How did the Mexican-American War (1846-48) and the Wilmot Proviso (1848) contribute to growing sectionalism in the United States? A
Border disputes sparked conflict between the the Native Americans and western settlers.
В.
Popular sovereignty became less of an issue in American political debates.
С.
The war led to an increase of support for temperance movements in the West.
D
The issue of slavery was again brought to the forefront of American politics.