How did John c calhoun say the union could be saved?

John C. Calhoun believed that the Union could be saved through the principle of states' rights and the protection of minority interests. He advocated for the idea of nullification, where states could invalidate Federal Laws they deemed unconstitutional. Calhoun argued that a balance must be struck between federal authority and state sovereignty to maintain the Union, emphasizing that the government should respect the rights of individual states. Ultimately, he believed that compromise and mutual respect among states were essential for preserving the Union.