Very good however there are some things I would like to point out. There would have never been a whig party, no way the democratic party would have evaporated in the south, and the confederate costitituon called for one six year term for the president so Jeff Davis would not have been there in 1874.
Well, the Confederat Whig party wasn't especially related with the former (and already dead at the time) whig party. As for the democratic party, since everyone in the South was a democrat, it would have made no sense to let it in that State. I didn't want the Confederacy to become a one-party State (at least not immediately).
Also, the Confederacy had a new Constitutional Convention after the war, and the Constitution which emerged was different than the initial one (everything is explained in the TL).
Well the confederacy also was based on states rights so I dont see a national union party, and no democratic party, but still its very interesting to see someone write of hypothetical confederate politics. Very good keep it up!!!!!!