President Trump's November 2018 memorandum delegated key authorities under Section 1757 of the National Defense Authorization Act for Fiscal Year 2019, transferring presidential powers over foreign investment reviews to Cabinet secretaries and agency heads. Section 1757 specifically governs the Committee on Foreign Investment in the United States (CFIUS), the interagency body responsible for scrutinizing foreign transactions that could affect national security. By delegating these authorities downward, Trump enabled faster decision-making on foreign direct investment without requiring presidential sign-off on individual transactions, effectively distributing national security vetting power across the executive bureaucracy.

The delegation directly impacts multinational corporations, foreign investors, and financial institutions seeking to acquire American assets or establish significant U.S. business operations. Companies in sensitive sectors—telecommunications, defense contracting, semiconductor manufacturing, and critical infrastructure—face streamlined but potentially more stringent CFIUS reviews conducted by lower-level officials with delegated authority. Foreign entities attempting major acquisitions in these industries now navigate an expedited process where individual agency heads can block transactions deemed to threaten national security, without requiring presidential approval to justify such decisions.

This memorandum represents part of a broader pattern of executive expansion concerning foreign policy and national security. The subsequent arms deals expedited in 2026 demonstrate how delegation mechanisms enable rapid foreign policy actions—in that case, $8.6 billion in military sales circumventing traditional congressional oversight. Similarly, the Iran maritime blockade deployment and continuation of national emergency declarations show how delegated authorities facilitate expansive executive responses to perceived threats. The CFIUS delegation established infrastructure allowing career officials to make significant determinations about foreign investment without centralized presidential control, potentially enabling inconsistent or ideologically-driven screening of foreign capital.

The memorandum remains formally active, with no documented court challenges or legislative reversal recorded. Congressional response has been muted, reflecting broader deference to executive discretion on CFIUS matters. Reversal would require either presidential rescission or legislative action to recentralize CFIUS authority or impose stricter procedural requirements on delegated decision-making.