Mr. McCarthy is a former law clerk to Judge David B. Sentelle of the United States Court of Appeals for the D.C. Circuit, and Judge Frank W. Bullock, Jr. of the United States District Court for the Middle District of North Carolina. Since 2011, Mr. McCarthy has been the co-director of the Supreme Court Clinic at the Antonin Scalia Law School at George Mason University, where he also is the co-director of the Administrative Law Clinic.
Mr. McCarthy earned his B.S. from the University of Notre Dame, where he was a Notre Dame Scholar, and his J.D. magna cum laude from George Mason University School of Law. Mr. McCarthy is a member of the Virginia and District of Columbia bars.