It made it possible for slavery to be allowed in more areas.
The Abolitionist objection was that it could allow new slave-states. But most Northerners were not Abolitionists, and were quite favourable to Stephen Douglas and his principle of Popular Sovereignty.
Kansas-Nebraska act
people from nebraska still went into to vote for the south presidental candidate in a northern state.
Slaves
Kansas and Nebraska
Kansas and Nebraska were created after the Kansas-Nebraska Act of 1854. The reason for this Act was to open new farmland and create a Transcontinental Railroad.
Stephan A. Douglas proposed the Kansas Nebraska Act in 1854.
The Missouri Compromise was effectively ended by the Kansas-Nebraska Act, however since there was still turmoil as to the "Bleeding Kansas" dispute, it was thought that the Kansas-Nebraska Act would be shortly overturned. The Dred Scott decision by the Supreme Court further strengthened the elimination of the Missouri Compromise and the institution of slavery north of the Mason-Dixon Line by ruling that slaves were not able to take cases to court.
The Kansas-Nebraska Act of 1854 called for "popular sovereignty."
Stephen Douglas
Nebraska had less problems than Kansas so Nebraska is a better state
Kansas Nebraska Act