A major reason the Democrat James Buchanan won the 1856 election was that:

Question

Quizplus · Accepted Answer

The Democrats were the only remaining national party in the 1856 election, as the Whig party had dissolved and the Republican party was newly formed and not fully established yet. This gave Buchanan a significant advantage in the election. Additionally, slavery and sectional divisions were major issues in the election, with Buchanan being seen by many as a compromise candidate who could help avoid conflict between the North and South.

A Major Reason the Democrat James Buchanan Won the 1856