Final answer:
John Brown's Raid on Harpers Ferry heightened tensions between the North and the South, reinforcing the perception that abolitionists were too radical. It also transformed Brown into a martyr for some in the North and deepened the divide between the two regions.
Step-by-step explanation:
John Brown’s Raid on Harpers Ferry had a significant impact on both the North and the South. In the South, it heightened fears of slave uprisings and led to increased support for secession. Many viewed Brown as a terrorist, and his actions reinforced the belief that abolitionists were too radical. In the North, public opinion initially criticized Brown's tactics, but his composure during his trial and execution transformed him into a martyr for some. The raid further deepened the divide between the North and the South, setting the stage for the presidential election and the eventual outbreak of the Civil War.