How and why did America's popular opinion change about slavery over time? What changes occurred that reflected over this time period?

Answer. The AMERICAN REVOLUTION, as an anti-tax movement, centered on Americans' right to control their own property. In the 18th century "property" included other human beings.

In many ways, the Revolution reinforced American commitment to slavery. On the other hand, the Revolution also hinged on radical new ideas about "liberty" and "equality," which challenged slavery's long tradition of extreme human inequality. The changes to slavery in the REVOLUTIONARY ERA revealed both the potential for radical change and its failure more clearly than any other issue.

Because

Explanation:

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congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.