It doesn't matter who one pics as their VP. No Presidential election has ever been won or lost because of the VP. At best, one might pick up a couple extra votes in that persons home state and hope to not lose votes in other states by the choice. So in reality, the VP selection means jack squat.
Unless of course you pick some bumbling idiot who should be in an assisted living center like Perot did in 1992.
Who am I and what am I doing here?
Even so, It would be almost suicidal for Kerry to pick an Iowa Governor for his running mate. (maybe not such a bad thing after all!)