1. he's black and,
2. he's beloved by the cognoscenti.
Many of the late-night comics and their writers — nearly all white — now admit to The New York Times’s Bill Carter that because of race and because there is nothing “buffoonish” about Obama — and because many in their audiences are intoxicated by him and resistant to seeing him skewered — he has not been flayed by the sort of ridicule that diminished Dukakis, Gore and Kerry.
Which made me think of this:
Q: What is one key difference between a conservative and a liberal?
A: You can tell a conservative a joke and not worry about repercussions.