Final answer:
The passage argues that Black people are not included as citizens in the Constitution, but fails to provide evidence to support this claim.
Step-by-step explanation:
The passage from the opinion of the court in Dred Scott v. Sandford, written by Justice Taney, argues that Black people are not included as citizens in the Constitution and therefore cannot claim the rights and privileges granted to citizens. One counterclaim to this argument is that Taney fails to provide evidence for his statement that Black people were universally considered inferior. Without specific evidence, his statement lacks credibility and validity.
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