The Nullification Crisis was one of the main events of Jackson’s presidency that reflected the conflict between federal and state authority. The Nullification Crisis was an explicit confrontation between the state of South Carolina and the federal government, the State rejected the federal Tariffs of 1828 and 1832 and declared it null and void.
The Crisis ended with a proclamation issued by President Andrew Jackson that asserted that the federal government had the supremacy.
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
