He's pissed that the Big Media didn't "do its job" and ignore the "Teabaggers", "Astroturfers", "Birthers", "Mobsters", "Swastika-carriers", "Evilmongers", "Right-wing Extremists", "Those Sent By The Republican Machine".
In other words, Obama's pissed that the Big Media, who's supposed to be unconditionally on his side, didn't ignore the majority of the American People who don't want what he's trying to lie about and impose on them.
I betcha the Big Media will try harder in the future to