Which presidential cabinet department primarily advises the president on foreign policy?

The Department of State is primarily responsible for advising the president on foreign policy matters. This cabinet-level department manages international relations, conducts diplomacy, and oversees the implementation of the president's foreign policy agenda. Its officials engage with foreign governments, negotiate treaties, and represent the United States at the United Nations and other international organizations. This role is essential for shaping how the U.S. interacts on the global stage and addressing international issues.

In contrast, other departments, such as the Department of Homeland Security, focus on domestic security and issues related to protecting the nation from threats. The Department of the Interior manages the nation's natural resources and public lands, while the Department of Commerce deals with economic growth, trade, and business-related issues. Although these departments may have input on aspects of foreign affairs, they do not serve the primary role of advising the president on foreign policy, which is specifically the domain of the Department of State.