The listing, Watergate Cake with Cover Up Icing has ended.
The way the story goes, it was one of two items that were introduce by the makers of Jell-O and were popular at the time the Watergate Scandal took place. Jell-O had introduced pistachio jello and pudding, and a jello salad and pistachio cake were the brainchildren of the Jell-O test kitchens, apparently. Pistachio cake and pistachio salad quickly were renamed Watergate Cake etc., because they were filled with nuts and covered in fluff, ostensibly like the Nixon administration had been.