Who represented d the Norths point of view in regard to slavery and the tariff?

In the context of the North's perspective on slavery and tariffs, prominent figures like Senator Daniel Webster and President Abraham Lincoln often articulated the Northern position. The North generally opposed the expansion of slavery into new territories, viewing it as morally wrong and a threat to free labor. Additionally, Northern industrial interests favored protective tariffs to shield their growing industries from foreign competition, which contrasted with the South's reliance on agriculture and exports. Together, these elements highlighted the economic and ideological divides between the North and South leading up to the Civil War.