Joe the Plumber is "horny"

Why is it that the Republican version of the regular guy is always such an idiot? Whether it's their token "redneck," as Joe the Plumber called himself last night (after he told an assembled crowd in Washington, DC that he was "horny"), or their token woman or minority, they always seem to choose from the bottom of the barrel (e.g., Sarah Palin - yes, she's attractive, but should that really be her top qualification for being president - well, that and a faked accent?) It's almost as if the leadership of the conservative movement thinks that this is what blacks, women, and regular-guys are actually like - kind of dumb and kind of goofy (and kind of into really bad country music).