How did Truman's efforts to expand civil rights for African Americans lead to division in the Democratic Party ?

The majority of the Southerners in the Democratic Party were against his policy of expanding civil rights for African Americans

Explanation:

During the administration of then, President Harry S. Truman took various steps to expand civil rights for African Americans. This eventually leads to division in the Democratic Party.

This is evident in the fact that the majority of the Southerners who are not happy about the attempt of President Truman left the Democratic Party, to join another party. The other Southerners that remained also voted against Truman.

This development eventually cost him his second term ambition as President

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they liv