For almost 20 years,[2] McCord served as a federal prosecutor in the office of the United States Attorney for the District of Columbia.

McCord has written articles on the rule of law and domestic terrorism and has appeared on televised media outlets as a national security analyst.

[2] From 2014 to 2016, McCord was Principal Deputy Assistant Attorney General for the U.S. Department of Justice National Security Division.

[2] In that position, she serves as executive director of the Law Center's Institute for Constitutional Advocacy and Protection.

[5] 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 are discussed.