The primary factors for migration among southern African Americans were segregation, an increase in the spread of racist ideology, widespread lynching (nearly 3,500 African Americans were lynched between 1882 and 1968), and lack of social and economic opportunities in the South.
The federal government is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the president, and the federal courts.
the Legislative branch (specifically the Senate) must ratify treaties. This check on the power of President is part of the system of checks and balances.
