What rights over the federal government did interposition and nullification give states?

Interposition and nullification were doctrines that asserted states' rights to challenge federal authority. Interposition allowed states to intercede on behalf of their citizens against Federal Laws deemed unconstitutional, while nullification asserted that states could invalidate federal laws within their borders. These concepts were rooted in the belief that the federal government was a creation of the states, thus granting states the power to resist federal overreach. However, both doctrines have been largely rejected by the Supreme Court and are viewed as contentious interpretations of federalism.