Ted Kennedy told Al Hunt on Bloomberg TV he doesn't see the dream ticket coming to pass:

MR. HUNT: What's your view of an Obama-Clinton ticket?

SEN. KENNEDY: I don't think it's possible.

MR. HUNT: You don't. And what type of vice president choice do you think he should make? What type of person?

SEN. KENNEDY: Well, the first is always a demand that you're going to have someone that's going to be able to assume the responsibility. I would hope that he would also give consideration to somebody that has - is in tune with his appeal for the nobler aspirations of the American people. And I think if we had real leadership - as we do with Barack Obama - in the number-two spot as well, it'd be enormously helpful.

Whether Kennedy meant it this way or not, I'm sure many will read that last part as an indictment against Hillary Clinton for not offering "real leadership."