you know that & I know that
but the cartoonist's intended audience doesn't get the idea that Obama isn't the entire United States government except when they sit down and think about it, which is rare.
A substantial part of this guy's ouvre depends on using a boneless leg-flip to signal "gay". Compared to that, the distinction between legislative and administrative functions, particularly when the administrative is rockstar and the legislative has been hiding under a rock, is a bit sophisticated. If the cartoonist mean the chimp to represent Congress, it's like explaining relativity using choo-choo metaphors because the word "train" is too big.