There are essentially 2 schools of thought on the role of the Federal government. Unfortunately, this one is being discarded to our detriment.
(a) Federalism is rooted in the knowledge that our political liberties are best assured by limiting the size and scope of the national government.
(b) The people of the States created the national government when they delegated to it those enumerated governmental powers relating to matters beyond the competence of the individual States.
All other sovereign powers, save those expressly prohibited the States by the Constitution, are reserved to the States or to the people.
Ronald Reagan October 26, 1987 Presidential Executive Order 12612
Contrast what President Reagan presented as the proper role of the Federal Government against what we’re hearing these days from Washington, DC politicians of all stripes.