A talking point that seems to be rattling around the sinestrosphere is that we should call shenanigans on the GOP for having read the Constitution in its current form, rather than including things like the 18th Amendment and the often-misunderstood 3/5 clause. Some of the more visible exponents of this theory include Dahlia Lithwick at Slate, who is to punditry what thalidomide babies are to juggling, and Dana Milbank at WaPo.
The Gormogons’ Ghettoputer examines their crankiness and suggests possible motives for the kerfuffle. You should read what he has to say. It’ll be beamed directly into your brain soon enough.