The power explicitly given to Congress in the Constitution regarding foreign affairs is outlined in Article I, Section 8, Clause 3, also known as the Commerce Clause. This clause grants Congress the power to regulate commerce with foreign nations, among the several states, and with Native American tribes. It allows Congress to establish rules and regulations for trade, importation and exportation, and commerce with other countries. Additionally, Congress has the power to impose tariffs, duties, and regulations related to foreign trade.
