Abraham Lincoln, the Republican candidate, won the United States presidential election of 1860. He defeated the Democrat Stephen A. Douglas, the Southern Democrat John C. Breckenridge and John Bell, the Constitutional Union Party candidate.
Abraham Lincoln won the election with about 40 percent of the vote. However, he carried 18 states, which gave him a commanding victory in the Electoral College. His closest opponent in the popular vote was Stephen Douglas, who won about 30 percent of the vote but only carried one state, Missouri. John Breckenridge won all of the states of the Deep South and Maryland, making him Lincoln's closest competitor in the electoral college. Bell carried three states.
Lincoln's election to the presidency caused the South to secede from the union, for they mistrusted his and his party's negative stance on slavery.