“Landrieu thinks Louisianans are bigots. Orman thinks Dole’s a clown. Braley thinks Iowans are hicks. What next? Coakley attacks Paul Revere?”

With a single tweet, National Review’s Charles C.W. Cook summed up the widespread desperation of Democrats mired in their records of support for President Obama and flailing about for anything to grab on to. Late-in-the-campaign pratfalls by losing candidates are common enough, but the number and variety of them among Democrats this year is unusually high.