The South opposed it.
Southerners opposed the Wilmot Proviso. This is because the Wilmot Proviso established peace with Mexico, and the land that Mexico owned was in the South.
they opposed to it
Absolutely not.
Because the Wilmot Proviso sought to halt the extension of slavery in the western territories
wilmot proviso
They generally favored it.
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Slavery was outlawed in the South.
What was the unstated goal of the Wilmot Proviso?
because slaves were property protected by the constitution
Serious regional differences between the North and the South.
The Wilmot Proviso qualifies as such. It however, was one of the leading causes of the American Civil War (1861-1865)