Answer:
1.) I think the cartoonist supported slavery. My reason is because the African American is being shoved down the Free Soiler's throat, and the Free Soil party was against slavery expansion.
2.) The Democratic Party supported popular sovereignty.
3.) I don't know this one. Maybe Cuba, Central America, and Kansas are on the fence about slavery. Since the platform that says Cuba, Central America, and Kansas are on the Democratic platform, they must believe in popular sovereignty. But, the Democratic platform is holding the Free-Soiler's hair, which must mean that they do not support the Free Soil Party, who was against slavery.
Step-by-step explanation: