Barry Cohen writes in The Age about Costello's lost opportunity to lead the Liberal Party and eventually win his dream job - the Prime Ministership.
Cohen predicts Brendan Nelson's impending doom, once the Libs wake up to the irony that they now have an ex-union official and former Labor member and voter as their leader.
Costello's petulence has probably destroyed any chance he would have had anyway.
It's just nice to watch the Libs go through all this turmoil after what they put Australia through for over a decade.
A decision he'll regret - Opinion - theage.com.au