Well, the problem is, we don't know much at this point about Miers. We'll see what comes out. But most of the hand-wringing I've seen about her so far today is nonsensical. She gave to Al Gore in 1988 - when Al Gore was pretending to be a conservative southern pro-lifer. So do you read that as Miers being a liberal Dem? Or a conservative pro-life Dem?
Either way you cut it, she identified most closely with the Democrats as late as 1988.