If we put everything together in our final index, the GOP has a Trende-Byler score of 36.0, the highest score for the GOP since 1928 (when it scored a staggering 51.8)…

Note that the 2006 and 2008 elections now look decidedly like aberrations. It is hard to square this with an overall view of an ascendant Democratic Party, though there is still a lot of history to be written.