The federal courts, especially the Supreme Court, are often called upon to umpire the ongoing debate about which level of government should do what, for whom, and to whom. This role for the courts was claimed in what important case?

McCulloch vs Maryland

Explanation:

The McCulloch vs Maryland cases helped to contributed by giving Congress power in the Constitution to create a national government that is functional and ensure that the actions of state may in no way, impede any constitutional exercise of power deemed valid and executed by the Federal government. This is applied to the case of the federal courts being called upon to umpire ongoing debate about which level of government should do what, for whom, and to whom.

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.