Banish any thought that its brilliant star, Julia Louis-Dreyfus, would return to the series after a personal cancer scare inclined to soften Selina Meyer for even a subliminally sentimental exit. Instead, and with great satisfaction, it appears "Veep" will go out at its nastiest and bitterest best - judging at least from the first three episodes (of seven) of this season. Some time has passed since we last saw Selina and her loyal band of nincompoops; they are in Iowa, of course, preparing to announce her candidacy in a crowded field of apparently Democratic ("Veep" was always coy on the matter) contenders.