Parties in a CSA

[🐒Gods of Prosperity🔱🐲💸]

I think you would see a replay of the federalist/anti-federalist divide.  You would have a struggle between Southern Whigs and Southern Democrats over the institutional strength of the Confederacy, (currency, standing armies, etc) and rehash of urban-rural divides.  Both would largely support slavery, with some dissent within the ranks of each. 

[🐒Gods of Prosperity🔱🐲💸]

Doubt there would be a serious party system. Southern white vote was/is pretty monolithic.

take a look at the voting percentages for each state in 1844, 1848 and 1980. some *very* close elections for several states across the South.