The main source of hilarity has been the Tea Party movement and its candidates, quite a few of whom give every indication of being several sandwiches short of a picnic. Whether they win or lose – and yes, there remains the possibility that some might actually be elected – they leave us with mondo-bizarro moments that may require years of psychoanalysis for our collective political psyche to purge.

Chief among them is an all-time classic of weirdness, right up there with those campy 1950s sci-fi/horror flicks like “Plan 9 from Outer Space” or “Earth vs. the Flying Saucers.” You’ve probably guessed that I refer to Christine O’Donnell’s incomparable “I’m Not a Witch” television ad.