Immigration

U.S. military action in Mexico would not only be illegal, it would sabotage Trump’s stated immigration policy priorities and could lead to retaliation against Americans.

"In their apparent effort to give credence to the Trump Executive Order, Professors Barnett and Wurman indefensibly ignore these core, constitutive principles."

The president is wrong about what an invasion is—and what powers it triggers.

While the executive order is intended to enhance national security, it raises significant concerns.

Sending anyone from the United States to Guantanamo raises a host of legal, moral, and policy questions.

Updated to account for reply briefs and Feb. 5 judicial opinion issuing a nationwide preliminary injunction

Bringing foreign cartels under the umbrella of terrorism may seem appealing, but it is unnecessary and dangerous.

Trump's efforts to revive some version of the Muslim travel ban will harm people within the United States and chill protests.

The decision to release Osama Elmasry Njeem and fly him back to Libya immediately drew widespread outrage in Italy and beyond.

An expert explainer on the Executive Order on the "Invasion" Executive Order and deployment of troops.

Research has consistently shown that while many Syrians have a long-term aspiration to return, persistent challenges have rendered their aspiration unachievable in the short-term.

Analyzing legal and policy implications of President Trump using US military resources to support immigration enforcement at the border.