Leader Henry Clay<span> designed a compromise, which failed to pass in early 1850, due to opposition by both pro-slavery southern Democrats, led by </span>John C. Calhoun<span>, and anti-slavery northern Whigs.</span>
...he believed in the limited use of federal power but also that states were not truly sovereign.
Slavery developed in the American colonies in the mid-1600s due to the economy of the South depending on the cultivation of crops; the need for agricultural labor led to the establishment of slavery.
C is not an initiative of the Unemployed Citizens League of Washington.
hope this helps you
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