The challenge that wasn't proves that God must be a Liberal voter APPROXIMATELY 80 years ago, Jack Lang, that outspoken rebellious champion of the working class, uttered his most quoted phrase: "You can always back self-interest. It's the one horse in the race that's always trying. During my adult life, that axiom has been proven right every time on a wide range of applications from politics to business to sport. Last week the Labor caucus made a liar of Lang and defied all logic. They supported self-destruction and I must concede that I never really believed that to be possible.