[Kamq]

> If the treaty is violated without clear intent by Congress, it would still be in force, and the affected Tribe or Tribes could sue for performance, possibly even affected persons, if they are deemed to have standing.

This is probably the part I was missing. That seems to be a departure from regular international relations standards, but there's a couple of clauses in the constitution specifically about relations with natives, so it makes sense there's some subtleties to the subject.

Thanks for the link, I appreciate it.