I think the important thing here is that Bush is rapidly becoming a very weak and rather unpopular president. If he puts up someone too devisive, to be decided on next year... well, good. He'll look even weaker, which will help unify Democrats coming into the next congressional elections. Bush will have to sacrifice even more political capital in order to ram his appointee through, which should keep him pretty ineffectual for the foreseeable future.... and that, in my POV, isn't a bad thing.
At least it's not Rehnquist. Yet.