What were the causes of the sectional tensions?

The sectional tensions in the United States during the 19th century were primarily driven by differences in economic interests, social structures, and political power between the North and South. The North's industrial economy clashed with the South's agrarian reliance on slavery, leading to deep ideological divides. Additionally, debates over the expansion of slavery into new territories fueled conflicts, as both regions sought to maintain or expand their influence. The failure to find a political compromise on these issues ultimately exacerbated divisions, culminating in the Civil War.