The most plausible argument against a directly elected president is that a nominee of one of the major parties would almost certainly get up. If the President and Prime Minister were of the same party, the President would be even more a rubber stamp than the GG. If they were of opposite parties, there would be an increased risk of partisan deadlock. This is certainly undesirable, but is it a likely outcome?
This argument depends on the assumption that a large majority of Australians would vote for the candidate of their preferred party. How large a majority is needed? The evidence suggests that no more than 30 per cent of voters are ‘rusted-on’ Labor voters who would vote a straight Labor ticket in all elections, and similarly for the Liberals/Nationals[1]. That leaves 40 per cent who can be swayed either way.
This means
* An appealing independent candidate could win in a three-sided contest
* If one party chooses not to run a candidate, the other party’s candidate would almost certainly lose
So, given a widespread belief that the President ought not to be a partisan, I think it is unlikely that the major parties would run candidates and win the first time around. Once the norm of an independent presidency was established, it would be almost impossible for either major party, acting alone, to break it.
Ken Parish has more, repeating the point that we can, if we choose, have direct election without, or prior to, a Republic. He also has some nice points about experimentation in a Federal system. It’s fair to say we’ve been experimenting with different gubernatorial models lately, and not having a very high success rate.
fn1. In the last Senate election Labor got 34 per cent of primary votes, and at least some of these must have been swinging voters. Similarly for the coalition in 1998.