The primary result of the Supreme Court's Dred Scott decision was that blacks were not citizens and therefore could not sure for their freedom in a US court of law, which enraged Northern abolitionists.
Explanation: the U.S. Supreme Court on March 6, 1857, ruled (7–2) that a slave (Dred Scott) who had resided in a free state and territory (where slavery was prohibited) was not thereby entitled to his freedom; that African Americans were not and could never be citizens of the United States;
