What were the conflict during James Buchanan presidency?

During James Buchanan's presidency (1857-1861), the nation faced significant conflicts primarily stemming from the issue of slavery. The Dred Scott decision by the Supreme Court in 1857 intensified sectional tensions by ruling that African Americans could not be citizens and that Congress could not prohibit slavery in the territories. Additionally, Buchanan's support for the pro-slavery Lecompton Constitution in Kansas further alienated anti-slavery factions and contributed to violent conflict in the region, known as "Bleeding Kansas." These issues exacerbated the divide between the North and South, setting the stage for the Civil War.