Miers and Roberts are going to be making their first Supreme Court decisions and writing their first opinions sometime around June of next year -- right in the middle of the 2006 midterm election cycle. I find it hard to believe that the GOP would invite the kind of election disaster that would be brought down upon them if these two justices turn out to be anything remotely close to a David Souter.
And if the SCOTUS would just so happen to reverse a court decision that favored the Liberal agenda just prior to the midterm elections such as the "Eminent Domain" case, then a 2006 Republican victory could be well in hand.
I would love to be a fly on the wall at the White House today.
Once they're on the court they do what they will.