Final answer:
Justice Taney's argument in Dred Scott v. Sandford that Black people were not citizens can be countered by the lack of evidence provided for their inferiority.
Step-by-step explanation:
In the case of Dred Scott v. Sandford, written by Justice Taney, he argues that the Black people described in the plea in abatement were not considered citizens and therefore did not have the rights and privileges stated in the Constitution. A counterclaim to this argument could be that Taney fails to provide any actual evidence for his statements that Black people were universally considered inferior. It is important to critically analyze the claims and evidence presented in historical documents.
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