What issue defined the presidential election of 1860?

Abraham Lincoln

won the 1860 presidential election defeating John Breckinridge. In

the 1860 presidential election Abraham Lincoln received 180

electoral votes, John Breckinridge received 72 electoral votes,

John Bell received 39 electoral votes, and Stephen Douglas received

12 electoral votes. Lincoln received his 180 electoral votes from18

of the 33 states. He received electoral votes from the following

states: California 4, Connecticut 6, Illinois 11, Indiana 13, Iowa

4, Maine 8, Massachusetts 13, Michigan 6, Minnesota 4, New

Hampshire 5, New Jersey 4 of the 7 electoral votes, New York 35,

Ohio 23, Oregon 3, Pennsylvania 27, Rhode Island 4, Vermont 5, and

Washington 5.