Checkers Speech: Straw Man or Red Herring?

Would you describe Richard Nixon's 1952 Checkers speech as a straw man fallacy or a simple red herring? Why?

Many articles about the straw many fallacy describe it as a two-step process:

1) A propagandists creates a shallow imitation of his opponent's argument (i.e. a "straw man").

2) The propagandist then knocks his argument down, creating the illusion that he destroyed his opponent's original argument.

Most straw man examples clearly illustrate the first step (e.g. introducing Checkers), but I don't see the second step. If we view checkers as a straw man "argument," then how did Nixon knock that particular straw man down?

Wikipedia's straw man article calls the Checkers speech a straw man, but I'm voting to call it a red herring. Can anyone tell me why I'm either right or wrong?