The Supreme Court’s ruling in the Scott v. Sandford case declared which of the following was unconstitutional?

In Scott v. Sandford (the Dred Scott decision), the Supreme Court ruled that Congress could not prohibit slavery in the territories. On that basis, it declared the Missouri Compromise unconstitutional because the law barred slavery in parts of the Louisiana Purchase. The ruling did not invalidate the Fifth Amendment itself, the Compromise of 1850, or the Kansas-Nebraska Act.

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