Final answer:
Justice Taney claims that Black people were not considered citizens by the Constitution.
Step-by-step explanation:
Justice Taney's claim in this passage is that Black people were not part of the group considered citizens by the Constitution. He argues that they were seen as a subordinate and inferior class of beings who had been subjugated by the dominant race. Therefore, according to Taney, Black people could not claim any of the rights and privileges provided by the Constitution to citizens of the United States.
Learn more about Dred Scott v. Sandford