How did the Civil War settled the issues of the differences between free and slave states

States' Rights refers To the struggle between the federal government and individual states over political power. In the Civil War era, this struggle focused heavily on the institution of slavery and whether the federal government had the right to regulate or even abolish slavery within an individual state.

Explanation:

if you are talking about current time the answer is no

if you are talking about when the colonies were developing the answer is yes

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