Answer:
They supported slavery but lost the platform vote against northern democrats and left the convention
Step-by-step explanation:
- The southern democrats and northern democrats had different views about the slavery.
- The southern democrats supported slavery whereas the northern democrats wanted to support the popular sovereignty in matters of slavery.
- Due to this, a platform vote was held which was won by the northerners.
- When the southern democrats realized that the decision about the slavery will not be made on their favor.
- Following this situation, 50 southern delegates walked out of the demographic convention.