It is essentially impossible for any governmental unit to operate alone; therefore, it is essential for public administrators to understand the nature of intergovernmental administration and the impact of federalism. Discuss the five key eras of intergovernmental administration in the U.S. and how fiscal federalism impacts intergovernmental relationships. Finally, discuss the intergovernmental tensions that emerge within states between the state, county, and municipal levels of government, and what can be done to shift from competition to cooperation