Jack Balkin: jackbalkin at yahoo.com
Bruce Ackerman bruce.ackerman at yale.edu
Ian Ayres ian.ayres at yale.edu
Mary Dudziak mary.l.dudziak at emory.edu
Joey Fishkin joey.fishkin at gmail.com
Heather Gerken heather.gerken at yale.edu
Abbe Gluck abbe.gluck at yale.edu
Mark Graber mgraber at law.umaryland.edu
Stephen Griffin sgriffin at tulane.edu
Bernard Harcourt harcourt at uchicago.edu
Scott Horton shorto at law.columbia.edu
Andrew Koppelman akoppelman at law.northwestern.edu
Marty Lederman msl46 at law.georgetown.edu
Sanford Levinson slevinson at law.utexas.edu
David Luban david.luban at gmail.com
Gerard Magliocca gmaglioc at iupui.edu
Jason Mazzone mazzonej at illinois.edu
Linda McClain lmcclain at bu.edu
John Mikhail mikhail at law.georgetown.edu
Frank Pasquale pasquale.frank at gmail.com
Nate Persily npersily at gmail.com
Michael Stokes Paulsen michaelstokespaulsen at gmail.com
Deborah Pearlstein dpearlst at princeton.edu
Rick Pildes rick.pildes at nyu.edu
Richard Primus raprimus at umich.edu
K. Sabeel Rahmansabeel.rahman at brooklaw.edu
Alice Ristroph alice.ristroph at shu.edu
Neil Siegel siegel at law.duke.edu
Brian Tamanaha btamanaha at wulaw.wustl.edu
Mark Tushnet mtushnet at law.harvard.edu
Adam Winkler winkler at ucla.edu
I've been meaning to post something on Arizona's new immigration law, but haven't had the time until now. The constitutional challenge to the law will likely be that it is preempted by existing federal immigration law, and therefore violates the Supremacy Clause of Article VI, but the constitutional question is far from clear. The new Arizona law aims to assist in enforcement of federal laws against illegal immigration. So this is not a statute that only incidentally affects federal immigration policy. Quite the contrary: its stated purpose is to cooperatively assist the federal government in protecting the nation's borders, identifying illegal aliens, apprehending them, and delivering them to federal authorities. The bill was deliberately written to be preemption-proof by tracking federal definitions and placing state law enforcement officials in the service of enforcing federal law.
If so, how can the law be preempted by federal law? The answer is that the federal government might well believe that Arizona's attempt at helping it enforce its immigration laws is counterproductive and therefore actually conflicts with federal enforcement policy. In this case, the fact that Arizona is tracking federal definitions of who is an illegal alien might make things worse for the law's constitutionality, not better. First, Arizona will not be able to justify the law on the grounds that it has only incidental effects on federal immigration policy; Second, it will be more difficult for Arizona to argue that the scope of its new law is not already occupied by the federal scheme and that the law does not interfere with federal law's balancing of the relative costs and benefits of adopting particular enforcement policies.
The leading Supreme Court case on preemption of state immigration law, De Canas v. Bica, is now thirty five years old and predates recent federal immigration reforms, so it is anybody's guess about what the current Supreme Court would think about the issue. De Canas upheld a California law which made it a crime to knowingly hire an illegal aliens; the decision has lots of language that gives states plenty of room to pass immigration regulations consistent with federal law. On the other hand, DeCanas assumed that the law in question did not significantly interfere with federal immigration policy, or at least, there was no evidence in the record that it did.
There is a much stronger argument [than was available in De Canas] that the new Arizona law, while purporting to be helpful, actually sticks a thumb in the eye of the federal government by engaging in draconian measures. The Arizona legislature appears to be saying, in effect: "since you won't police the borders, we will, and if you don't like it, pass some new legislation." If this is the point of the new Arizona law, then the law isn't really an attempt at cooperation but an attempt at provocation and one-upmanship, and the chances that it is preempted increase.
Of course, what a given federal court will do in this situation is difficult to predict, because federal courts can construe the Arizona law and existing federal law to make them seem harmonious if it wants to uphold the legislation, or in serious conflict if the court wants to hold that the new law is preempted. The law of preemption gives courts considerable discretion, and much depends on what the bill seems to symbolize and how it is actually enforced in practice.
Thus, opponents of the new law would be well advised to assemble a factual record demonstrating how enforcement of the new law interferes with federal policy or makes it more difficult, for example, by alienating Latino communities and other local organizations in Arizona, thereby making them more reluctant to provide information or cooperation in ways that assist enforcement. Evidence of overreaching by state law enforcement officials would also tend to show that what purports to be a cooperative measure is not actually cooperative at all.