Legality, Next Steps for Canadian Tariffs

Feb 14, 2025

1 min

Maurice A. Deane School of Law at Hofstra University Professor Julian Ku was quoted in The Globe and Mail article “The best hope for Canada in fighting a trade war with Trump may lie in U.S. courts."

“Using IEEPA to impose tariffs has not been done before, so there has never been a court ruling on this question,” said Julian Ku, who studies the interaction of international law and U.S. constitutional law at Hofstra University.

Mr. Trump has, however, argued that he is responding to external threats, citing the movement of fentanyl and illegal migrants to the U.S. from Canada, Mexico and China. That is likely to prove a potent defense, Prof. Ku said.

“The court has also been deferential to the President on national-security matters, and the language of the statute is very broad, so it is far from clear which way the court would come down on this issue,” he said.

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Julian Ku

Professor of Law and Interim Dean

The Maurice A. Deane Distinguished Professor in Constitutional Law and Professor of Law.

International LawInternational Law in U.S. CourtsConstitutional LawCorporate LawTrans Pacific Partnership

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Sep 24, 2026

2 min

A Rare September Nor’easter Takes Aim at the East Coast

A rare September nor’easter is developing along the East Coast, bringing the potential for heavy rain, strong winds, dangerous surf, coastal flooding and beach erosion from the Mid-Atlantic into the Northeast. ABC News reports that the storm is expected to intensify off the coast this week, although its ultimate impacts will depend heavily on its track and how close it comes to shore. The storm arrives as El Niño continues to strengthen in the Pacific. NOAA's Climate Prediction Center says there is now a greater than 90% chance of a very strong El Niño this fall and winter, adding another important element to questions about what kind of weather the Northeast could experience in the months ahead. Jase Bernhardt, PhD, associate professor of geology, environment and sustainability and director of Hofstra University’s meteorology program, can discuss the developing nor’easter, the factors influencing its track and intensity, and how strong El Niño conditions could shape weather patterns across Long Island and the Northeast. View his profile Covering the storm? We can help. Bernhardt can provide perspective on: Why a September nor’easter is unusual and what is driving this week's storm The potential for strong winds, coastal flooding, heavy rain and beach erosion Why small changes in a nor’easter's track can dramatically change local impacts How a strong El Niño can influence fall and winter weather patterns Whether the region could see more coastal storms later this fall and winter How residents should interpret and respond to severe-weather warnings Bernhardt's research also explores how people respond to warnings about dangerous weather. He has developed virtual reality simulations designed to demonstrate the risks associated with events including hurricanes, flash floods and snow squalls and to study whether immersive experiences can improve public response to severe-weather warnings. To arrange an interview today, simply click on his profile below

Sep 24, 2026

1 min

Professor Julian Ku Discusses U.N.’s Role in Global A.I. Debate

Hofstra Law Professor Julian Ku was quoted in a recent New York Times article examining the United Nations’ efforts to influence global discussions about artificial intelligence as the United States and China continue to lead the technology’s development. Professor Ku explained that the United Nations has historically struggled to shape how global powers use technologies unavailable to most other nations, including nuclear weapons and advanced cybertools. He said the organization may have greater success helping countries share in the benefits of A.I. than influencing the actions of the United States and China directly. “The U.N. can’t really shape the actions of those who have the power directly,” Ku said, but it can represent countries without that power.

Sep 17, 2026

1 min

Passing Regents No Longer a HS Graduation Requirement

Starting with the class of 2028, high school students will no longer need to pass their Regents exams in order to graduate. Professor Emeritus of Education Alan Singer talked to WNYW-TV Fox 5 and WCBS-TV about the change. “I don’t have confidence that many districts will actually maintain a high standard with these alternatives,” he said.