- Department of Homeland SecurityLegality of Service of Acting Secretary of Homeland Security and Service of Senior Official Performing the Duties of Deputy Secretary of Homeland Security https://www.gao.gov/mobile/products/b-331650 3 comments politics
- Department of Homeland Security—Legality of Service of Acting Secretary of Homeland Security and Service of Senior Official Performing the Duties of Deputy Secretary of Homeland Security https://www.gao.gov/assets/710/708830.pdf 10 comments politics