Final answer:
In a federal system of government, the power of the state should be supreme when it comes to state-specific issues, while the federal government should have the final say on matters that affect the entire nation.
Step-by-step explanation:
In a federal system of government, there is a division of powers between the state and federal governments. The power of the state should be supreme when it comes to issues that are specific to the state and do not have a significant impact on the nation as a whole. Examples of such powers include regulating intrastate commerce, education policies, and criminal law. On the other hand, the federal government should have the final say on matters that affect the entire nation, such as foreign policy, national defense, and interstate commerce. These decisions are made based on the principle of federalism, which aims to balance the power between the state and federal governments.