Andrew Sullivan observed when others are losing their composure, you can look at Obama:

And still he’s calm. Not too cocky. A little aloof, but very professional. He learnt all of this as a black man in a white country: no sudden moves; no anger. That’s how he managed his white mother in adolescence. That’s how he manages a white electorate increasingly at ease with him. And, by a massive stroke of luck, that’s what voters want now. In an economy that is melting down, with two wars still raging, they want calm above everything else. They want to know that the man in charge will not panic, will not be flustered, will not blow up.

After eight years of excitement, American is looking for a man in control of himself, or maybe we're just looking for a good tranquilizer.