[FrenchAmerican]

The rule of law applies to a government as well as any other body, organization, firm or person.

That's the most fundamental difference between a democratic country and authoritarian & tyrannical regimes.

You can sue the US government in US courts and to some extent in international courts.

Not that democratic governments don't abuse their power. They do quite regularly, but still: even their use of force is limited by the law.