How can the national government influence the ways that the states use their powers?

It really all comes down to money.

The perfect illustrative example of this would be the Department of Education. States have the power to enact their own education policies and nowhere is education laid out as a federal duty. And yet, a Federal department exists.

They enter by setting policies and giving enough money to the States to follow the federal policies.

answer: born in saint-dié, in the vosges department, france, he studied law, and was called to the bar at paris in 1854,[2] but soon went into politics, contributing to various newspapers, particularly to le temps. he attacked the second french empire with great violence, directing his opposition especially against baron haussmann, prefect of the seine department. a series of his articles in le temps was later republished as the fantastic tales of haussmannlaxupa (1868).[2]

explanation:

abraham lincoln