Bush 41 was not the conservative that Dubya is. Reagan is rumored to have said after the "no new taxes pledge" was broken that he should have gone with Ford (who of course appointed John Paul Stevens, possibly the most liberal justice ever). For that matter, if Reagan had been more diligent in finding a conservative instead of overzealously appointing the first woman justice, we wouldn't have the 4-4-1 split on matters like abortion we do today.
Do you agree with Rush, then, that even if Specter ends up being Judiciary Chairman (which does seem unlikely now thanks to lots of opposition from people like us), things will work out OK with the new Justices that are appointed?