Why was the "one-drop rule" of racial categorization never used to classify Native Americans?

Question

Quizplus · Accepted Answer

The "one-drop rule" was not applied to Native Americans because they received legal entitlements, such as treaties and land rights, which were often contingent upon their racial classification. This necessitated a different approach to their racial categorization compared to African Americans, for whom the one-drop rule was primarily used to enforce racial segregation and deny rights.

Why Was the "One-Drop Rule" of Racial Categorization Never Used