Executive Branch

Just Security’s expert authors provide analysis of the U.S. executive branch related to national security, rights, and the rule of law. Analysis and informational resources focus on the executive branch’s powers and their limits, and the actions of the president, administrative agencies, and federal officials.

Highlights:

Gavel and scales with a US flag in the background as symbols of a jurisdiction.

Litigation Tracker: Legal Challenges to Trump Administration Actions

A public resource tracking all the legal challenges to the Trump administration's executive orders and actions.
Binders of executive orders stacked on a desk.

Collection: Just Security’s Coverage of Trump Administration Executive Actions

Coverage of key developments, including in concise “What Just Happened” expert explainers, legal and policy analysis, and more. Check back frequently for updates.
CARIBBEAN SEA - SEPTEMBER 22: In this handout provided by the U.S. Navy, An AH-1Z Cobra, assigned to Marine Medium Tiltrotor Squadron (VMM) 263 (Reinforced), fires an air-to-ground missile (AGM) 114N during a live-fire exercise on September 22, 2025 in the Caribbean sea.

Using an Unmarked Aircraft to Attack an Alleged Drug Boat: Is it Perfidy?

Did the Sept. 2 strike on suspected drug traffickers using an unmarked aircraft violate the prohibition on perfidy, or other LOAC rules, had there been an armed conflict?
US Capitol building at sunset with moon

War Powers, Venezuela, Drug Boats, and Congress

The last year of unauthorized military interventions and the president’s threats should spur Congress to reassert its constitutional prerogatives over the use of force.
Trump is standing at a wooden lectern with the presidential seal on the front of it. The officials are arrayed behind him, against a dark blue backdrop with an American flag and a presidential flag between the backdrop and the officials. All the men are wearing suits, except Caine, who is wearing a blue Air Force uniform.

Trump’s New Year Foreign Policy: The Risk that the Bold and the Bad Outweigh the Constructive

Trump’s foreign policy remains an inconsistent array of initiatives and adventures: bold in Latin America, bad in Greenland, yet often constructive on Ukrainian security.

Collection: U.S. Lethal Strikes on Suspected Drug Traffickers, Operation Southern Spear, Operation Absolute Resolve

Collection of expert analysis on the legality of the U.S. strike on Venezuelan vessels in the Caribbean, the consequences of the strike, and related issues.
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4,632 Articles
The Martin Luther King Jr Memorial

On Martin Luther King Jr. Day, Let Not Arrogance Be Our Doom

With humility and our collective morals and values, we must extinguish the flames of hubris in US foreign and domestic policy, or "our arrogance will be our doom."
Iranians gather while blocking a street during a protest in Tehran, Iran on January 9, 2026. The nationwide protests started in Tehran's Grand Bazaar against the failing economic policies in late December, which spread to universities and other cities, and included economic slogans, to political and anti-government ones. (Photo by MAHSA / Middle East Images / AFP via Getty Images)

Military Force Will Not Help the People of Iran

This is an Iranian uprising, and it is up to the people of Iran to decide their own future.
A person enjoys an afternoon walk near the sea on January 15, 2026 in Nuuk, Greenland. (Photo by Alessandro RAMPAZZO / AFP via Getty Images)

How Congress Can Preserve NATO and Greenland: Using 22 USC 1928f to Protect the Peace

Trump’s threats to invade Greenland risk destroying NATO itself, but a little-known statute, 22 U.S.C. 1928f, could prevent him from doing just that.
View of smokestacks

Legal and Practical Implications of the U.S. Withdrawal from the U.N. Framework Convention on Climate Change

The U.S. withdrawal from the UNFCCC is a further blow to climate cooperation and a demonstration of U.S. foreign policy volatility.
NATO Leaders join King Willem-Alexander and Queen Máxima of the Netherlands for a family photo as they participate in the 2025 NATO summit on June 24, 2025 in The Hague, Netherlands. (Photo by Haiyun Jiang-Pool/Getty Images)

The North Atlantic Treaty and a U.S. Attack on Denmark

Would NATO have to defend Denmark if the United States attempted to seize Greenland? Article 5 suggests other allies are obligated to come to Denmark's defense if requested.
The Washington Monument reflects in the Capitol Reflecting Pool at sunset on a warm evening on June 2, 2025 in Washington, DC.(Photo by Kevin Carter/Getty Images)

The Anti-Corruption Tracker: Mapping the Erosion of Oversight and Accountability

This Anti-Corruption Tracker focuses on the erosion or dismantling of oversight and accountability systems within the United States Executive Branch.
(L) Treasury Secretary Scott Bessent; (R) Daniel Driscoll

Will Trump Allow Private Equity to Gut the Army Too?

Previous Army privatization experiences demonstrate that the logic of Secretary Driscoll’s proposal to court private equity firms is difficult to defend.
WASHINGTON, DC - DECEMBER 02: U.S. Secretary of Defense Pete Hegseth (R) looks on as U.S. President Donald Trump speaks during a meeting of his Cabinet in the Cabinet Room of the White House on December 02, 2025 in Washington, DC. (Photo by Chip Somodevilla/Getty Images)

Expert Q&A on U.S. Military Actions on Venezuela and Boat Strikes

Expert FAQ on the U.S. military operations against Venezuela, high seas boat strikes, seizure of vessels and more.

The Epstein Files and the Seven Member Rule

In a polarized Congress, discharge petitions and the Seven Member Rule preserve a limited but vital role for the minority, strengthening oversight.
Picture of fire at Fuerte Tiuna, Venezuela's largest military complex

International Law and the U.S. Military and Law Enforcement Operations in Venezuela

Experts survey the international law issues of Operation Absolute Resolve.
Screenshot of the Joint Resolution proposing the 22nd Amendment, from the General Records of the U.S. Government National Archives

No Indispensable Man: The Democratic Foundation of the 22nd Amendment

To violate the 22nd Amendment would be to discard the wisdom of those who sought to preserve U.S. democracy against the last rising tide of authoritarianism.

Hypothetical Legal Review on Judge Advocates Serving as Immigration Judges

A hypothetical legal review examining the OLC's legal basis for having Judge Advocates serve as immigration judges.
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