How well do you think Native American

organizations, like the Bureau of Indian Affairs (BIA), the National Congress of American
Indians (NCAI), and the National Indian Gaming Association (NIGA), are helping Native
Americans to advance

What I think? I think one should look for evidence that Natives are gaining (health care, wealth, longivity, reduced infant mortality, etc), and if any of those exist, root the causal factors out. My gut feel is none of those organizations produce results, but one would have to examine the evidence.