Nixon and Bush both made little secret of their desire for the Supreme Court - "Strict Constructionists" who would only participate in judicial activism when it suited their interests, not others.
I wish I could remember right offhand who said it and what the exact quote was, but someone once made a reference to the importance of several mindsets on the judiciary and how reaching a majority in such a manner was very important.
What we see right now is evidence of single-mindedness, particularly with regard to the Bush-appointed justices, Roberts and Alito, who according to the National Law Journal, ruled with each other in 92% of the cases heard by the Court last year. These same two justices also ruled with Justice Scalia 87% of the time.
The voting records for the justices are all (un)surprisingly high along the idealogical lines, but there is clear evidence that the triumvirate stick together...