The Democratic Party Split in 1860 Over the Question of Whether

The Democratic Party split in 1860 over the question of whether to:

A) renominate President James Buchanan for a second term.
B) protect slavery in the territories or allow popular sovereignty in them.
C) impeach Chief Justice Roger Taney for the Dred Scott decision.
D) endorse the acquisition of Cuba by the United States, thus increasing slave territory.