"What I don't understand is, here we are in Australia saying let's be fair and reasonable but we're not prepared to play by the rules. That's not on. I don't understand where you can have a situation where all of a sudden Australia would say that we're not going to play by the rules. That's not Australian. It's not fair."With Barnaby Joyce saying his support requires amendments to the Bill, Howard's in a precarious position with a majority of just one and expectation that some Liberal Senators may abstain or vote against the Bill.
Road to Surfdom has a very useful overview of the issues, positions and possible outcomes here.