He contains multitudes
The problem with John McCain’s selection of Sarah Palin as his running mate is not — or not mainly — about her qualities, or even her qualifications; the problem is what it reveals about McCain himself: that he and his advisors are not bothered by self-contradiction, that the only logic that governs his campaign rhetoric is the logic of political advantage. Experience is all-important, except when it isn’t. Identity politics is bad, unless it’s good. Country first, once he’s elected.
For the first and last word on this subject, see Michael Kinsley’s Slate column here.