I wrote this one because I kept running across something I found really bizarre: the notion that top tier candidate X is above criticism, and any Democrat who supports top tier candidate Y or Z instead is a Republican dupe, if not an active emissary sent out by Karl Rove himself. If you follow message boards or comments threads at all, you know that it’s vehement this year, in a way that I don’t really remember from previous primaries. Supporters of each candidate are certain that if you don’t fall in line behind their person, then the Democrats will lose and “it will all be YOUR fault!” Whoever you are. Choose the wrong top-tier candidate this year and you might as well be a Naderite. It’s a strange way to approach a primary season.