3. It ended the slave trade in some southern states
The end of the Roman Republic was attributed to the instability of the Roman economy and conflicts within the military and the ruling families. The Republic should have moved towards absolute democracy instead of relying on the royal families to govern the country.
The Calhoun doctrine shows that Calhoun wanted states to have the right to nullify national laws
I would say D hope this helps thank you:)
They didn't want to be involved in any (foreign) wars that didn't have anything to do with the United States.
Hopefully this has helped!
