Lead: One hundred and fifty years ago the Republic was facing its greatest crisis. This continuing series examines the American Civil War. It is "A House Divided."

Intro: A Moment in Time with Dan Roberts.

Content: 1860. Four parties. Four candidates. Southern democrats nominated John Cabell Breckinridge and carried most of the states in the south. Breckinridge may have sucked enough votes away from the regular Democrats to give the Republicans pluralities in California and Oregon.