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.

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4,562 Articles
Space wars. Weapons in space (via Getty images)

America’s Missile Shield Raises Legal and Cybersecurity Concerns

The Golden Dome raises urgent questions: What are the legal boundaries for weapons in orbit? How can the United States prevent cybersecurity liabilities?
IMAGES (left to right): Natural disaster and its consequences (via Getty Images); In this picture taken on September 28, 2022, an internally displaced flood-affected family sits outside their tent at a makeshift tent camp in Jamshoro district of Sindh province (Photo by Rizwan Tabassum/AFP via Getty Images; Trees smolder and burn during the Dixie fire near Greenville, California on August 3, 2021. – Numerous fires are raging through the state’s northern forests, as climate change makes wildfire season longer, hotter and more devastating. (Photo by JOSH EDELSON/AFP via Getty Images)

Just Security’s Climate Archive

A catalog of articles analyzing the diplomatic, political, legal, security, and humanitarian consequences of the international climate crisis.
Judges of the International Criminal Court (ICC) await the verdict of a sentencing on November 20, 2024 at the ICC court in The Hague. (Photo by EVA PLEVIER/ANP/POOL/AFP via Getty Images)

Raising the Cost of U.S. Coercion Against the ICC

Previous administrations sought to reinterpret, evade, or selectively engage with international law. The Trump administration is actively delegitimizing and dismantling it.
The Ukrainian and Taiwanese flags

A Security Guarantee for Ukraine? Look to the Taiwan Relations Act

The United States and its allies can use the Taiwan model to make post-war Ukraine more secure without writing checks they cannot cash.
People demonstrate with CASA outside the Supreme Court of the United States on Thursday May 15, 2025. (Photo by Matt McClain/The Washington Post via Getty Images)

The APA Authorizes “Universal” Stays of Agency Action Under 5 U.S.C. § 705

For litigants seeking to move quickly against unlawful executive action, Section 705 of the Administrative Procedure Act should be a powerful tool.
The Just Security Podcast

The Just Security Podcast: What Just Happened – Federalization of DC Law Enforcement, Legal Authorities and Updates

Brian Netter and Mark Nevitt join David Aaron to break down the legal and policy implication of the federalization of D.C. law enforcement.
Pedestrians pass a combat vehicle

One Week of Trump’s DC Takeover Attempt: An analysis of the president’s use of military, police, and security services in the nation’s capital

Detailed legal analysis of federalization of DC police and the deployment of Guard, DHS and other forces.
Members of the DC National Guard talk to a tourist outside Union Station as a storm approaches in Washington, DC, on August 17, 2025. US President Donald Trump on August 11 deployed military and federal law enforcement to curb violent crime in Washington, as he seeks to make good on his campaign pledge to be a "law and order" president. The Republican leader said he would place the city's Metropolitan Police under federal government control while also sending the National Guard onto the streets of the US capital. (Photo by Andrew Caballero-Reynolds / AFP) (Photo by ANDREW CABALLERO-REYNOLDS/AFP via Getty Images)

Trump, the National Guard, and the District of Columbia: What You Need to Know

The president’s maximalist legal approach in deploying the military may well foreshadow broader use of the military in other American cities.
The U.S. Supreme Court building stands in Washington, D.C., U.S.

Taking Stock of the Birthright Citizenship Cases, Part II: Making Sense of the Three Established Exceptions

Analysis of the aftermath of Trump v CASA and the pending litigation about the Trump executive order on birthright citizenship.
U.S. Federal Bureau of Investigation (FBI) and Metropolitan Police Department (MPD) conduct a traffic stop near the U.S. Capitol

How to Truly Keep Washington, DC Safe: President Trump’s militarized approach undercuts what’s been working

The spectacle in DC is a warning: presidential authority is being stretched simply to grab power. History tells us that’s how liberty erodes.
The Just Security Podcast

Just Security Podcast: What Just Happened – Federalization of Law Enforcement in Washington DC

Carrie Cordero and Donell Harvin join David Aaron to discuss legal and policy considerations regarding federalization of law enforcement in DC.
US President President Donald Trump tours a migrant detention center

Big Budget Act Creates a ‘Deportation Industrial Complex’ That Will be Hard to Dismantle

An assessment of how DHS and ICE will spend new funds and the balance between deportation enforcement and the system's humanitarian goals and proper legal process.
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