What was Andrew Jacksons nullification crisis?

The Nullification Crisis of the early 1830s was a political confrontation between South Carolina and the federal government, primarily over tariffs that the state deemed unfairly beneficial to Northern industrial interests at the expense of Southern economies. South Carolina, led by John C. Calhoun, declared that states had the right to nullify Federal Laws they found unconstitutional, specifically the Tariffs of 1828 and 1832. President Andrew Jackson opposed this notion of nullification, asserting the supremacy of federal law and threatening military action against South Carolina if it refused to comply. The crisis ultimately resolved with a compromise tariff, but it highlighted deep sectional tensions that would later contribute to the Civil War.