David Axelrod actually said...

Her legacy has been described here. I mean, her legacy is one of defending the indefensible and not being truthful with the American people.

If you are the spokesperson for a habitual liar, it's like being fire marshal for a pyromaniac. You know, it's not going to end well for you...

I think the greatest challenge for him is to become a candidate who's plausibly of the future.

That's his strategy, and without them sniping at him.