USA HISTORY

Detailed explanation-1: -The U.S. Supreme Court ruled in the Dred Scott decision that Congress had exceeded its authority in the Missouri Compromise because it had no power to forbid or abolish slavery in the territories west of Missouri and north of latitude 36°30′.

Detailed explanation-2: -Chief Justice Roger Taney Taney became best known for writing the final majority opinion in Dred Scott v. Sandford, which said that all people of African descent, free or enslaved, were not United States citizens and therefore had no right to sue in federal court.

Detailed explanation-3: -The U.S. Supreme Court’s ruling in the Dred Scott case struck down the Missouri Compromise as unconstitutional, maintaining that Congress had no power to forbid or abolish slavery in the territories.