just telling that the obvious explanation isn't even considered: that all major media is biased toward the interest of their corporate sponsors which makes their "reporting" effectively conservative. the concerted flag waving march in support of war, the coverup of various whitewash "investigations", the hatchet job on Gore, or the relentless hunt after clinton's dick, etc .... showed that, yes, fox is especially for rightwing nutjobs, but also that the rest of the corporate media always locks footsteps behind the interest of conservative sponsors. so why should it be a surprise that fox by itself doesn't make a significant difference in viewer voting behavior when the rest of the media doesn't report from a fundamentally different perpective?