Which political party opposed the Dred Scott decision

Republican

Explanation:

Republican party

The Republican party (which was led by Abraham Lincoln) heard about this decision and decided to oppose it. The republicans opposed the decision of Dred Scott in 1857. For them, this was an attempt to destroy their nascent party. The democrats divided over the Dred Scott case.

Explanation:

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b. native americans them

answer; the period of time known as the middle ages;