Final answer:
Taney's claim in this passage is that Black people were not considered citizens by the Constitution.
Step-by-step explanation:
The claim made by Taney in this passage is that Black people were not part of the group considered citizens by the Constitution. Taney argues that Black people, whether emancipated or not, were seen as a subordinate and inferior class who had no rights or privileges unless granted by those in power. This opinion was a significant factor in denying Black people their rights and perpetuating a system of racial inequality and oppression.
Learn more about Dred Scott v. Sandford