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<span class="vcard">Joseph Nunn</span>

Joseph Nunn

Guest Author

Joseph Nunn (@josephanunn) is a Counsel with the Brennan Center for Justice’s Liberty and National Security Program, where his research focuses on federal and state emergency powers and the domestic role of the U.S. military. Joseph is the author of the Brennan Center’s report, Martial Law in the United States: Its Meaning, Its History, and Why the President Can’t Declare It. He is a graduate of the University of Chicago Law School.

Articles by this author:

An overhead view of the Pentagon building in Washington, DC.

Much Ado About Nothing: Recent Changes to Department of Defense Directive 5240.01

Oct. 25, 2024 and
A uniformed person with their back to the camera, setting razor wire next to a river.

Biden Can, But Shouldn’t, Federalize the Texas National Guard

Feb. 7, 2024
An aerial image shows migrants waiting along the border wall to surrender to Border Patrol agents for immigration and asylum claim processing

DeSantis Campaign’s Border Proposal Raises Separation of Powers Concerns

Jul. 18, 2023 and
Immigrants seeking asylum in the U.S., who are stuck in a makeshift camp between border walls between the U.S. and Mexico, sit as a Customs and Border Protection officer keeps watch while other migrants are lined up to be transported.

As Title 42 Comes to an End, So Should Military Operations at the US-Mexico Border

May. 19, 2023
Members of the DC National Guard are deployed outside of the US Capitol in Washington DC on January 6, 2021. - Donald Trump's supporters stormed a session of Congress held today, January 6, to certify Joe Biden's election win, triggering unprecedented chaos and violence at the heart of American democracy and accusations the president was attempting a coup.

The Biden Administration’s Senseless Opposition to Congress’s Effort to Prevent Abusive National Guard Deployments

Jul. 28, 2022 and
Image: A group of about 12 men, all wearing white cowboy hats, sit around a conference table. Texas Governor Greg Abbott sits at the end of the table, speaking, in front of the seal of the state of Texas and flanked by American and Texas flags. AUSTIN, TX - JULY 10: Texas Gov. Greg Abbott speaks during a border security briefing with sheriffs from border communities at the Texas State Capitol on July 10, 2021 in Austin, Texas. (Photo by Tamir Kalifa/Getty Images)

The Biden Administration’s Options for Responding to Abbott’s Unconstitutional Border Enforcement Executive Order

Jul. 13, 2022 and
MIAMI, FLORIDA - JUNE 07: Florida Gov. Ron DeSantis arrives for a bill signing ceremony at the Florida National Guard Robert A. Ballard Armory on June 07, 2021 in Miami, Florida. The governor signed the bills to combat foreign influence and corporate espionage in Florida from governments like China. (Photo by Joe Raedle/Getty Images)

Reestablishing Florida’s State Guard Won’t Give DeSantis a Private Army Free of Federal Control

Dec. 9, 2021
Members of the National Guard, holding shields, form a line during the night of January 6. Behind them is the Capitol building.

Why D.C.’s Mayor Should Have Authority Over the D.C. National Guard

Jan. 8, 2021 and
U.S. Army soldiers work fortifying the US-Mexico border fence with barbed wire on November 26, 2018 in Mexicali, Mexico.

DOD Inspector General’s Report Whitewashes Potential Violations of the Posse Comitatus Act

Sep. 3, 2020

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