Mary B. McCord
Mary B. McCord is an American lawyer, national security analyst, and former government official. For almost 20 years, McCord served as a federal prosecutor in the office of the United States Attorney for the District of Columbia. She was also Principal Deputy Assistant Attorney General and Acting United States Assistant Attorney General for the National Security Division at the United States Department of Justice. McCord has written articles on the rule of law and domestic terrorism and has appeared on televised media outlets as a national security analyst.
Education
In 1990, McCord received a Juris Doctor from Georgetown University Law Center.Career
For almost 20 years, McCord was an Assistant U.S. Attorney for the District of Columbia. In the District of Columbia Court of Appeals, she served as Deputy Chief of the Appellate Division and as Chief of the Criminal Division.From 2014 to 2016, McCord served as Principal Deputy Assistant Attorney General for the U.S. Department of Justice National Security Division. She then served as Acting Assistant Attorney General for National Security from 2016 to 2017.
In 2017, McCord became a visiting professor of law at Georgetown University Law Center. In that position, she serves as executive director of the Law Center's Institute for Constitutional Advocacy and Protection.
After the January 6, 2021 attack on the U. S. Capitol, McCord became legal counsel to the U.S. House of Representatives Task Force 1-6 Capitol Security Review through an appointment by the Speaker of the House.
In 2023, McCord joined veteran prosecutor Andrew Weissmann as cohost of the MSNBC audio podcast Prosecuting Donald Trump, where ongoing legal cases against the former president were discussed. During the first year, more than 100 episodes were broadcast. When Donald Trump was reelected president in 2024, McCord and Weissmann switched the focus of their discussions to a new MSNBC audio podcast – Main Justice – about the US Department of Justice with regard to assaults on US democracy, its laws and its Constitution. The May 10, 2025 podcast also was published on the Weissmann May 10, 2025 episode of his Substack newsletter that is entitled, Behind The Headlines.
Within the United States Foreign Intelligence Surveillance Court of Review and the Foreign Intelligence Surveillance Court, McCord has the distinction of being a "statutorily designated amicus curiae".
Because of McCord's expertise in the rule of law and domestic terrorism, she has contributed articles for publication in the following media outlets:The AtlanticLawfareThe New York TimesThe Washington Post
As a national security analyst, McCord has appeared in the following broadcast media:
Select appearances on C-SPAN have included:
- January 6 Committee Investigators on Violent Domestic Extremism
- U.S. Mayors on Combating Hate Crimes and Violent Extremism Washington Journal – Mary McCord on Political Violence and Election Threats
- Atlantic Council Discussion on Combating Domestic Extremism
- Atlantic Council Discussion on Domestic Terrorism Threat
- Domestic Extremism and International Terrorism