Answer:
Fearing that the issue might disrupt the Republic, he argued for the doctrine of popular sovereignty-the right of the people of a state or territory to decide the slavery question for themselves-as a Union-saving formula. He led the fight in Congress for the Compromise of 1850.
Question 1: D
Question 2: B
Question 3: A
Question 4: A
Question 4: either A or D
<span>One of the underlying causes of slavery, and its expansion in North America, was the nature of the capitalist economic system itself.</span>
