I don't expect Russert to be fair. But hearing that he repeatedly asked what the dems solutions are and forced Dean to admit that they have none, but they'd come up with some by next year, sounds tougher than usual to me. And I doubt Dean was very happy when he left.
The transcript will show Dean had every reason to be happy with the interview, since the "Democrat plans" thing is the only even barely difficult question, but it has been asked repeatedly in many contexts, and Dean has a pat, but garbled, answer. It did not embarrass Dean. R did not go into anything embarrassing to the Democrats.