This article suggests that Michael McConnell is the "most confirmable" of the Bush Administration’s potential Supreme Court nominees. Doubtless those who are out of the mainstream themselves would call him (and likely any other Bush nominee) out of the mainstream, but he had a distinguished roll of liberal supporters when he was nominated to the Court of Appeals.

Update: For a preview of the opposition to McConnell, should he be nominated, go here. Hat tip: Religion Clause.