If Biden does jump in, he needs to do it soon, preferably today/tomorrow. That will cut in to Clinton's coverage about the debates, but leave room for coverage on the Benghazi hearings. I would rank the performances like this: O'Malley: 9 - Made some fantastic points IMO. I didn't agree with him on everything but he did a fine job. Clinton: 7 - I think she probably hurt her favorability among Independents/Republicans, but helped it among Democrats Sanders: 7 - Bombed on foreign policy (Putin specifically) but recovered. Should gain decently among minorities.
Chaffee: 2 - I think the way he tried to explain his vote on the Glass-Steagall act wasn't great, and reflective of his whole performance. Didn't say anything memorable. Webb: 0 - Democrats tend to be anti-war, stop talking about your time in the pentagon and in Vietnam, seriously.