At the heart of modern politics, is a fundamental dishonesty that politicians and government can solve problems that are inherently unsolveable (health, happiness, wealth). And politicians that promise solutions to these types of problems are dishonest and worse still they corrupt the political system by undermining what the system is good at providing - imperfect, transitory compromises that keep the place ticking over
Add this to his AGW scepticism, and I think that this is a man I would be content voting for as either Prime Minister of Australia or Premier of New South Wales.
Acknowledging the inherent limitation of governing an imperfect world is the beginning of political wisdom. That is why I am a conservative / libertarian. Now if the tools on the other side of the aisle got their act together and started believing the political theory their party espouses, perhaps Costa might find a home in the Liberal Party.