Dred Scott v. Sandford is the 1857 U.S. Supreme Court decision that ruled people of African descent, whether enslaved or free, were not citizens under the Constitution and had no right to sue in federal court. In the same 7-2 opinion, the Court struck down the Missouri Compromise, holding that Congress had no power to ban slavery in federal territories.1National Archives. Dred Scott v. Sandford (1857) The ruling hardened the divide between free and slave states, helped push the nation toward the Civil War, and was ultimately erased by the Thirteenth and Fourteenth Amendments.
Who Dred Scott Was and What He Sued For
Dred Scott was born into slavery in Virginia and later purchased by Dr. John Emerson, a U.S. Army surgeon. Between 1833 and 1843, Emerson took Scott to Fort Armstrong in Illinois, a free state, and then to Fort Snelling in the Louisiana Territory (present-day Minnesota), where slavery was banned under the Missouri Compromise of 1820.2Justia. Dred Scott v. Sandford Scott married Harriet Robinson at Fort Snelling, and the couple had two daughters during those years on free soil. Emerson eventually returned the family to Missouri, a slave state.
After Emerson died in 1843, his widow Irene refused Scott’s offer to purchase his family’s freedom. On April 6, 1846, Dred and Harriet filed separate freedom petitions in St. Louis Circuit Court.3Missouri Digital Heritage. Dred Scott Case, 1846-1857 Their argument was simple: prolonged residence in a free state and a free territory had made them legally free. After years of losses, victories, and reversals in Missouri courts, ownership passed to John Sanford of New York (his name was misspelled “Sandford” in the court filing), and the difference in state residence let Scott refile in federal court.2Justia. Dred Scott v. Sandford
What the Supreme Court Ruled
Chief Justice Roger B. Taney delivered the majority opinion on March 6, 1857.4Oyez. Dred Scott v. Sandford The Court delivered two devastating holdings.
People of African Descent Were Not Citizens
Taney first addressed whether Scott could bring a federal lawsuit at all. His answer was no. He argued that when the Constitution was drafted, people of African descent were regarded as a separate class never intended to be part of the political community. On that reading, neither enslaved nor free Black people qualified as “citizens” under Article III, which limits federal jurisdiction to disputes between citizens of different states.2Justia. Dred Scott v. Sandford The ruling went further still: no person of African descent could ever become a U.S. citizen, regardless of status.1National Archives. Dred Scott v. Sandford (1857)
That conclusion should have ended the case. If the Court had no jurisdiction, it had no business ruling on anything else. Taney pressed on anyway.
The Missouri Compromise Was Unconstitutional
The Missouri Compromise of 1820 had held the country together on slavery for nearly four decades. It admitted Missouri as a slave state and Maine as a free state and banned slavery in all remaining Louisiana Territory north of the 36°30′ latitude line.5National Archives. Missouri Compromise (1820)
Taney declared the whole framework unconstitutional on two grounds. He read the Territory Clause narrowly, arguing that Congress’s power to govern territories reached only lands held at the time of ratification, not the vast Louisiana Purchase acquired afterward.2Justia. Dred Scott v. Sandford He also invoked the Fifth Amendment’s Due Process Clause. Because enslaved people were legally classified as property, any federal law stripping an owner of that property for bringing it into a particular territory violated the Constitution.4Oyez. Dred Scott v. Sandford
The practical effect was sweeping. If Congress could not ban slavery in any federal territory, slaveholders could bring enslaved people anywhere in the country, and no act of Congress could stop them. It was only the second time in American history that the Supreme Court had struck down a federal statute.
How the Dissenters Answered
Justices Benjamin Robbins Curtis and John McLean wrote forceful dissents.
Curtis attacked Taney’s history directly. He documented that at the time of ratification, free Black inhabitants of New Hampshire, Massachusetts, New York, New Jersey, and North Carolina held voting rights on equal terms with other citizens. If they were citizens of those states then, he argued, they were citizens of the United States from the start. He also faulted the majority for reaching the merits of the Missouri Compromise after concluding the Court lacked jurisdiction, calling that constitutional ruling unnecessary.2Justia. Dred Scott v. Sandford
McLean challenged the legal foundation of slavery itself. He argued that slavery existed only through local state law, not through any natural or federal right. When an enslaver brought a person into free territory, the law of that territory should govern, and the person should be free. McLean also rejected the premise that Black people could never qualify as citizens, noting that women and minors, though unable to vote, were still recognized as citizens capable of suing in federal court.6C-SPAN. Scott v. Sandford Mr. Justice McLean Dissenting Citizenship, he insisted, required only that a person be free, born under American law, and domiciled in a state.
Why the Decision Mattered
Taney likely believed the ruling would settle the slavery question. It did the opposite. The decision outraged abolitionists and alienated northern moderates who saw the Court as tilting permanently toward slaveholding interests. If Congress could not restrict slavery in the territories, the political compromises that had held the Union together were gutted.
The ruling became a central issue in the 1858 Lincoln-Douglas debates and the 1860 presidential election. Abraham Lincoln and the newly formed Republican Party built much of their platform around opposing the expansion of slavery into the territories, a position the Court had just declared unconstitutional. The decision moved the country a step closer to the Civil War, which broke out four years later.1National Archives. Dred Scott v. Sandford (1857)
How the Ruling Was Overturned
The Civil War and Reconstruction rendered Dred Scott a dead letter. The Thirteenth Amendment, ratified in 1865, abolished slavery throughout the United States, destroying the property-in-persons framework at the heart of Taney’s reasoning.7Constitution Annotated. Thirteenth Amendment
The Fourteenth Amendment, ratified in 1868, directly repudiated the citizenship holding. Its opening sentence reads: “All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.”8Constitution Annotated. Fourteenth Amendment That language was written specifically to overturn Dred Scott’s rule that people of African descent could never be American citizens.1National Archives. Dred Scott v. Sandford (1857) Birthright citizenship became a constitutional guarantee no court opinion could take away.
What Happened to Dred Scott
Scott did not live to see the amendments that vindicated his claim. After the ruling, Irene Emerson (by then remarried as Mrs. Calvin Chaffee) transferred the Scott family back to the Blow family, which had originally owned Dred Scott in Missouri. The Blows freed Dred, Harriet, and their two daughters in May 1857, two months after the decision.9National Museum of African American History and Culture. The Human Factor of History: Dred Scott and Roger B. Taney Dred Scott died of tuberculosis roughly five months later, having spent the final months of his life as a free man.