How is the three-branch system of government reflected at the local, state, and federal levels?

The governance of the United States is based on three-branch system where the division is done into local, state and central government presided over by different authorities.

Local government is the most basic with least powers, whereas the powers and functions of the government keep increasing with increase in jurisdiction.

Hence, the governance of the United States of America is divided into three levels, namely, local, state and federal for effectiveness and efficiency in governance.

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the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.