Wouldn't this be a serious blow to the Hillary campaign? It does make sense.
- Gore has always held a personal sentiment against Hillary Clinton as to why he lost the election in 2000. People close to Gore have disclosed his animosity against Hillary that has developed since then. Gore is not the hawk he once was, but I don't believe he's softened up enough to support John Edwards.
- Kennedy and Kerry both are not fans of Hillary's stance on Iraq. While an endorsement from Kerry does not do much for Obama given his waning popularity amongst Democrats, Kennedy still has a lot of pull amongst hardcore liberals and the combined power of their endorsements would do a lot for Obama in the New England area, where Hillary seems to have more traction.
It will be interesting to see how it all plays out.