Indian rights/law is not an area I have strong opinions, but you conclusory questions seem a little too black/white. Renegotiations happen every day. For example, the federal gov could begin to outlaw indian gaming - but then trade that off in a negotiation. In a local issue, a few years back, the county just quit maintaining the county road that led to the indian casino - the tribe then negotiated on a number of issues. Another local issue, a state threat to allow non-indian casinos resulted in significant concessions. Contracts and treaties are by their very nature subject to on-going negotiations if circumstances or leverage change.