Analysis and Commentary on Immigration Law

What’s Different—And What Isn’t—About Travel Ban 3.0

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Cornell University law professor Michael C. Dorf describes some of the key similarities and differences between the most recent iteration of President Trump’s ban on entry to the US by certain foreign nationals (“Travel Ban 3.0”) and earlier versions, and considers whether these differences will affect the determination of the policy’s legality. Although the Supreme Court might not ultimately be the court that answers the question, Dorf points out that we may have an answer before too long.

Don’t Shred the Evidence

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Cornell University law professor Joseph Margulies comments critically on the decision by the Bureau of Immigration and Customs Enforcement (ICE) to destroy certain records regarding detainees held in ICE custody. Margulies argues that the information ICE seeks to destroy can be helpful in assessing the conditions, staffing, supervision, and practices in various facilities, for the purpose of improving the worst ones and learning from the ones with the best practices.

Trump’s Travel Ban Heads to the Supreme Court

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Cornell University law professor Michael C. Dorf discusses possible implications and outcomes of the Supreme Court’s recent announcement that it will review the appeals court decisions invalidating President Trump’s travel ban executive order. Dorf explains the issue of mootness and also explains how one might predict how the Court will rule on the merits of the case.

Policing Sexism at the Border: The Supreme Court’s Decision in Sessions v. Morales-Santana

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SMU Dedman School of Law professor Joanna L. Grossman comments on the U.S. Supreme Court’s recent decision in Sessions v. Morales-Santana, in which the Court held unconstitutional a federal law imposing different physical presence requirements on mothers as compared to fathers. Grossman argues that the law at issue epitomized sex discrimination and was rooted in archaic generalizations about parents based on gender.

Supreme Court Rules That Citizenship Must Be Equally Heritable Through Fathers and Mothers

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Cornell University law professor Michael C. Dorf comments on a recent decision by the U.S. Supreme Court on the heritability of citizenship and explains why the decision might have implications for other immigration issues, such as the “Muslim ban” executive order. Dorf argues that the precedents the Court had to distinguish to reach its conclusion might give some insight into whether and how it might defer to other political branches on immigration issues.

Another New Federalism Flashpoint: State and Local Laws Targeting Entities that Assist in “Building the Wall”

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Illinois Law dean and professor Vikram David Amar comments on recent actions by state and local governments to oppose federal policies, such as the immigration and the wall along the U.S.–Mexico border. Amar argues that these attempts likely run contrary to the Supremacy Clause of the U.S. Constitution by attempting to interfere with the execution of federal policy.

The Complexities of a “Motive” Analysis in Challenging President Trump’s Executive Order Regarding Entry to the United States

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Illinois Law dean and professor Vikram David Amar and UC Davis Law emeritus professor Alan E. Brownstein explain the complexities behind analyzing the motive underlying legislation and executive orders. Specifically, Amar and Brownstein highlight the difficulty in courts’ using perceived motive to strike down President Trump’s executive order regarding entry to the United States.

Visas: The Historical and Legal Precedent

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Chapman University, Fowler School of Law, professor Ronald D. Rotunda explains the legal precedent behind the executive’s power to restrict visas for non-U.S. citizens to enter the United States. Rotunda points out that the recent opinion by the U.S. Court of Appeals for the Ninth Circuit fails to mention almost any of the precedential cases on point when it struck down President Trump’s executive order limiting immigration.

Did Trump’s “Muslim Ban” Talk Permanently Taint His Immigration Policy?

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Cornell University law professor Michael C. Dorf considers whether President Trump’s new executive order on immigration, anticipated to be issued this week, will fare better than Executive Order 13769, which temporarily banned nationals of seven predominantly Muslim countries and all refugees from entering the United States. Dorf discusses Trump’s past public statements advocating for a Muslim ban during his presidential campaign and applies the factors courts may use in evaluating whether those statements can be considered evidence of Trump’s motives for his actions as president, should the constitutionality of his executive order be challenged in court again.

How Strong is San Francisco’s “Sanctuary City” Lawsuit Against the Trump Administration?

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Illinois Law dean Vikram David Amar and California civil litigator Michael Schaps consider the strength of San Francisco’s lawsuit against the Trump Administration arising out of its identity as a “sanctuary city.” Amar and Schaps discuss both the ripeness of the claim, a threshold procedural matter, and also the merits of San Francisco’s arguments.

Law, Politics, and Symbolism in the Muslim Ban

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Cornell University law professor Joseph Margulies argues that the significance of President Trump’s “Muslim Ban” executive order lies not in the legal issues it presents, but in its symbolism. As Margulies explains, the executive order is a symbol that will be used to mobilize support for competing narratives about American life; what ultimately matters is which narrative prevails.

United States et al. vs. Texas et al.: A Political Question for November

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John W. Dean, former counsel to President Nixon, explains the significance of the U.S. Supreme Court’s equal division in the immigration case United States v. Texas, which involved a challenge to the Obama administration’s sweeping immigration policy. Dean argues that the Court is effectively punting the political question of the immigration policy to the winner of the 2016 presidential election.

Trump’s Post-Orlando Statements Reveal the True Nature of His Proposed Ban on Muslim Immigration

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Cornell University law professor Michael C. Dorf evaluates statements made by Donald Trump in response to the mass shooting at a gay nightclub in Orlando this past weekend. Dorf argues that by telling American Muslims that they are all presumed to be terrorists, Trump actually fosters resentment and radicalization in the small portion of the American Muslim community that has the potential for radicalization.

Prosecutorial Discretion: The Dog That Didn’t Bark in the Immigration Oral Argument—Yet

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Cornell University law professor Michael C. Dorf comments on the recent oral argument before the U.S. Supreme Court in United States v. Texas, a case involving a challenge to the Obama Administration’s deferred action immigration policy. Dorf points out that underneath the procedural questions actually before the Court in that case is a crucial unasked question: What is the scope of the president’s prosecutorial discretion not to enforce laws duly enacted by Congress?

Homespun Wisdom (and Wrongheadedness) in Iowa on the Treatment of Muslims

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Illinois Law dean and law professor Vikram David Amar evaluates three people’s statements regarding America’s treatment of Muslims: President Obama, an Iowa businessman, and a local Muslim cleric (an imam). Amar points out that Donald Trump’s proposal that America ban all Muslims from entering the country is vastly underinclusive (because the great majority of violent acts in this country are perpetrated by non-Muslims), and at the same time very overinclusive (because the overwhelming majority of Muslims who want to enter the United States intend no harm)—two indicators of legal and moral unfairness.

Arizona’s SB 1070 Immigration Law Is Back in Play in the Federal Courts

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University of Illinois law professor and dean Vikram David Amar comments on a recent decision by a federal district court in Arizona addressing a challenge to two parts of Arizona’s SB 1070 statute, which attempts to deal with immigration stresses in that state. Amar argues that the court’s reasoning on both claims was confused and unpersuasive and that the results should have been inverted. That is, Amar suggests that the court should have upheld the equal protection challenge to the “Show Me Your Papers” provision and rejected the First Amendment challenge to the Day Laborer provisions.

Meet our Columnists

Vikram David Amar

Vikram David Amar is the Dean and Iwan Foundation Professor of Law at the University of Illinois College of Law. Immediately prior to taking the position at Illinois, Amar served as the Senior Assoc... more

Neil H. Buchanan

Neil H. Buchanan is an economist and legal scholar and a Professor of Law at The George Washington University. He teaches tax law and tax policy, and he has taught contract law, law and economics, and... more

Sherry F. Colb

Sherry F. Colb is Professor of Law and Charles Evans Hughes Scholar at Cornell University. Colb teaches courses in constitutional criminal procedure, evidence, and animal rights. She has published a... more

John Dean

John Dean served as Counsel to the President of the United States from July 1970 to April 1973. Before becoming White House counsel at age thirty-one, he was the chief minority counsel to the Judiciar... more

Michael C. Dorf

Michael C. Dorf is the Robert S. Stevens Professor of Law at Cornell University Law School. He has written hundreds of popular essays, dozens of scholarly articles, and four books on constitutional la... more

Joanna L. Grossman

Joanna L. Grossman is the Ellen K. Solender Endowed Chair in Women and Law at SMU Dedman School of Law.  She is an expert in sex discrimination law. Her most recent book,  more

Marci A. Hamilton

Marci A. Hamilton is one of the country’s leading church-state scholars and the Fox Professor of Practice and Fox Family Pavilion Resident Senior Fellow in the Program for Research on Religion in the... more

David S. Kemp

David S. Kemp is an attorney and managing editor at Justia. He received his B.A. in Psychology from Rice University and his J.D. from the University of California, Berkeley, School of Law (Boalt Hall)... more

Joseph Margulies

Mr. Margulies is a Professor of Law and Government at Cornell University. He was Counsel of Record in Rasul v. Bush (2004), involving detentions at the Guantánamo Bay Naval Station, and in more

Anita Ramasastry

Anita Ramasastry is the UW Law Foundation Professor of Law at the University of Washington School of Law in Seattle, where she also directs the graduate program on Sustainable International Developmen... more

Ronald D. Rotunda

Ronald D. Rotunda is the Doy & Dee Henley Chair and Distinguished Professor of Jurisprudence, at Chapman University, Fowler School of Law. He joined the faculty in 2008. Before that, he was Univ... more