A character like Christine O'Donnell presents a unique problem for a humorist. Few elaborations are called for since the caricature is self-embodied. All that is needed is a dead-pan Jack Benny look. You know, the one where he just stares blankly at the audience without saying a word and eventually someone titters and before you know it the whole place is in hysterics? Her very existence as a major party candidate for US Senate is the kind of comedy which arrives ready-written and would only be spoiled by embellishment. I mean, what can you add to rabidantimasturbationtarianism, rats with fully-functioning...