$0 -- sorry. 1. GW's presidency is almost over. 2. GW isn't an Aussie. 3. Politics has a poor CTR and a poor CPC.
Same, I would have said over $1,000 and even up to $10k (or more) if it is was a dot com, but not worth much (or anything) since it's a .com.au. Now, all you need to do is change your name to "George Bush", stand for the prime minister's post in Aus and if you get elected as the Prime Minister, then it will be worth a lot of money!