What law did Stephen Douglas need to repeal in order to gain southern support for the Kansas-Nebraska Act?

Question

Quizplus · Accepted Answer

Stephen Douglas needed to repeal the Missouri Compromise to gain southern support for the Kansas-Nebraska Act. The Missouri Compromise had prohibited slavery in territories north of the 36°30' line, but the Kansas-Nebraska Act allowed popular sovereignty (the idea that residents of a territory could vote on whether slavery should be allowed) in those territories, which could potentially lead to the expansion of slavery into areas where it had been previously banned. The southern states were in favor of this because they wanted the ability to expand slavery into new territories, whereas the northern states were opposed because they wanted to limit the spread of slavery.

What Law Did Stephen Douglas Need to Repeal in Order