How did the presidential election of 1856 reflect a growing sectional divide in the United States?

Question- How did the presidential election of 1856 reflect a growing sectional divide in the United States

Answer- Democrats warned that a Republican victory would bring a civil war. The Republican platform opposed the repeal of the Missouri Compromise through the Kansas Nebraska Act, which enacted the policy of popular sovereignty, allowing settlers to decide whether a new state would enter the Union as free or slave.

its many islands, high mountains, and remote peninsulas isolated population centers.