Who supported the candidacy of James Buchanan?

James Buchanan's candidacy for the presidency in 1856 was primarily supported by the Democratic Party, which aimed to maintain its dominance in national politics. His platform appealed to various factions within the party, including those favoring popular sovereignty regarding slavery. Additionally, Buchanan received support from Southern Democrats who sought to protect their interests and maintain the Union. His established political background and experience also garnered him endorsements from influential party leaders.