Answer:
The Last One
Explanation:
The Powers not delegated to the United States, are reserved to the States respectively
Some examples of this were the Fugitive Slave Act, Preston Brooks's attack on Charles Sumner, and the Dred Scott decision (the part of it which said that African Americans could never be citizens). None of these events tangibly hurt the North or the South.
Answer:
the U.S. to gain more leverage over relations with the Soviet Union
Explanation:
Hope the hint helps