What power does the Constitution grant to Congress?

The Constitution grants Congress the power to declare war, which is an important function of the legislative branch in ensuring that the decision to engage in military actions is made through a deliberative process rather than unilaterally by the President. This power is outlined in Article I, Section 8 of the U.S. Constitution, where it explicitly states that Congress has the authority to declare war. This requirement reflects the idea that such significant decisions should involve the input and agreement of representatives of the people, ensuring a system of checks and balances among the branches of government.

The other powers listed are not solely granted to Congress. The interpretation of laws is primarily a function of the judiciary, which ensures that laws are applied fairly and according to the Constitution. The power to veto legislation is specifically designated to the President, serving as a check on Congressional power. Finally, the appointment of judges is primarily a responsibility of the President, who nominates federal judges with the advice and consent of the Senate. Thus, the power to declare war is distinctly vested in Congress, underscoring the legislative branch's critical role in national defense matters.