Question

what democratic senator pushed the idea of popular sovereignty in kansas and nebraska?

a. john c. calhoun

b. david wilmot

c. john brown

d. stephen douglas

Explanation:

To solve this, we recall historical context: Stephen Douglas, a Democratic senator, proposed the Kansas - Nebraska Act which relied on popular sovereignty (allowing settlers in those territories to decide on slavery). John C. Calhoun was known for pro - slavery views but not this specific idea. David Wilmot is associated with the Wilmot Proviso. John Brown was an abolitionist known for raids, not this legislative push.

Answer:

D. Stephen Douglas