Answer:
The civil rights act
Explanation:
The Civil Rights Act of 1964 is a Bill that was signed into law after many years of political and civil agitations by the black community against the oppression, segregation and racism they faced over many years in the United States of America.
Therefore, as Dr Martin Luther King states that the African Americans were still crippled by segregation and discrimination which they faced. This was supposed to have come to an end with the passing into law of the Civil Rights Act.
A push factor is best defined as factors that makes you leave your country.