Why did Stephen Douglas support the idea of Popular Sovereignty when designing the Kansas-Nebraska Act of 1854?
Popular Sovereignty was a provision placed in the Kansas-Nebraska Act by Stephen Douglas. Douglas was not concerned with the morality of slavery. Popular Sovereignty seemed democratic and fair because it allowed the citizens of the Kansas and Nebraska Territories to decide by voting whether or not to have slavery in their future states. However, it also repealed the Missouri Compromise line, which had excluded slavery in those lands. Other options are wrong because:
The end result of the Kansas-Nebraska Act might have been either (A) or (C), but there were no guarantees and these were not Douglas's concerns.
It was not a part of the U.S. Constitution for admitting new states (B).
It did not let Congress decide on slavery (E).