The<u> Southern Democrats</u> supported secession from the United States after the 1860 presidential election.
Explanation:
One of the most pivotal American presidential elections was the one held in 1860. Abraham Lincoln won with a landslide victory.
Lincoln could dominate the Northern States but failed considerably to garner votes in the Southern States.
There was also a huge civil unrest over slavery, State Rights, tariff disagreements, etc. Slavery being legal in the South was banned in the North; the northerners were industrialists and the southerners being slave owners.
With all these unrest and the feeling that Lincoln’s idealism was against them, the southern democrats began to revolt and secede from the union.
South Carolina lead the secession followed by states like Florida, Georgia, Texas, Mississippi, Louisiana, Alabama, Virginia, Tennessee, North Carolina joined the group. All these southern democrats formed the Southern Confederacy with Jefferson Davis as the president
.