Final answer:
The amendment process under the Constitution is an example of federalism because it involves both the national government and the state governments.
Step-by-step explanation:
The amendment process under the Constitution is an example of federalism because it involves both the national government and the state governments. In the United States, amendments to the Constitution can be proposed by Congress or by a national convention called for by two-thirds of the state legislatures. Once proposed, amendments must be ratified by three-fourths of either the state legislatures or state conventions. This process ensures that both the national and state governments have a role in amending the Constitution.