Most likely running mates for Hilary and Rubio?

[Liberalrocks]

In Rubio's case it would likely be someone of an elder statesman quality to balance out the lack of experience perception.

For Hillary, Yes it may be too soon for Castro but then again look at Obama's rise to fame. The Clinton's tend to keep a "list" of people who have wronged or pissed them off in the past. I doubt she would select someone who chose to endorse Obama over her early on in the 08 primaries. Unless she really truly thought she needed them to win. With that said I think she goes with someone quite a bit younger and energetic without overlooking the too wet behind the ears qualities.