What effect did the Dred Scott Supreme Court case have on Red Scott and freedom and on the Missouri Compromise?

The Dred Scott Supreme Court case had a profound effect on both Dred Scott's quest for freedom and the political landscape regarding slavery in the United States. The Court ruled that Scott, as an enslaved person, was not a citizen and therefore had no right to sue for his freedom, effectively denying him and others like him any legal recourse. Additionally, the decision invalidated the Missouri Compromise by declaring that Congress had no power to prohibit slavery in the territories, exacerbating tensions between free and slave states and contributing to the onset of the Civil War.