Describe the methods of intimidation used against supporters of Reconstruction

an increasing number of southern whites turned to violence in response to the revolutionary changes of Radical Reconstruction. The Ku Klux Klan and other white supremacist organizations targeted local Republican leaders, white and black, and other African Americans who challenged white authority.

Explanation:

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."