Writer, Scholar, Attorney

I am an Attorney of Counsel at Miller Mayer LLP, Professor of Immigration Law Practice at Cornell Law School, and Nonresident Fellow at the Migration Policy Institute. I am also co-author of Immigration Law and Procedure, a 21-volume treatise on immigration law. View my credentials.

Expert Witness

I have testified before Congress and in state and federal court on a variety of immigration issues. Links to cases and my congressional testimony are available here.

Media Relations

Immigration is headline news. I help members of the media understand the complicated legal issues behind controversial immigration topics. View some of my media clips here.


‘We Will Fight Back.’ Immigration Groups Vow to Fight Trump Restrictions on Green Cards

Pro-immigration groups are criticizing a new Trump administration plan to deny green cards to applicants who use public assistance, such as Medicaid and food stamps, as an attempt to limit immigration to wealthy individuals, thus negatively impacting low-income...
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Trump Administration expands fast-tracked deportation practices

On Monday, the U.S. Department of Homeland Security said it would expand its expedited removal program, usually limited to the southern border, to rapidly deport undocumented immigrants found anywhere in the United States. The Trump Administration cites long detention...
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Trump immigration raids scheduled to start this weekend

Last week, I spoke with several news outlets about Trump's planned immigration raids. While the number of people targeted by these raids is significantly smaller in scale than the number of people ICE detains on an ongoing basis, the announcement and execution of the...
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Trump’s tougher border policy appears to be backfiring, experts and data suggest

Despite Trump's claims that he wants someone who will be "tougher", on immigration issues, Kirstjen Nielsen will be perceived as the most hardline Secretary of Homeland Security we've ever had. Recent data from U.S. Customs and Border Protection Recent reveal Trump's...
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Trump’s immigration agenda faces serious legal hurdles, no matter who is homeland security secretary

Trump's call for a "tougher" secretary of homeland security is unrealistic. ABC reports on how Kirstjen Nielsen's time in the Trump administration was complicated by her accountability to Congress and how the immigration changes Trump and his administration have been...
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Ninth Circuit Appeals Court Grants More Protections for Asylum Seekers

The number of migrants seeking asylum at the southern border of the US has been steadily rising. Trump's administration has tried to make claiming asylum harder by narrowing grounds for winning asylum, imposing daily entry quotas, and forcing people to stay in Mexico...
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Meet the immigrant who got a second chance from Justice Neil Gorsuch

In 2010, James Dimaya's no contest plea for residential burglargies led an Obama administration immigration judge to bring removal proceedings against the lawful permanent resident. Arguing the law used against him was unconstitutionally vague, Dimaya's lawyers...
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CNN: Trump says Alabama woman who joined ISIS should not return to US

The Trump administration asserts that Hoda Muthana, the Alabama woman who joined ISIS and is publicly pleading to come back to the United State, cannot return, but the situation is not clear cut. I spoke with CNN about some of the circumstances and details involving...
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Reuters: Trump limits asylum from Mexico border, caravans head north

I was quoted in a Reuters article on President Trump's executive order that suspends the granting of asylum to migrants who cross the U.S.-Mexico border illegally. "...Stephen Yale-Loehr, a professor at Cornell Law School, said the administration may struggle to...
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An executive order cannot repeal birthright citizenship, period.

Should President Trump make good on his threats to sign an executive order ending birthright citizenship, the move would be both legally and procedurally invalid. In an op-ed for The New York Daily News, I outline several obstacles the President’s stated...
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