Final answer:
Taney's claim in this passage is that Black people were not considered citizens by the Constitution.
Step-by-step explanation:
In this passage, Taney's claim 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 were subjugated by the dominant race. As a result, they did not have the same rights and privileges as citizens of the United States, and the Constitution did not include them as citizens.
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