what is the division of power between the federal government and the states called?

The division of power between the federal government and the states is called federalism.

To find the answer to this question, you can start by researching the concept of federalism. Federalism is a political system where a country is divided into multiple levels of government, typically a central or federal government and regional or state governments. This division of power allows certain powers and responsibilities to be shared between the federal government and the states.

You can refer to reliable sources such as government websites, online encyclopedias, or academic articles to gather information on federalism and how power is divided between the federal government and the states. These sources can provide you with a more detailed understanding of the term and its implications.

http://www.usconstitution.net/consttop_fedr.html