Answer:
Northerns who moved south during the reconstruction were called Carpetbaggers.
The Wilmot Proviso prevented new states from becoming slave states, the compromise enabled them to become slave states if popular sovereignty wanted them to be. California was allowed to become a new, non-slave state, and in return Slavery was enabled and allowed in the south, strengthening fugitive laws even more. To everyone it seemed like a victory for a while.
A. The way we elect the President of the United states
North America
is the most related terms