Movements for civil rights in the United States include noted legislation and organized efforts to abolish public and private acts of racial discrimination against African Americans and other disadvantaged groups between 1954 and 1968, particularly in the southern United States.
South Carolina felt it had the right to nullify a federal law because it wad unfair. Jackson had supported state's rights, but in this case he responded with threats of military actions if South Carolina tried to secede because Jackson wanted to keep the Union together. i found i on this https://answers.yahoo.com/question/index?qid=20151104110740AAszs9X
