OK, there are few things less important than who snotty Canadians think the Presidential candidates should choose as their running mates, but a man has to think of his Google Ad revenues.
What groups are up for grabs? Middle aged women in industrial states, particularly if Catholic, and middle-income Hispanics. But you can't forget party unity.
Obama has to go with Hillary Rodham Clinton, unless she's taken.
For McCain, I'd say Condolezza Rice, although it would be way better if she were Hispanic. Or at least married and Catholic.