the growth of the federalism in USA.
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Federalism is one of the most important and innovative concepts in the U.S. Constitution, although the word never appears there. Federalism is the sharing of power between national and state governments. In America, the states existed first, and they struggled to create a national government.
Federalism in the United States, also referred to as the doctrine of shared sovereignty, is the constitutional division of power between U.S. state governments and the federal government of the United States. Since the founding of the country, and particularly with the end of the American Civil War, power shifted away from the states and towards the national government. The progression of federalism includes dual, state-centered, and new federalism.
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