Brilliant, fascinating, analytical -- Bush v. Gore -- and how we got here. Dershowitz prove beyond any doubt (and I use these terms strictly) that the case was wrongly decided -- and shows exactly how this came about -- what motivated each of the offending Justices.
Rehnquist, Thomas, Scalia were all ideologues, of course; but Dershowitz shows, again beyond any doubt, how Scalia's opinions in Bush v. Gore absolutely ran counter, in a purely legal sense, to everything he had previously written and believed.
O'Conner was probably motivated by the naive view that Bush would be just another average Republican, and allowed feelings of party loyalty to trump logic and the law. And Kennedy, Dershowitz believes, most disgracefully of all was driven merely by personal ambition: the view that his vote would endear him the Republican Party and earn him the Chief Justice slot on Rehnquist's retirement or death.
Bush v. Gore: http://en.wikipedia.org/wiki/Bush_v._Gore
(with this, see Jeffrey Toobin's excellent book The Nine