This made Kansas a slave state and Nebraska a free state. However, he believed in the popular sovereignty that allowed these states to vote for whether or not they wanted to be a free or slave state. This repealed the Missouri Compromise because it allowed slavery north of the slavery line since both Kansas and Nebraska were above the line. The Kansas-Nebraska act was not successful in reducing tensions between the North and the South because northerners became irate at the act, declaring it “a gross violation of a sacred pledge.” This reignited the spark between the South and the North ultimately setting the footing for the Civil War. Abolitionists had many settlers move to Kansas to gain the majority. Southerners became furious at the abolitionists and decided to send many settlers and slave owners to Kansas to try to regain the majority. Both sides were loaded with weapons, increasing tension. This tension became violent, starting skirmishes between the anti-slavery and pro-slavery supporters. A group of pro-slavery supporters raided the town of Lawrence (free city) where they burned buildings and looted stores, causing this chain of events to be called “Bleeding