In the presidential elections of 2000, 2004, 2008 and 2012, the map looked like the civil war map with switched parties. However, if we observe the margins, and not only the winners of the states, we can observe that the north-south polarization was not so big in 2000 as it was in 2004, 2008 and 2012. George W Bush had narrow victories in Tennessee and Arkansas, and Al Gore had narrow victories in Minnesota, Wisconsin, Michigan and Iowa. In 1996, it didn't look like that the map would become the civil war map, since Clinton's margin in Louisiana was bigger than his margin in Wisconsin.
Could we have expected a map like this in 2000?