Another response to President Johnson's plans was the rise of the Ku Klux Klan (KKK), a white supremacist organization that used violence and intimidation to terrorize African Americans and prevent them from exercising their rights. The KKK targeted African Americans who tried to vote, own land, or hold office, and their actions were often met with little or no resistance from local law enforcement.
Additionally, the Southern states attempted to nullify the Fourteenth and Fifteenth Amendments, which guaranteed African Americans' civil rights and voting rights, respectively. These states argued that the amendments were unconstitutional and that they violated the rights of the individual states.
In summary, the Southern response to President Johnson's Reconstruction plans included the implementation of Black Codes, the rise of the Ku Klux Klan, and attempts to nullify the Fourteenth and Fifteenth Amendments. These responses were manifestations of the resistance to the changes brought about by the Civil War and the emancipation of African Americans.