We hear all this b.s. about how the nation's television comedians, the Lettermans, the Lenos, the Conans, Kimmel, SNL, etc. are equal opportunity offenders and lambast politicians of all flavors and ideologies equally.

So my question is this - Barack Obama has been an every day fixture in this country for more than 2 years.
When have any of the prominent comedians or saturday Night Live ever made a hard hitting insult or jab at Barack or Michelle Obama? I'm not saying it has never happened, but I've never heard one such joke, and I'd like to hear it if someone else has.

Saturday Night Live 'joked' about Todd Palin committing incest with his daughters in Alaska. They attacked Sarah Palin week after week. They had some very harsh skits against Hillary.
Letterman has inferred that the Palin daughters are sluts.

Has there been a single joke told by the late night comedians or SNL or any other national comedy show that should have offended the Obamas? And if not, why not?