Jonathan Kozol spells this out in his seminal book Savage Inequalities. You can read about here:
Savage Inequalities--A Book Review
By the numbers
A few statistics on Indian-school spending give a hint of the disparities:
A Second Century of Dishonor: Federal Inequities and California Tribes, ch. I
2004 marks the seventh straight year that $3000 will be allocated per student at BIA schools--less than half the amount per student that public schools will spend.
That's a structural inequality. It won't necessarily change if Obama or an Indian becomes president or pope. It's a large-scale, long-term problem that requires large-scale, long-term solutions.