Match the event or concept with its impact on the expansion of slavery and sectionalism State' Rights Missouri Compromise Kansas-Nebraska Act Maintained the balance of free and slave states, but intensified sectionalism Allowed for popular sovereignty in new territories, leading to violence and conflict. Southern states argued they had the right to determine the legality of slavery X within their borders.
Missouri Compromise - Maintained the balance of free and slave states, but intensified sectionalism
Kansas-Nebraska Act - Allowed for popular sovereignty in new territories, leading to violence and conflict.
State' Rights - Southern states argued they had the right to determine the legality of slavery within their borders.