What kind of impact did the Dred Scott Decision have?

The Dred Scott Decision, issued by the Supreme Court in 1857, had a profound impact on the United States by effectively ruling that African Americans, whether free or enslaved, could not be considered citizens and had no right to sue in federal court. This decision invalidated the Missouri Compromise, heightening tensions between slave and free states and contributing to the polarization that led to the Civil War. It reinforced the institution of slavery and emboldened pro-slavery advocates, while simultaneously galvanizing abolitionist movements and increasing calls for civil rights. Ultimately, the ruling underscored the deep-seated racial divisions in American society and set the stage for future legal battles over slavery and civil rights.