Why did the election of 1860 cause southern states to secede?

As early as 1850, South Carolina and Mississippi called for secession. By 1860, Southern politics was dominated by the idea of states' rights in the context of slavery to support the South's agricultural economy, and slave-heavy, cotton-producing agricultural states embraced secession as the solution

Explanation:

After the election the Southern states had the idea of states right over central in the context of slavery. North did not like slavery, South did.

Explanation:

can you give a picture of the map, i'll be able to update my answer!

try something like republic or democracy joined or something because its talking about a election party.