Her nomination to a constitutional executive office would cost McCain the votes of his party’s hardened racists and incorrigible misogynists. They are surely fewer in number, though, than the people who would like to participate in breaking the glass ceiling of race or gender but, given the choice, would rather do so in a more timid way, and/or without abandoning their party. And with Rice on the ticket the Republicans could attack Clinton or Obama with far less restraint.