How did the Mexican War contribute to feelings of sectionalism in America?

There was disagreement over whether land gained as a result of the war would be free or slave. was unnecessary. ... They opposed the Kansas-Nebraska Act because they were against the expansion of slavery into new states.

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an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

the first action that caused many creek indians to turn against william mcintosh was when mcintosh a) supported the united states during the creek war of 1813–1814. b) attempted to stop the sale of creek land to the u.s. government. c) seized control of over 1,000 acres of land belonging to the creeks.