme Court. 

I have guest blogged at the Cambridge University Press blog, the Miller Center and the University of Virginia  blog and The Monkey Cage at the Washington Post, most recently.

Selected publications

"The Historical Amnesia of Contemporary Immigration Federalism Debates." 47(3) (July2015) Polity 302-19.  

"Lunatics, Idiots, Paupers, and Negro Seamen -- Immigration Federalism and the Early American Republic."Studies in American Political Development 28 (October 2014): 107-28. 

“Federal Policy Coordination Over Decentralized Policy” in Debates on U.S. Immigration (eds. Judith Gans, Elaine Repogle, Daniel Tichenor), SAGE publications, Thousand Oaks, CA.  (October 2012)

“Understanding Judicial Decision Making in Immigration at the U.S. Courts of Appeals.”  With Margaret Williams.  The Justice System Journal  Vol. 33 (1) 97-119 (2012)

“The Diversity Immigration Lottery—A Cycle of Unintended Consequences.” Journal of American Ethnic HistoryVol 21(4):3-29, Summer 2002.

“How the Internal Adjudicative Procedures of the Ninth Circuit Can Disadvantage Pro Se and Political Asylum Claimants” 25 Georgetown Immigration Law Journal 647-679(Spring 2011)

“In Search of a Methodology and Other Tales from the Academic Crypt” in Researching Migration: Stories from the Field  (Sherrie Kossoudji, Louis DeSipio, and Manuel Garcia y Griego, eds.) (New York: Social Science Research Council (2007)

 “Race, Ethnicity, and National Origins in Public Policy¾When Should it Matter?” 10 Georgetown Immigration Law Journal  71-76 (1996)