Larry Sabato’s Crystal Ball presents 48 maps electoral maps from 1824 to 2012.
“Throughout American history, electoral coalitions have been born with fanfare. Then they age and die just like their founders, replaced by some other temporary alignment. Some majorities are flash-in-the-pan but others, like the New Deal coalition, survive for decades, deteriorating only gradually. It will be interesting to see whether the newest in the long line, the Obama majority, continues, dies, or goes into hibernation next year.”