It doesn't really come across in the transcript, but if you get a chance to see video of Bush's cabinet meeting, Bush says "international law?" as if it was the most ridiculous thing he'd ever heard.
http://www.whitehouse.gov/news/releases/2003/12/20031211-1.html
Q Sir, Chancellor Schroeder says international law must apply in this case. What's you're understanding of the law?
THE PRESIDENT: International law? I better call my lawyer; he didn't bring that up to me. I asked President Chirac and Chancellor Schroeder and President Putin to see Jim Baker, to talk about debt restructuring. If these countries want to participate in helping the world become more secure by enabling Iraq to emerge as a free and peaceful country, one way to contribute is through debt restructuring. And so Jim Baker, with the consent of the Secretary of State, is going to go over and talk to these leaders about that. But I don't know what you're talking about, about international law. I've got to consult my lawyer.