The document provides an overview of the Marshall Trilogy Supreme Court cases from the 1820s-1830s that established foundational principles of federal Indian law. It then discusses the 1905 case United States v. Winans, which faithfully applied these principles. The Marshall Trilogy established that Congress has plenary power over tribes, tribes have inherent sovereignty unless expressly limited, and the federal government holds tribes' lands in trust. It also established canons of construction that treaties should be interpreted in tribes' favor. Winans affirmed tribes' treaty-reserved rights to fish off-reservation, applying congressional plenary power, inherent tribal sovereignty unless limited, the trust doctrine requiring the federal government sue on tribes' behalf, and canons