The President Richard Nixon costume remains a popular Halloween costume nearly four decades after Nixon left office and nearly two decades after his death, largely because Nixon is widely considered to have been a villain and the most infamous president in the history of the United States.
The costume usually consists of a dark colored suit, a white shirt, a tie and a mask in the, usually exaggerated, form of Nixon's face. Nixon masks are still quite easy to obtain, so the costume is not very difficult to put together. It is usually worn by males. To add to the effect, the wearer may try to imitate Nixon's voice and say some of his most famous quotations, such as, "I'm not a crook".