That being said, she'll have to choose someone solely by demographics and who fills her weaknesses. I could see an Hispanic being interesting, especially to counter a possible Cruz nomination. But would a woman and an Hispanic be too much? The country just might want one wise old white guy on the ticket....she can't risk alienating all of flyover country.
One thing we can be sure of: hilliary will do what's best for hillary, with no regard to what's best for the country.
JMHO
William Jefferson will fulfill that role, without having to be on the ticket.
This may be the last time but the 2016 demographic will still have the white male voter as a factor. Two women on a ticket one too many.