Final answer:
The Dred Scott decision brought more discord to the nation over the issue of slavery, deepening the sectional divide between the North and the South.
Step-by-step explanation:
The Dred Scott decision brought more discord to the nation over the issue of slavery. The decision, made in the case of Dred Scott v. Sandford in 1857, deepened the sectional divide between the North and the South. From the northern perspective, the decision confirmed their fears about southern slave power and the expansion of slavery. On the other hand, the decision provided a sense of protection for the South and solidified their support for the institution of slavery.