Which tribe is not counted in the census but has their own special one?

The economy of the united states is best described as

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.

Why are rates of overweight and obese children especially high among african american and latino children?