What type of issues would the national government be responsible for?

National governments are responsible for maintaining internal and external security and stability. Usually, that means they're responsible for establishing national laws and enforcing them. They also must raise and train a military and set international policy.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”