Final answer:
Federalism is a system of governance where power is shared between central and regional governments. The United States exemplifies this with specific powers allocated to each level of government.
Explanation:
Federalism is a system of government where power is divided between a central (national/federal) government and regional (state) governments. In the United States, the Constitution grants specific powers to the national government while also reserving certain powers for the states, leading to a shared governance model. Some examples of modern federalist systems include the United States, Canada, and Germany.
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