Bloomberg News reports that the discussions have begun for an Obama-Clinton ticket. He says CNN reports this, but I can't find it (A), and I would be surprised if they posted something so speculative (B).
Oh, and thank god we're starting to talk about changing this system. With a universal proportional system, which the Dems now have, two equally popular candidates could do this every year. Had it not been for a system of proportional-winner take all states, the Republicans would be going through this too.
And just so everyone knows, I do support that ticket (this is an old picture, no one's posted an Obama-Clinton ticket yet):