I should be free since I have lived in free states.
The Dred Scott case started in 1857 when Dred Scott's owner died.
hmm... what should we do?
Dred Scott then decided to make a lawsuit saying that he should be free because he lived in free states like Wisconsin and Illinois.
sorry but you can't file a lawsuit because you're property.
Many northern lawyers supported him and believed he should be free because he lived in those states.
The Dred Scott case was so big that it had to be settled by the supreme court, but it had a sad outcome.
The supreme court said Dred Scott couldn't even file a lawsuit because he wasn't a citizen, he was property. They also stated they don't have the power to outlaw slavery anywhere. So now slavery could be anywhere.
Northerners were scared and angry about all of this while southerners rejoiced.