How was the impact of the mexican cession in 1848 similar to the impact of the louisiana purchase in 1803

Both sparked controversy on a political front by bringing new opportunities for political parties to gain more power. Think of the new territory as a way for a weaker side of politics to gain more power in the government.
You should probably use these evidences/terms in your
-North/South/West
-Tariffs
-Expansion, Westward and farmland
-rising tensions/sectionalism

Answerentrepreneurs;