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.
I believe he created new laws for them to follow. Those laws are the Ten Commandments
Gold and jobs i guess there are a lot but those are what i thought of
