Lol, it's been "rules for thee, not for me" for quite a long time. In particular, look at the US's 2002 Hague Invasion Act that basically says they don't give a fuck what the court says and if they mess with the US or US military, they'll do anything in their power to stop it, including taking military actions.

The rules are that US does whatever it wants, and everybody else has to do what US tells them to.