According to the us supreme court ruling in worcester v. georgia,
states could impose their laws on and negotiate with american indian tribes.
only the federal government could negotiate treaties with american indians.
american indian tribes were not sovereign nations and could not file suits.
american indian tribes must accept any treaty offered by the us government.

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The 1832 case, Worcester v. Georgia, ruled unconstitutional a Georgia law requiring non-Native Americans requiring a license from the state to be on Native American land.  In responding to the case, the Supreme Court asserted that the federal government is the sole authority to deal with a Native American nation.  From this Supreme Court assertion came the beginnings of tribal sovereignty within the United States for Native American nations -- that the US government would deal with them as domestic nations inside the United States.

The court case was named after Samuel Worcester, a Christian minister working among the Cherokee who was supportive of the Cherokee cause. To block the activity of a man like Rev. Worcester, the state of Georgia passed a law prohibiting white persons to live within the Cherokee Nation territory without permission from the Georgia state government.  Worcester and other missionaries challenged this law, and the case rose to the level of a Supreme Court decision.  The decision by the Supreme Court, written by Chief Justice Marshall, struck down the Georgia law and reprimanded Georgia for interfering in the affairs of the Cherokee Nation.  Marshall wrote that Indian nations are "distinct, independent political communities retaining their original natural rights." 

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