VICE PRESIDENT JOE BIDEN: If Bernie Sanders had never said he was a "Democratic Socialist," based on what he is saying, people would not be calling him that. That's how he characterizes himself --in sort of European terms-- like the Democratic-socialist parties in Europe.
GLORIA BORGER, CNN: But why is [Clinton] having trouble [beating him]?
BIDEN: Bernie is speaking to a yearning that is deep and real, and he has credibility on it. And that is the absolutely enormous concentration of wealth in a small group of people with the middle class being left out...
CNN: But Hillary is talking about that as well?
BIDEN: Well, it is relatively new for Hillary to talk about that. Hillary's focus has been on other things up until now, and it has been Bernie's --no one questions Bernie's authneticity on these issues.
CNN: And they question [Hillary's]?
BIDEN: They question everyone who hasn't been talking about it all along.