What were the challenges posed to white Southerners white Northerners and African Americans by the outcome of the Dred Scott Decision?

White Southerners were delighted - it meant that slavery was legal in every state of the Union.

Those white Northerners who were Abolitionists were horrified, on account of the same verdict. Other white Northerners were simply alarmed that it was driving the two sides further apart, and bringing war closer.

African-Americans were, of course, not being consulted much. Some of them may have wondered why Scott did not claim his freedom earlier, when it would have been granted automatically.