Final answer:
Dred Scott was considered as a property under the Constitution according to Chief Justice Roger Taney's ruling.
Step-by-step explanation:
According to Chief Justice Roger Taney's ruling, Dred Scott was merely considered as a property under the Constitution. In the 1857 Supreme Court case of Dred Scott v. Sandford, Taney delivered the majority opinion stating that enslaved African Americans like Dred Scott were property and not U.S. citizens. The ruling also declared that Congress had no power to ban slavery in the Western territories, further exacerbating the tensions between the North and South leading up to the Civil War.
Learn more about Dred Scott's status under the Constitution