Which of the following is NOT a function of Congress?

The function that is NOT a part of Congress's responsibilities is the interpretation of laws. This role is designated to the judicial branch of government, particularly the courts. Congress's primary functions include making laws, declaring war, and ratifying treaties, all of which are essential for governance and the functioning of the state.

When Congress makes laws, it formulates the legal framework that guides society. Declaring war is an important power that allows Congress to engage the nation in military conflicts through formal declarations. Ratifying treaties, often negotiated by the President, involves Congress's role in approving agreements with other nations, ensuring checks and balances in foreign relations.

Understanding the separation of powers within the U.S. government highlights the distinct roles of each branch: Congress (legislative) creates laws, the President (executive) enforces them, and the courts (judicial) interpret them. This separation ensures that no single branch has unchecked power, maintaining a balanced government system.