Actually, I would say there is barely any relations: some of the higher income areas are very democrat ( so the first one is a possible answer), but some other are republican. Some of the richest are republican too. So in the end, i'd say there is no apparent relationship, although if there is, then democrats tend to be richer( but just a bit- the problem is that most of Florida is republican, so it's hard to to tell.
made up of six proposed constitutional amendments and four proposed Congressional resolutions that he was hpoing would appease Southern states and help the nation avoid a civil war.
support by the South and not by the North, it was a failure.