What is the unanswered question of the nullification crisis?

The unanswered question of the nullification crisis is whether or not a state has the right to nullify or invalidate federal laws within its borders. The crisis arose in the 1830s when South Carolina attempted to nullify the federal tariffs imposed by the federal government. While the crisis was resolved through a compromise, the question of states' rights versus federal power, particularly regarding the right of nullification, remains unresolved.