What is one power of the federal government under the Constitution?

The power to declare war is one of the clearly defined responsibilities of the federal government outlined in the Constitution. Specifically, Article I, Section 8 grants Congress the authority to declare war, thereby establishing it as a key aspect of federal power and responsibility in relation to national defense and military actions. This power ensures that decisions about engaging in war are made at the federal level, reflecting the need for a unified approach to national security, rather than leaving such significant decisions to individual states.

The other choices do not align with the powers specifically allocated to the federal government in the Constitution. Education is primarily managed at the state and local level, and while the federal government can influence education through funding and policy, it does not have the direct authority to provide education. Similarly, marriage is traditionally under state jurisdiction, meaning states regulate marriage licenses and related laws. Lastly, while the federal government can impose taxes, states have their own authority to control state taxes independently, which further distinguishes the powers outlined in the Constitution.