What are the three facts to describe federalism?

Federalism is a system of government in which power is divided between a central authority and regional entities, such as states or provinces. This structure allows for multiple levels of governance, enabling local governments to address specific regional needs while the national government handles broader issues. Additionally, federalism often involves a constitution that outlines the distribution of powers and responsibilities, providing a legal framework for both levels of government to operate. Finally, federal systems can promote political diversity and innovation by allowing states to experiment with different policies.